Lexicon of Canadian Stratigraphy

Volume 4 Western Canada

Editor : D.J. Glass

Electronically Published by Flexys Systems

Lexicon of Canadian Stratigraphy Volume 4 Western Canada, Including Eastern British Columbia, Alberta, Saskatchewan and Southern ManitobaEditor: D. Glass

Canadian Society of Petroleum Geologists 1990 1997 Calgary, Alberta

ISBN 0-920230-23-7 Electronically Published in Canada by Flexys SystemsWhile every attempt has been made in the publishing of this lexicon to maintain the accuracy of the original paper version, Flexys Systems cannot accept responsibility or liability for any errors that may have occurred as a result of the OCR (optical character recognition) software utilized in digitizing the original.

Lexicons of Canadian StratigraphyVolume I Volume 2 Volume 3 Arctic Archipelago (District of Franklin). Yukon-Mackenzie (Yukon Territory and District of Mackenzie). Western Cordillera (southwestern Yukon Territory and Western British Columbia). Western Canada (eastern British Columbia, Alberta, Saskatchewan and southern Manitoba). Central Canada (Ontario, Quebec, northern Saskatchewan and Manitoba and District of Keewatin). Atlantic Region (New Brunswick, Prince Edward Island, Nova Scotia and Newfoundland and Labrador).

Volume 4 -

Volume 5 -

Volume 6-

PREFACEThe Lexicon of Canadian Stratigraphy, Volume 4, Western Canada (including eastern British Columbia, Saskatchewan and southern Manitoba) is the third lexicon to be published by the Canadian Society of Petroleum Geologists on stratigraphic units within the Western Canada Sedimentary Basin. The first, published in 1954 contained 196 names of stratigraphic units in Alberta. The Lexicon of Geologic Names in the Western Canada Sedimentary Basin and Arctic Archipelago, published in 1960 described 554 units. Since 1960 the profusion of published and unpublished geological information has resulted in the creation of many new names and an improved understanding of many earlier named units. The coverage of the 1960 lexicon has been divided into three regions for the present Lexicons of Canadian Stratigraphy series; the first two volumes of which, on the Arctic Archipelago (District of Franklin) and Yukon Territory and District of Mackenzie were published in 1981; the present volume completes the trio. This volume contains 1178 entries ranging in age from Precambrian to Recent, arranged in alphabetical order. It includes formal, many informal, some obsolete and some local names defined in western Canada, but does not claim to include all of the geological unit names currently in use in one way or another in Western Canada. A list of the contents of the volume by geologic system follows the preface. The area covered lies generally between 49N and 60N, from the Rocky Mountain Trench to outcrops of the Precambrian Shield in Saskatchewan and Manitoba. The lexicon is intended to provide an initial reference for those seeking information on specific stratigraphic units. Due to the scope of the volume however, some entries may be a little dated, but the extensive bibliography should lead researchers to further readings. The entries in the lexicon reflect the efforts of at least the 121 contributors and reviewers listed below. The Canadian Society of Petroleum Geologists is grateful to these, and to the many others whose names do not appear in the list, but who also contributed their time and knowledge.RNA JDA LDA JMA HRB RKAB GB GEB DRB AIB WGEC MPC HAKC BIC EAC JEC JJC WAC DGC MPC JHC R.N. Adair J.D. Aitken L.D. Andriashek J.M. Andrichuk H.R. Belyea R.K.A. Bezys G. Bloy G.E. Bourns D.R. Braman A.I. Burnett W.G.E. Caldwell M.P. Cecile H.A.K. Charlesworth B.I. Chi E.A. Christiansen J.E. Christopher J.J. Clague W.A. Cobban D.G. Cook M.P Coppold J.H. Craig KLC WGC CD JAD CED RWE LSE ZF RPF PRF NRF WKF HG DWG LDG RGG ASPG FMH HLH RLH G.H. K.L. Currie W.G. Cutler C. Dawes J.A. Dolph C.E. Dunn R.W. Edie L.S. Eliuk Z. Farshori R.R Featherstone P.R. Fermor N.R. Fischbuch W. K. Foo H. Gabrielse D.W. Gibson L.D. Grayston R.G. Greggs Lexicon 1960 F.M. Haidl H.L. Halbertsma R.L. Hall G. Hassler RJH BJH CMH HEH RYH LVH KEJ TTZJ DMK RWK JWK FFK LKK JL GBL MML JFL ML GM SM KAM R.J. Hawes B.J. Hayes C.M. Henderson H.E. Hendry R.Y. Higgs L.V. Hills K.E. Jackson T.T.Z. Jerzykiewicz D.M. Kent R.W. Klassen J.W. Kramers F.F. Krause L.K. Kreis J. Law G.B. Leech M.M. Lerand J.F. Lerbekmo M. Lomenda G. Macauley S. Machielse K .A. McAdam

HRM JGM MRM AM RLM JRM MEM RDM DHM NCMD KRM PAM PFM DWM GDM EWM MRM BSN AWN DKN

H .R. McCabe J.G. McCamis M.R. McDonough A. McGugan R.L. McKellar J.R. McLean M.E. McMechan R.D. McMechan D.H. McNeil N.C. Meijer Drees K.R. Milner P.A. Monahan P.F. Moore D.W. Morrow G.D. Mossop E.W. Mountjoy M.R. Mudge B.S. Norford A.W. Norris D.K. Norris

DWO DFP AEHP EEP DGP GGP DAP LLP RAP DCP PEP RAR BCR BR JWR LSR NWR HS WWS FS

D.W. Organ D.F. Paterson A.E.H. Pedder E.E. Pelzer D.G. Penner G.G. Phipps D.A. Pounder L.L. Price R.A. Price D.C. Pugh P.E. Putnam R.A. Rahmani B.C. Richards B. Rottenfusser J.W. Rowling L.S. Russell N.W. Rutter H. Sabry W.W. Shepheard F. Simpson

CS SKS AMacSS CRS FAS DFS GCT LTB DRT JAV JHW IW JW JAW EPW GKW RdeW FGY GZ

C. Singh S.K. Srivastava A. MacS. Stalker C.R. Stelck FA. Stoakes D.F. Stott G.C. Taylor L. Ter Berg D.R. Turner J.A. Vonhof J.H. Wall I. Weihmann J. Wendte J.A. Westgate E.P. Williams G.K. Williams R. deWit F.G. Young G. Zolnai

The Society also expresses its appreciation to P.A.. Monahan for the early planning of the lexicon in 1978 and for serving as committee chairman until 1984. Thanks are also due to J. Grassby, who headed the project from 1984 to 1986, and to all those who served on those committees. The contribution of Canterra, Gulf Canada and CN Exploration, who housed the accumulating files of data; Core Laboratories for providing the Stratigraphic Correlation Chart; Federal and Provincial geological institutions, Universities and Industry, which provided contributors to the project was, as always indispensible. Deanna Dunne, of the C.S.P.G. office, expertly typed and sorted the reference list. The present Lexicon Committee, with D.J. Glass as Editor completed the project in 1990. Andre Chow Paul Frydl Carl Hughson Jeff McLean Christian Buck, Chairman

CONTENTS OF LEXICON BY SYSTEMQUATERNARYAikins Till Albertan Formation Arran Formation Assiniboine Valley Sediments Athabasca Till Balzac Till Baseline Till Battleford Formation Bedford Formation Belair Drift Bighill Creek Formation Bonnyville Formation Bow Valley Till Bridge River Tephra Brocket Till Bronson Lake Formation Buffalo Lake Till Calgary Silt Canmore Till Cartwright Till Chain Lakes Clays and Silts Coleharbor Member Condie Till Crossfield Till Cypress Hills Formation Cypress Hills Loess Deserters Canyon Till Drystone Creek Till Drywood Soil Echo Lake Gravel Edson Till Eisenhower Junction Till Elkwater Drift Empress Group (Formation) Ernst Till Erratics Train Till Ethel Lake Formation Etzikom Drift Expanse Formation Floral Formation Furman Till Glacier Peak Tephra Glenwoodville Drift Grand Centre Formation Grunthal Formation Hazel Formation Hidden Creek Till Hummingbird Till Irvine Bed (Glacier Peak Tephra) Jackfish Creek Till Kennedy Drift Kimball Drift Labuma Till Lac du Bonnet Formation Lake Agassiz Clays Lamoral Till Largs Formation Leinan Till Lennard Formation Lenzie Silt Lethbridge Drift Libau Drift Lochend Till Lowland Gravel Manyberries Volcanic Ash Marchand Formation Marguerite Till Marie Creek Formation Marlboro Till Marsh Creek Till Marysville Sands Maunsell Till Mayberne Till Maycroft Till Mazama Tephra (Galata Ash, Bighill Spring Ash) Midnapore Silts Minnedosa Formation Misty Till Mitchell Bluff Formation Morley Till Mount St. Helens Set Y Tephra Muriel Lake Formation Obed Till Oldman Drift Pakowki Drift Pekisko Till Porcupine Till Portage Mountain Till Prelate Ferry Paleosol QuAppelle Alluvium Raven Creek Till Regina Clay Riddell Member Roaring River Clay Rosa Formation Roseau Formation Rouleau Clay Sand River Formation Saskatoon Group St. Malo Formation Saskatchewan Gravels Senkiw Formation Sheep River Silts and Clays Shell Formation Souris Sand and Gravel Sprague Formation Spy Hill Till Stimson Creek Till Strathcona Sand and Silt Stuartburn Formation Sutherland Group Sylvan Lake Till Tableland Gravel Tee Lakes Formation Timber Creek Till Tofield Sand Tolstoi Formation Twin Cliffs Formation Vita Formation Walsh Drift Wascana Creek Ash (Pearlette Tephra) Wellsch Valley Tephra Whitemouth Lake Formation Whiteshell Formation Whoop up Formation Wildhorse Drift Wolf Island Sediments Woodmore Formation Wymark Till Zelena Formation

TERTIARYDel Bonita Gravels Flaxville Formation Foothills Series Goodlands Member Hand Hills Formation Kishenehn Formation Paskapoo Formation Peace Garden Member Porcupine Hills Formation Ravenscrag Formation Saddle Hills Conglomerate Saint Eugene Formation Saskatchewan Gravels Swan Hills Gravels Sweetgrass Hills Dykes Swig Current Creek Beds Turtle Mountain Formation Wintering Hills Gravels Wood Mountain Beds

CRETACEOUSAlberta Group Alderson Member Alexander Sandstone Alice Creek Tongue Allison Formation Amundson Member Aquadell Member Ardkenneth Member Ardley Coal Seam Ashville Formation Ashville Sand Assiniboine Member Athabasca Oil Sands Atlas Member Bad Heart Formation Bantry Shale Member Barons Sand Basal Colorado Sand Basal Quartz Bassano Member Bassano South Sandstone Battle Formation Baytree Member Bearpaw Formation Beattie Peaks Formation Beaudette Group Beaver Mines Formation Beechy Member Belanger Member Belle Fourche Shale Member Belly River Formation Benton Shale Berland River Shares Bickerdike Member Bickford Formation Big River Formation Bighorn Formation Birch Lake Member Black Eagle Member Blackleaf Formation Blackmud Member Blackstone Formation Blairmore Group (Formations Blood Reserve Formation Bluesky Formation Boissevain Formation Bonanza Sandstone Bootlegger Member Borradaile Member Boulder Creek Formation Bow Island Formation Bowdoin Sandstone Boyne Member Boyne Sand Brazeau Formation Brenot Formation Broderick Member Brosseau Member Brown Lime Submember Buckinghorse Formation Buick Creek Sand Bullhead Group Bulwark Sandstone Bulwell Member Burnstick Member Cadomin Formation Cadotte Member Calahoo Sandstone Calcareous Member Cameron Sand Cantuar Formation Carbon Gas Sandstone Cardinal Member Cardium Formation Cardium Zone Member Carlile Shale Carrot Creek Member Cessford Sand Cheval Beds Chinook Member Chungo Member Claggett Formation Clearwater Formation Coal Sand Coalspur Beds Colony Sand Colorado Group Commotion Formation Comrey Member Cone Member Cosmos Sand Coulter Member Crassier Group Crooked Hole Sand Crowsnest Formation Cruikshank Member Cruiser Formation Crystal Clinobed Cummings Member Cut Bank Sandstone Dakota Formation (Group) Dalhousie Conglomerate Darling Sand Deadhorse Coulee Member Demaine Member Detrital (Deville) Beds Deville Formation (Detrital) Dimmock Creek Member

CRETACEOUS (continued)Dina Member Dismal Rat Member Doe Creek Sandstone Dokie Ridge Member Dowling Member Dorothy Bentonite Dorothy Sandstone Dresser Formation Drumheller Marine Tongue Dunlevy Formation Dunvegan Formation Dynneson Sandstone Eagle Formation Eastend Formation Edmonton Formation (Group} Ellerslie Member Entrance Conglomerate Falher Member Favel Formation Ferdig Member First Castor Sandstone First White Speckled Shale Fish Scale Sandstone Flood Member Flotten Lake Sand Floweree Member Foremost Formation Fort Augustus Formation Fort Nelson Formation Fort St. John Group Fox Hills Formation Frenchman Formation Gammon Ferruginous Shale Garbutt Formation Garden Plain Tuff Gates Formation General Petroleum (G.P.) Sand Gething Formation Giroux Sand Gladstone Formation Glauconitic Sandstone Goodrich Formation Gorman Creek Formation Grande Cache Member Grand Rapids Formation Greenhorn Lime Grit Bed Grizzly Bear Member Hamilton Lake Sand Hanson Member Harmon Member Hasler Formation Haven Member Hell Creek Formation Highwood Sandstone Home Sand Hoosier Clinobed Hornbeck Member Horseshoe Canyon Formation Horsethief Sandstone Howard Creek Member Howell Creek Intrusives Hulcross Formation Inyan Kara Group Islay Member Joli Fou Formation Judith River Formation Jumping Pound Member Kakwa Member Karr Member Kaskapau Formation Keld Member Kevin Member Kipp Sandstone Kiska Member Kneehills Tuff Kootenai Formation Kotaneelee Formation Labiche Formation Lander Sand Laurier Limestone Beds Lea Park Formation Lepine Formation Lethbridge Member Leyland Member Lineham Member Lloydminster Formation Lloydminster (Lloyd) Sand Looma Member Loon River Shale Luscar Formation Ma Butte Formation MacGowan Concretionary Bed Magrath Sandstone Malcolm Creek Formation Mannville Group Manyberries Member Marco Calcarenite Marias River Shale Marshybank Member (Formation) Martin Sandy Zone Matador Member McDougall-Segur Conglomerate McLaren Member McLeod Member McCloud Member McMurray Formation Medicine Hat Sandstone Medicine Lodge Member Merrington Clinobed Millwood Member Milk River Formation Mill Creek Formation Minnes Group Monach Formation Montana Group Monteith Formation Moosebar Formation Moosehound Member Morden Shale Mosby Sandstone Moulton Member Mountain Park Formation Mowry Shale Formation Mulga Tongue Muskiki Member (Formation) Musreau Member Myrtle Creek Formation Nevis Member Newcastle Formation Newcastle Sandstone Member Niobrara Formation Nomad Member Nosehill Member Notikewin Member Nunki Sandstone Odanah Member Okla Sandstone

CRETACEOUS (continued)Opabin Member Oldman Formation Ostracod Beds Ostrea Shale OSullivan Member Outlook Member Oxarart Member Paddy Member Paintearth Member Pakan Formation Pakowki Formation Pale Beds Peace River Formation Pelican Formation Pembina Member Pembina Mountain Group Pembina River Member Pense Formation Phillips Sandstone Pierre Shale Pocaterra Creek Member Pouce Coupe Member Provost Member Puskwaskau Formation Ram Member Raven River Member Red Speck Zone Residual Zone Rex Sand Ribstone Creek Member Ricinus Member Riding Mountain Formation Ryegrass Sandstone Sage Hen Limestone Saunders Group Sawridge Formation Scatter Formation Scollard Formation Second Castor Sandstone Second White Specks Sandstone Second White Speckled Shale Shaftesbury Formation Shandro Member Sherrard Member Sifton Formation Sikanni Formation Skull Creek Shale Member Smiley Clinobed Smoky (River) Group Snakebite Member Solomon Sandstone Sparky Sand Spikes Zone Spinney Hill Member Spirit River Formation St. Edouard Member St. Eloi Clinobed St. John Formation St. Mary River Formation St. Walburg Sandstone Stockmans Sand Sturrock Member Success Formation Sully Formation Sunburst Sandstone Member Sunkay Member Sunset Sandstone Swan River Formation Taber Sandstone Taft Hill Member Telegraph Creek Formation Thelma Member Thistle Member Tolman Member Torrens Member Tovell Member Tuscoola Member Tussock Member Two Medicine Formation Unnamed Upper Colorado Shale Vanalta Sand Vanesti Tongue Vaughn Member Verdigris Member Vermilion Member Vermilion River Formation Victoria Member Viking Chert Viking Conglomerate Viking Formation Vimy Member Virgelle Member Wabiskaw Member Wainwright Sandstone Walton Creek Member Wapella Sand Wapiabi Formation Wapiti Formation Wartenbe Sandstone Waskahigan Member Waseca Sand Westgate Member Whitemud Formation Whitemud Member White Speckled Shale Wildhorn Member Willow Creek Formation Wilrich Member Young Creek Member

JURASSICAdanac Member Amaranth Formation Balmer Coal Seam Belemnite Zone Black Chert Member Brown Sand Conrad Member Corbula munda Beds Crow Indian Lake Member Elk Formation Ellis Group Fernie Formation (Group) Firemoon Member Gravelbourg Formation Green Beds Grey Beds Gryphaea Bed Gypsum Spring Formation Highwood Member Hillcrest Member Kootenay Group Lille Member Masefield Shale Melita Formation Mist Mountain Formation Moose Mountain Member Morrison Formation Morrissey Formation Mutz Member Nikanassin Formation Nordegg Member Oxytoma Bed Paper Shale Passage Beds Pigeon Creek Member Pine River Formation Piper Formation Poker Chip Shale Poker Formation Red Deer Member Red Jacket Formation Reston Formation Ribbon Creek Member Ribbon Sand Member Rierdon Formation Rock Creek Member Roseray Formation Rush Lake Shale Sawtooth Formation Shaunavon Formation Swift Formation Tampico Member Vanguard Formation (Group) Waskada Formation Watrous Formation Weary Ridge Member

TRIASSICAlder Member Artex Member Baldonnel Formation Bearberry Sand (=Bear Flat) Bear Grass (Bear Flat) Member Blueberry Member Bocock Formation Boundary Member Brewster Limestone Member Cecil Member Charlie Lake Formation Coplin Member Cutbank (Braeburn, Valhalla) Sandstone Dark SiItstones Demmitt Member Diaber (Daiber) Group Doig Formation Ducette Member Farrell Member Flagstones Grayling Formation Grey Beds Groundbirch Member Halfway Formation Hart Pass Formation Inga Member Kobes Member La Glace Member Liard Formation Llama Member Ludington Formation MacKenzie Dolomite Lentil Mica Member Moberly Member/Dolomite Montney Formation Mount Wright Formation Nancy Member North Pine Member Olympus Sandstone Lentil Pardonet Formation Phroso Siltstone Member Schooler Creek Group Septimus Member Siphon Member Spearfish Formation Spray River Group Starlight Evaporite Member Sulphur Mountain Formation Tangent Dolomite Toad Formation Two Rivers Sand Valhalla (Cutbank) Sand Vega Siltstone Member Whistler Member Whitehorse Formation Wilder Member Winnifred Member Worsley (Tangent) Dolomite

PERMIANBelcourt Formation Belloy Formation Chowade Group Fantasque Formation Hanington Formation Ishbel Group Johnston Canyon Formation Kindle Formation Mount Greene Beds Mowitch Formation Ranger Canyon Formation Ross Creek Formation St. Martin Complex Telford Formation

PENNSYLVANIANFording Formation Fortress Mountain Beds Greenoch Formation Kananaskis Formation Misty Formation Norquay Formation Rocky Mountain Group (Formation) Spray Lakes Croup Storelk Formation Storm Creek Formation Taylor Flat Formation Tobermory Formation Todhunter Member Tunnel Mountain Formation (Restricted) Tyrwhitt Formation

MISSISSIPPIANAlida Beds Allan Mountain Formation Auburnton-Huntoon Evaporite Bakken Formation Band Formation Banffian Series Banner (Silt) Member Baril Member Big Snowy Group Carievale Evaporite Carnarvon Member Castle Reef Dolomite Charles Formation Clarks Member Clausen Formation Coleville Member Dando Evaporite Debolt Formation Dessa Dawn Formation Dyson Creek Member Elkton Member Etherington Formation Exshaw Formation Flossie Lake Member Forget-Nottingham Limestone Frobisher Beds Frobisher-Alida Beds Frobisher Evaporite Gainsborough Evaporite Golata Formation Hastings Evaporite Hastings-Frobisher Beds Jasper Lake Member Kibbey Formation Killdeer Beds Kisbey Sandstone Kiskatinaw Formation Livingstone Formation Lodgepole Formation Loomis Member Lower Porous Madison Group Marston Member Mattson Formation Midale Beds Midale Evaporite Middle Dense Mission Canyon Formation Moosehorn Formation Mount Head Formation Opal Member Oungre Evaporite Pekisko Formation Poplar Beds Prophet Formation Queensdale Lime Ratcliffe Beds Ray Member Routledge Shale Facies Rundle Group Salter Member Scallion Member Shunda Formation Souris Valley Beds Stoddart Group Strathallen Beds Sun River Member Tilston Beds Turner Valley Formation Upper Porous Virden Member Whitewater Lake Member Wileman Member Willmar Evaporite Willmar Lime Winlaw Evaporite

DEVONIANAlexandra Member (Formation) Alexo Formation Amco Shale Arcs Member Arnica Formation Ashern Formation Banffian Series Basal Red Beds (Lotsberg) Bear Rock Formation Beaver Member Beaverhill Lake Group (Formation) Bedson Formation Beechy Halite Belle Plaine Member Besa River Formation Biggar Salt Bigoray Member Big Valley Formation Birdbear Formation Bistcho Member Black Creek Member Blackface Mountain Shale Blue Ridge Member Borsato Formation Boule Formation Broadwood Member Buffalo River Member Bull River Unit Burnais Formation Burr Member Cairn Formation Calmar Formation Calumet (Calmut) Member Camrose Member Cardinal Lake Member Carievale Evaporite Cedared Formation Cheviot Formation Chinchaga Formation Chipewyan Member Cynthia Member Christina Member Cinquefoil Formation Cold Lake Formation Contact Rapids Formation Cooking Lake Formation Coronach Formation Costigan Member Cripple Tongue Crossfield Member Crowfoot Formation D1 D2 D3 Davidson Evaporite Davidson Member Dawson Bay Formation Dawson Bay (DB1-DB6 members) Delia Member Dellwood Formation Dinsmore Evaporite Dixonville Member Dunedin Formation Duperow Formation Duvernay Formation Eatonia Evaporite Ebbutt Member Elk Point Group Elm Point Formation Elrose Evaporite Elstow Member Entice Dolomite Ernestina Lake Formation Escarpment Member Esterhazy Member Evie Member Fairholme Group Fiddle Formation Firebag Member First Red Beds Fitzgerald Formation Flat Lake Evaporite Flume Formation Fort Simpson Formation Fort Vermilion Formation Ghost River Formation Gilwood Member Graminia Formation Granite Wash Grosmont Formation Grotto Member Grumbler Group Hare Indian Formation Harris Member Harrogate Formation Hatfield Member Hay Camp Member Hay River Formation Hay River Limestone Holdfast Evaporite Hollebeke Formation Hondo Member Horn River Formation Hubbard Evaporite Ice River Complex Ireton Formation Island River Member Jean Marie (Utahn) Member Jefferson Formation (Group) Kakisa Formation Keg River Formation Kiln Formation Klua Formation Kotcho Formation La Loche Formation Last Lake Member Leduc Formation Leofnard Salt Little Buffalo Formation Livock River Formation Lobstick Member Lonely Bay Formation Lotsberg Formation Louise Falls Member Lyleton Formation Mafeking Member Majeau Lake Member Maligne Formation Manitoba Group Manning Sand Maxim Member McLean River Formation Meadow Lake Formation Meekwap Member Messines Formation

DEVONIAN (continued)Methy Formation Mikkwa Member Mikkwa Formation Mildred Member Mink Member Minnewanka Group Moberly Member Morro Member Morse River Sand Mount Forster Formation Mount Hawk Formation Muncho-McConnell Formation Muskeg Formation Muskwa Member Nahanni Formation Neely Member Nisku Formation Normandville Member Nyarling Formation Otter Park Member Palliser Formation Patience Lake Member Peace Point Member Peechee Member Perdrix Formation Pine Point Formation (Group) Pipestone Formation Point Wilkins Member Potlatch Member Prairie Evaporite Presquile Formation QuAppelle Group Quill Lakes Marker Beds Rainbow Member Ratner Member Redknife Formation Regway Member Roche Miette Formation Ronde Member Rosevear Member Sagemace Member Saskatchewan Group Saskatoon Member Sassenach Formation Second Red Bed Member Seward Member Sharky Member Shell Lake Member Simla Formation Slave Point Formation Smoothstone River Formation Souris River Formation Southesk Formation Spence River Formation Springburn Member Starbird Formation Steen River Formation Stettler Formation Stone Formation Sulphur Point Formation Swan Hills Formation Tathlina Formation Telegraph Member Territories Formation Tetcho Formation Three Forks Group Torquay Formation Trout River Formation Turtle Mountain Group Twin Falls Formation Virginia Hills Formation Vonda Member Wabamun Group Wabasca Member Waterways Formation Watt Mountain Formation Westerdale Member White Bear Marker Beds Whitkow Member Whitelaw Member Winnipegosis Formation Winterburn Group Wokkpash Formation Wolf Lake Member Wolverine Member Woodbend Group Wymark Member Yahatinda Formation Z Marker Zama Member Zeta Lake Member

SILURIANAtikameg Dolomite Brandon Formation Brisco Formation Cedar Lake Formation Chemahawin Member Cross Lake Member East Arm Dolomite Fife Lake Formation Fisher Branch Dolomite Guernsey Formation Hanson Beds Interlake Group (Formation) Inwood Formation Moose Lake Dolomite Nonda (Ronning) Formation Risser Beds Rupert Beds Sandpile Group Strathclair Formation Taylorton Member Tegart Formation

ORDOVICIANBeaverfoot Formation Bighorn (Tyndall) Group Birse Member Black Island Member Carman Sand Cat Head Member Chushina Formation Cloudmaker Formation Coronach Member Deer Island Member Dog Head Member Fort Garry Member Glenogle Formation Gunn Member Gunton Member Hartaven Member Hecla Beds Herald Formation Ice Box Member Lake Alma Member Mirage Point Formation Mons Formation Mount April Formation Mount Wilson Formation Outram Formation Owen Creek Formation Penitentiary Member Red River Formation Redvers Unit Roughlock Member Sarbach Formation Selkirk Member Sinclair Formation Skoki Formation Stonewall Formation Stony Mountain Formation Stoughton Member Survey Peak Formation Tipperary Quartzite Tyndall Stone Whiskey Trail Member Williams Member Winnipeg Formation Wonah Quartzite Yeoman Formation

CAMBRIANAdolphus Formation Albetella Zone Amiskwi Member Arctomys Formation Atan Group Barker Shale Bison Creek Formation Bosche Formation Bosworth Formation Burgess Shale Lentil Burton Formation Canyon Creek Formation Castle Mountain Group Cathedral Formation Chancellor Formation Chephren Member Chetamon Formation Chetang Formation Corona Formation Cranbrook Formation Deadwood Formation Dome Creek Formation Donald Formation Eager Formation Earlie Formation Eldon Formation Elko Formation Fairview Formation Field Member Finnegan Formation Flathead Formation Fort Mountain Formation Gog Formation (Group) Goodsir Formation Gordon Formation Hitka Formation Hota Formation Jonas Creek Formation Jubilee Formation Kechika Group Kinbasket Limestone Lake Louise Shale Lyell Formation Lynx Formation and Group Mahto Formation McKay Group McNaughton Formation Midas Formation Mistaya Formation Mount Selwyn Formation Mount Synge Formation Mount Whyte Formation Mountain Creek Formation Mumm Limestone Mural Formation Murchison Formation Naiset Formation Narao Member Ogygopsis Shale Lentil Ottertail Formation Paget Formation Peyto Formation Pika Formation Ptarmigan Formation Robson Limestones Ross Lake Member Sabine Formation Sawback Formation Sherbrooke Formation Snake Indian Formation Snaring Formation Stephen Formation St. Piran Formation Sullivan Formation Sullivan Quartzite Sunwapta Peak Formation Takakkaw Tongue Tanglefoot Unit Tangle Ridge Formation Tatei Formation Tershishner Member

CAMBRIAN (continued)Thompson Dolomite Titkana Formation Trinity Lakes Member Tsar Creek Formation Wapta Member Waputik Member Waterfowl Formation Weed Member Windsor Mountain Formation

PRECAMBRIANAida Formation Aldridge Formation Altyn Formation Appekunny Formation Appistoki Member Athabasca Formation (Group) Badshot Formation Boulder Pass Formation Byng Formation Carswell (Trout Lake) Format ion Carthew Member Chischa Formation Corral Creek Formation Creston Formation Crowfoot Dyke Cunningham Formation Douglas Formation Dutch Creek Formation Fair Point Formation Fort Steele Formation Galton Series Gataga Formation Gateway Formation George Formation Goathaunt Member Granite Park Member Grinned Formation Haig Brook Formation Hamill Series Hector Formation Hefty Formation Hell Roaring Member Henry Creek Formation Horsethief Creek Group Jasper Formation (Series) Kintla Formation Kitchener Formation Lazenby Formation Lewis Series Locker Lake Formation MacDonald Formation Manitou Falls Formation Meadow Creek Formation Miette Group Miller Peak Formation Misinchinka Group Mount Baker Unit Mount Nelson Formation Mount Rowe Member Nicol Creek Formation Old Fort Point Formation Otherside Formation Phillips Formation Purcell Lava Purcell (Belt) Supergroup Red Gap Member Roosville Formation Scenic Point Member Sheppard Formation Siyeh Formation Siyeh Formation Tetsa Formation Toby Formation Tombstone Mountain Formation Tuchodi Formation Tuma Lake Formation Van Creek Formation Waterton Formation Wigwam Formation Windermere Supergroup Wolverine Point Formation Wynd Formation

Comparison of United States-Canada Nomenclature for Purcell-Belt SupergroupUnited StatesBelt Supergroup Bonner Quartzite Empire Formation Garnet Range Formation Greyson Formation Helena Formation McNamara Formation Missoula Group Mount Shields Formation Piegan Group Ravalli Group Red Plume Quartzite Shepard Formation Snowslip Formation Spokane Formation Werner Peak Formation

CanadaPurcell Supergroup Phillips Formation lower member of Siyeh Formation does not extend to Canadian Border Appekunny Formation middle member of Siyeh Formation Roosville Formation Gateway, Phillips and Roosville Formations and Upper Member of Siyeh Formation Gateway Formation (Restricted) middle member of Siyeh Formation Creston Formation Phillips Formation Sheppard Formation upper member of Siyeh Formation Grinnell Formation lower member of Siyeh Formation

Table of ContentsLexicons of Canadian Stratigraphy PREFACE CONTENTS OF LEXICON BY SYSTEM Comparison of United States-Canada Nomenclature for Purcell-Belt Supergroup Ashville Sand (Ashville Formation, Colorado Group) Assiniboine Member (Favel Formation) Assiniboine Valley Sediments Atan Group Athabasca Formation (William River Subgroup) Athabasca Oil Sands (Athabasca Tar Sands) Athabasca Till Atikameg Dolomite (Interlake Group) Atlas Member (Cantuar Formation) Auburnton-Huntoon Evaporite (Frobisher Beds) (Obsolete)

AAdanac Member (Mist Mountain Formation) Adolphus Formation Aida Formation Aikins Till Alberta Group Albertan Formation Albertella Zone (Obsolete) Alder Member (Charlie Lake Formation, Alderson Member (Lea Park Formation) Aldridge Formation (Purcell Supergroup) Alexander Sandstone (Ellerslie Formation, Mannville Group) Alexandra Member (Formation) (Twin Falls Formation) Alexo Formation (Partly superseded) Alice Creek Tongue (Grand Rapids Formation) Alida Beds (Frobisher-Alida Beds) Allan Mountain Formation (Madison Group) Allison Formation (Obsolete) Altyn Formation (Belt-Purcell Supergroup) Amaranth Formation Amco Shale Amiskwi Member (Stephen Formation) Amundson Member (Cardium) Appekunny Formation (Belt-Purcell Supergroup) Appistoki Member (Appekunny Formation, Aquadell Member (Bearpaw Formation) Arcs Member (Southesk Formation) Arctomys Formation Ardkenneth Member (Bearpaw Formation) Ardley Coal Seam (Edmonton Formation) Arnica Formation Arran Formation Artex Member Ashern Formation (Elk Point Group) Ashville Formation

BBad Heart Formation (Smoky Group) Badshot Formation Bakken Formation Baldonnel Formation (Schooler Creek Group) Balmer Coal Seam (Mist Mountain Formation) Balzac Till (Informal name) Banff Formation (Uppermost Devonian) Banffian Series: (Obsolete) Banffian Serifs (Obsolete) Banner (Silt) Member (Shunda Formation) Bantry Shale Member (Lower Mannville Formation) Baril Member (Mount Head Formation) Barker Shale (Obsolete) Barons Sand (Colorado Group) Basal Colorado Sand (Colorado Group) Basal Quartz (Mannville Group) Basal Red Beds (Lotsberg Formation, Informal name) Baseline Till Bassano Member (Bearpaw Formation) Bassano South Sandstone (Bearpaw Formation) Battle Formation Battleford Formation Baytree Member (Cardium Formation Smoky Group) Bearberry Sand Bear Grass (Bear Flat) Member

Bear Rock Formation Bearpaw Formation, Montana Group Beattie Peaks Formation (Minnes Group) Beaudette Group (Abandoned) Beaver Member Beaverfoot Formation Beaverhill Lake Group (Formation) Beaver Mines Formation (Blairmore Group) Bedford Formation (Informal name) Bedson Formation (Obsolete) Beechy Halite (Hatfield Member, Beechy Member (Bearpaw Formation) Belair Drift (Informal) Belanger Member (Bearpaw Formation) Belcourt Formation (Ishbel Group) Belemnite Zone (Fernie Formation, Superseded) Belle Fourche Shale Member (Ashville Formation) Belle Plaine Member (Prairie Formation, Elk Point Group) Belloy Formation (Ishbel Group) Belly River Formation (Group) Benton Shale (Colorado Group) (Abandoned in Canada) Berland River Shales (Obsolete) Besa River Formation Bickerdike Member (Cardium Formation) Bickford Formation (Minnes Group) Biggar Salt (Disused) Bighill Creek Formation Bighorn Formation (Obsolete) Bighorn (Tyndall) Group Bigoray Member (Nisku Formation) Big River Formation (Colorado Group, Cretaceous) Big Snowy Group Big Valley Formation Birch Lake Member (Judith River Formation) Birdbear Formation (Saskatchewan Group) Birse Member (Stony Mountain Formation, Disused) Bison Creek Formation Bistcho Member Black Chert Member (Fernie Formation, Superseded) Black Creek Member Black Eagle Member (Bearpaw Formation) Blackface Mountain Shale (Obsolete)

Black Island Member (Winnipeg Formation) Blackleaf Formation (Colorado Group) Blackmud Member (Edmonton Group, Disused) Blackstone Formation (Alberta Group) Blairmore Group (Formation) Blood Reserve Formation Blueberry Member (Charlie Lake Formation, Schooler Creek Group) Blue Ridge Member Bluesky Formation Babcock Formation (Schooler Creek Group) Boissevain Formation Bonanza Sandstone (Peace River Formation, Obsolete) Bonnyville Formation (Informal) Bootlegger Member (Blackleaf Formation) Borradaile Member (Mannville Formation, Disused) Borsato Formation (Fairholme Group) Bosche Formation (Abandoned) Bosworth Formation (Obsolete) Boulder Creek Formation (Fort St. John Group) Boulder Pass Formation (Purcell-Belt Supergroup, Abandoned) Boule Formation (Obsolete) Boundary Member (Charlie Lake Formation) Bow Island Formation (Colorado Group) Bow Valley Till Bowdoin Sandstone Boyne Member Boyne Sand Brandon Formation (Interlake Group) Brazeau Formation Brenot Formation Brewster Limestone Member (Whitehorse Formation) Bridge River Tephra Brisco Formation (Abandoned) Broadwood Member (Alexo Formation) Brocket Till Broderick Member (Bearpaw Formation) Bronson Lake Formation (Informal) Brosseau Member (Judith River Formation, Abandoned) Brown Lime Submember Brown Sand (Fernie Formation, superseded) Buckinghorse Formation (Fort St. John Group) Buffalo Lake Till Buffalo River Member

Buick Creek Sand (Gething Formation) Bullhead Group Bull River Unit (Invalid) Bulwark Sandstone (Bearpaw Formation) Bulwell Member Burgess Shale Lentil (Stephen Formation) Burnais Formation Burnstick Member (Cardium Formation) Burr Member (Dawson Bay Formation, Manitoba Group) Burton Formation (Abandoned) Byng Formation (Miette Group)

CCadomin Formation (Blairmore and Bullhead Groups) Cadotte Member (Peace River Formation) Cairn Formation (Fairholme Group) Calahoo Sandstone (Ellerslie Member) Calcareous Member (Blairmore and Mannville Formation, Group) Calgary Silt (Informal name) Calmar Formation (Winterburn Group) Calumet (Calmut) Member Cameron Sand Camrose Member (Ireton Formation, Woodbend Group) Canmore Till Cantuar Formation Canyon Creek Formation Carbon Gas Sandstone (Upper Mannville) Cardinal Member (Cardium Formation, Alberta Group) Cardinal Lake Member (Wabamun Formation) Cardium Formation (Alberta Group) Cardium Zone Member (Cardium Formation) Carievale Evaporite (Frobisher Beds) (Obsolete) Carlile Shale (Colorado Group) Carman Sand (Member or Lentil, Winnipeg Formation) Carnarvon Member (Mount Head Formation) Carrot Creek Member (Cardium Formation) Carswell (Trout Lake) Formation Carthew Member Cartwright Till (Informal name) Castle Reef Dolomite (Madison Group) Castle Mountain Group (Obsolete)

Cat Head Member (Red River Formation) Cathedral Formation Cecil Member (Charlie Lake Formation, Schooler Creek Group) Cedared Formation Cedar Lake Formation (Interlake Group) Cessford Sand (Colorado Group) Chain Lakes Clays and Silts Chancellor Formation Charles Formation (Madison Group) Charlie Lake Formation (Schooler Creek Group) Chemahawin Member (Cedar Lake Formation) Chephren Member (Mount Whyte Formation) Chetamon Formation (Abandoned) Chetang Formation Cheval Beds (Abandoned) Cheviot Formation (Obsolete) Chinchaga Formation Chinook Member (Wapiabi Formation) (Obsolete) Chipewyan Member (Muskeg Formation) Chischa Formation Chowade Croup (Redundant) Christina Member (Beaverhill Lake (Waterways) Formation) Chungo Member (Wapiabi Formation, Alberta Group) Chushina Fermation (Abandoned) Cinquefoil Formation (Obsolete) Claggett Formation (Montana Group) Clarks Member Clausen Fonnation Clearwater Formation (Mannville Group) Cloudmaker Formation Coal Sand (Blairmore Group) Coalspur Beds (Saunders Group) Coldharbor Formation Coleville Member (Bakken Formation) Colony Sand (Joli Fou Formation) (Colorado Group) Colorado Group Commotion Formation Comrey Member (Oldman Formation) Condie Till Cone Member (Marias River Shale) Conrad Member (Sawtooth Formation, Ellis Group) Contact Rapids Formation Cooking Lake Formation (Woodbend Group)

Coplin Member (Charlie Lake Formation) Corbula Munda Beds (Fernie Formation) Corona Formation (Abandoned) Coronach Formation (Obsolete) Coronach Member (Herald Formation) Corral Creek Formation (Miette Group) Cosmos Sand (Disused) Costigan Member (Palliser Formation) Coulter Member (Pierre Shale) Cranbrook Formation Crassier Group (Abandoned) Creston Formation (Purcell Supergroup) Cripple Tongue (Mount Hawk Formation) Crooked Hole Sand (Blairmore Group) Crossfield Till (Informal) Crossfield Member (Stettler Formation/ Wabamun Group) Cross Lake Member Crowfoot Dyke Crowfoot Formation (Winterburn Group) Crow Indian Lake Member (Disused) Crowsnest Formation CrukShank Member, Bearpaw Formation Cruiser Formation Crystal Clinobed (Viking Formation, Colorado Group) Cummings Member (Clearwater Formation, Mannville Group) Cunningham Formation (Cariboo Group) Cutbank (Braebum, Valhalla) Sandstone Cut Bank Sandstone Cynthia Member (Nisku Formation) Cypress Hills Formation Cypress Hills Loess (Informal narne)

DD-1 (Redundant; superseded by Wabamun Group) D-2 (Nisku Formation) D-3 (Leduc Formation) Dakota Formation and Group Dalhousie Conglomerate (Blairmore Group) Dando Evaporite (Mission Canyon Formation, Madison Group) Dark Siltstones (Obsolete) Darling Sand (Kootenai Formation, Disused) Davidson Evaporite

Davidson Member (Souris River Formation, Manitoba Group) Dawson Bay Formation (Manitoba Group) Dawson Bay Formation (Manitoba Group) Deadhorse Coulee Member Deadwood Formation Debolt Formation Deer Island Member (Winnipeg Formation) Del Bonita Gravels Delia Member (Abandoned) Dellwood Formation (Disused) Demaine Member (Bearpaw Formation) Demmit Member (Charlie Lake Formation) Deserters Canyon Till (Informal name) Dessa Dawn Formation (Obsolete) Detrital (Deville) Beds (Mannville Group) Deville Formation (Detrial) Diaber (Daiber) Group Dimmock Creek Member (Cantuar Formation) Dina Member (McMurray Formation, Mannville Group) Dinsmore Evaporite (Wymark Member, Dismal Rat Member Dixonville Member (Wabamun Formation) Doe Creek Member Dog Head Member (Red River Formation) Doig Formation Dokie Ridge Member Dome Creek Formation (Cariboo Group) Donald Formation Douglas Formation Dowling Merrier (Wapiabi Formation, Alberta Group) Dorothy Bentonite (Bearpaw Formation) Dorothy Sandstone (Bearpaw Formation) Dresser Formation (Abandoned) Drumheller Marine Tongue Drystone Creek Till Drywood Soil Ducette Member (Baldonnel Formation) Dunedin Formation Dunlevy Formation (Bullhead Group) Obsolete Dunvegan Formation Duperow Formation Dutch Creek Formation (Purcell Supergroup) Duvenay Formation Dynneson Sandstone Dyson Creek Member (Rundle Fomation) (Obsolete)

EEager Formation Eagle Formation (Montana Group) Earlie Formation East Arm Dolomite (Interlake Group) Eastend Formation Eatonia Evaporite (Wymark Member, Ebbutt Member (Willow Lake Formation) Echo Lake Gravel Edmonton Formation (Group) Edson Till Eisenhower Junction Till Eldon Formation (Eldon Dolomite) Elk Formation (Kootenay Group) Elko Formation Elk Point Group Elkton Member (Turner Valley Formation) Elkwater Drift Ellerslie Member (Mannville Group) Ellis Group Elm Point Formation (Elk Point Group) Elrose Evaporite (Wymark Member, Duperow Elstow Member (Duperow Formation, Saskatchewan Group) Empress Group (Formation) Entice Dolomite (Waterways Formation, Entrance Conglomerate (Coalspur Beck) Ernestina Lake Formation Ernst Till Erratics Train Till Escarpment Member (Hay River Formation) Esterhazy Member (Prairie Evaporite, Elk Point Group) Ethel Lake Formation (Informal) Etherington Formation (Rundle Group) Etzikom Drift Evie Member (Horn River Foundation) Expanse Formation (Informal name) Exshaw Formation

FFairholme Group Fair Point Formation Fairview Formation (Obsolete) Falher Member (Spirit River Formation) Fantasque Formation

Farrell Member (Charlie Lake Formation, Schooler Creek Group) Favel Formation Ferdig Member (Marias River Shale) Fernie Formation (Group) Fiddle Formation (Obsolete) Field Member (Eldon Formation) Fife Lake Formation (Interlake Group) Finnegan Formation Firebag Member (Beaverhill Lake (Waterways) Formation) Firemoon Member (Piper Formation) First Castor Sandstone (Bearpaw Formation) First Red Beds (Souris River Formation) First White Speckled Shale Fisher Branch Dolomite (Interlake Group) Fish Scale Sandstone Fitzgerald Formation Flagstones (Obsolete) Flat Lake Evaporite Flathead Formation Flaxville Formation Flood Member (Blackleaf Formation) Floral Formation Flossie Lake Member Flotten Lake Sand (Colorado Group) Floweree Member (Marias River Shale) Flume Formation (Fairholme Group) Foothills Series (Obsolete) Foraging Formation (Obsolete) Foremost Formation Forget-Nottingham Limestone Fort Augustus Formation (Mannville Group, disused) Fort Garry Member (Red River Formation) Fort Mountain Formation Fort Nelson Formation (Abandoned) Fort Simpson Formation Fort Steele Formation (Purcell Supergroup) Fort St. John Group Fort Vermilion Formation (Member) Fortress Mountain Beds (Kananaskis Formation) Fox Hills Formation (Abandoned in Canada) Frenchman Formation Frobisher Beds (Frobisher-Alida Beds) Frobisher-Alida Beds Frobisher Evaporite (Midale Beds) Furman Till (Informal name)

GGainsborough Evaporite (Alida Beds) Galton Series (Abandoned) Gammon Ferruginous Shale (Pierre Shale) Garbutt Formation (Fort St. John Group) Garden Plain Tuff Gataga Formation Gates Formation Gateway Formation (Purcell Supergroup) General Petroleum (G.P.) Sand George Formation Gething Formation (Bullhead Group) Ghost River Formation (Abandoned) Gilwood Member (Watt Mountain Formation) Glacier Peak Tephra Gladstone Formation (Blairmore Group) Glauconitic Sandstone (Mannville Group) Glenogle Formation Glenwoodville Drift (Informal name) Goathaunt Member (Obsolete; Siyeh Formation) Gog Formation (Group) Golata Formation Goodlands Member (Turtle Mountain Formation) Goodrich Formation (Fort St. John Group) Goodsir Formation (Abandoned) Gordon Formation Gorman Creek Formation (Minnes Group) Graminia Formation (Winterburn Group) Grande Cache Member (Malcolm Creek Formation) Grand Centre Formation (Informal) Grand Rapids Formation (Mannville Group) Granite Park Member (Siyeh Formation, Obsolete) Granite Wash Gravelbourg Formation Grayling Formation (Obsolete) Green Beds (Fernie Formation) Greenhorn Lime Greenoch Formation (Redundant) Grey Beds (Fernie Formation) Grey Beds (Obsolete) Grinnell Formation (Purcell Belt Supergroup) Grit Bed (Blackstone Formation) Grizzly Bear Member (Lea Park Formation) Grosmont Formation (Woodbend Group)

Grotto Member (Southesk Formation) Groundbirch Member (Charlie Lake Formation, Schooler Creek Group) Grumbler Group (Formation) Grunthal Formation (Informal name) Gryphaea Bed (Fernie Formation) Guernsey Formation (Interlake Group) Gunn Member Gunton Member (Stony Mountain Formation) Gypsum Spring Formation

HHaig Brook Formation (Purcell Supergroup) Halfway Formation Hamill Series Hamilton Lake Sand Hand Hills Formation Hanington Formation (Obsolete) Hanson Beds (Interlake Group) Hanson Member (Wapiabi Formation, Alberta Group) Hare Indian Formation Harmon Member Harris Member (Souris River Formation, Manitoba Group) Harrogate Formation Hartaven Member (Stony Mountain Formation) Hart Pass Formation (Obsolete) Hasler Formation Hastings Evaporite (Frobisher-Alida Beds) Hastings-Frobisher Beds (Obsolete) Hatfield Member (Souris River Formation, Manitoba Group) Haven Member (Blackstone Formation) Hay Camp Member Hay River Formation Hay River Limestone (Obsolete) Hazel Formation (Informal name) Hecla Beds Hector Formation (Miette Group) Hefty Formation (Galton Series) (Abandoned) Hell Creek Formation (Montana Group) Hell Roaring Member Henry Creek Formation Herald Formation (Bighorn Group) Hidden Creek Hill Highwood Member (Fernie Formation)

Highwood Sandstone (Chungo Member) Hillcrest Member (Mist Mountain Formation) Hitka Formation (Abandoned) Holdfast (Flat Lake) Evaporate Hollebeke Formation (Fairholme Group) Home Sand (Blairmore Group) Hondo Member (Grosmont Formation) Hoosier Clinobed Hornbeck Member (Cardium Formation) Horn River Formation Horseshoe Canyon Formation (Edmonton Group) Horsethief Sandstone Horsethief Creek Group (Windermere Supergroup) Hota Formation Howard Creek Member Howell Creek Intrusives Hubbard Evaporite Hulcross Formation (Fort St. John Group) Hummingbird Till

Jubilee Formation Judith River Formation Jumping Pound Member (Jumping Pound, Jungle Ridge)

KKakisa Formation Kakwa Member (Cardium Formation) Kananaskis Formation (Spray Lakes Group) Karr Member (Cardium Formation) Kaskapau Formation (Smoky Group) Kechika Group Keg River Formation (Upper Elk Point Group) Keld Member (Favel Formation) Kennedy Drift Kevin Member (Marias River Shale) Kibbey Formation (Big Snowy Group) Killdeer Beds (Madison Formation) Kiln Formation (Obsolete) Kimball Drift (Informal name) Kinbasket Limestone Kindle Formation Kintla Formation (Lewis Series, abandoned) Kipp Sandstone (Bearpaw Formation) Kisbey Sandstone Kishenehn Formation Kiska Member (Cardium Formation, Alberta Group) Kishtinaw Formation Kitchener Formation (Purcell Supergroup) Klua Formation Kneehills Tuft (Edmonton Formation) Kobes Member (Charlie Lake Formation, Schooner, Creek Group) Kootenai Formation Kootenay Group Kotaneelee Formation Kotcho Formation

IIce Box Member (Winnipeg Formation) Ice River Complex Inga Member (Charlie Lake Formation) Interlake Group (Formation) Inwood Formation (Interlake Group) Inyan Kara Group Ireton Formation (Woodbend Group) Irvine Bed (Glacier Peak Tephra) Ishbel Group Island River Member (Invalid) Islay Member (Mannville Formation) (Disused)

JJackfish Creek Till Jasper Formation (Series) Jasper Lake Member (Shunda Formation) (Obsolete) Jean Marie (Utahn) Member Jefferson Formation (Obsolete) Johnston Canyon Formation Joli Fou Formation (Colorado Group) Jonas Creek Formation (Obsolete)

LLabiche Formation Labuma Till Lax du Bonnet Formation (Informal) La Glace Member (Charlie Lake Formation, Schooler Creek Group)

Lake Agassiz Clays Lake Alma Member (Herald Formation) La Loche Formation Lake Louise Shale Lamoral Till Lander Sand (Kootenai Formation) Largs Formation Last Lake Member (Wabamun Formation) Laurier Limestone Beds (Keld Member) Lazenby Formation Lea Park Formation Leduc Formation (Woodbend Group) Leinan Till Lennard Formation Lenzie Silt Leofnard Salt (Elk Point Group) (Disused) Lepine Formation (Fort St. John Group) Lethbridge Drift Lethbridge Member (Oldman Formation) Lewis Series (Abandoned) Leyland Member (Cardium Formation, Alberta Group) Liard Formation (Schooler Creek Group) Libau Drift (Informal) Lille Member (Fernie Formation) Lineham Member (Obsolete) Little Buffalo Formation Livingstone Formation (Rundle Group) Livock River Formation Lama Member (Sulphur Mountain Formation) Lloydminster Formation (Superseded) Lloydminster (Lloyd) Sand Lobstick Member (Nisku Formation) Lochend Till (Informal) Locker Lake Formation Lodgepole Formation (Madison Group) Lonely Bay Formation Looma Member (Grand Rapids Formation) (Obsolete) Loomis Member Loon River Shale (Fort St. John Group) (Obsolete) Lotsberg Formation (Elk Point Group) Louise Falls Member (Hay River Formation) Lower Porous Lowland Gravel Ludington Formation (Schooler Creek Group) Luscar Formation (Obsolete) Lyell Formation

Lyleton Formation [QuAppelle, (Three Forks) Group] Lynx Formation and Group (Revised)

MMa Butte Formation (Blairmore Group) MacDonald Formation (Galton Series) (Abandoned) MacGowan Concretionary Bed Mackenzie Dolomite Lentil (Vega Siltstone Member) Madison Group Mafeking Member (Damson Bay Formation) Magrath Sandstone (Bearpaw Formation) Mahto Formation (Gog Group) Majeau Lake Member (Cooking Lake Formation, Woodbend Group) Malcolm Creek Formation Maligne Formation (Fairholme Group) Manitoba Group Manitou Falls Formation Manning Sand (Watt Mountain Formation) (Obsolete) Mannville Group Manyberries Member (Bearpaw Formation) Manyberries Volcanic Ash Marchand Formation Marco Calcarenite (Assiniboine Member) Marguerite Till (Informal) Marias River Shale (Colorado Group) Marie Creek Formation (Informal) Marlboro Till Marsh Creek Till Marshybank Member (Wapiabi Formation, Alberta Group) Marston Member (Mount Head Formation) Martin Sandy Zone Marysville Sands Masefield Shale (Formation) Matador Member (Bearpaw Formation) Mattson Formation Maunsell Till Maxim Member Mayberne Till Maycroft Till Mazama Tephra (Galata Ash, Bighill Spring Ash)

McDougall-Segur Conglomerate McKay Group McLaren Member (Mannville Group) McLean River Formation (Elk Point Group) (Superseded) McLeod Member (Kootenay Formation) (Obsolete) McCloud Member (Cantuar Formation) McMurray Formation (Mannville Group) McNaughton Formation (Gog Group) Meadow Creek Formation (Miette Group) Meadow Lake Formation (Elk Point Group) Medicine Hat Sandstone Medicine Lodge Member (Bearpaw Formation) Meekwap Member (Nisku Formation, Winterburn Group) Melita Formation Merrington Clinobed Messines Formation (Obsolete) Methy Formation (Upper Elk Point Subgroup) Mica Member Midale Beds Midale Evaporite (Ratcliffe Beds) Midas Formation (Cariboo Group) Middle Dense Midnapore Silts Miette (Formation) Group Mikkwa Member (Muskeg Formation) Mikkwa Formation Mildred Member [Beaverhill Lake (Waterways) Formation] Milk River Formation Mill Creek Formation (Obsolete) Miller Peak Formation Millwood Member (Pierre Shale) Mink Member (Muskeg Formation) Minnedosa Formation Minnes Group Minnewanka Group (Obsolete) Mirage Point Formation Misinchinka Group Mission Canyon Formation (Madison Group) Mistaya Formation Mist Mountain Formation (Kootenay Group) Misty Formation Misty Till (Informal) Mitchell Bluff Formation Moberly Member (Beaverhill Lake Waterways) Formations

Moberly Member/Dolomite Monach Formation (Minnes Group) Mons Formation (Obsolete) Montana Group Monteith Formation (Minnes Group) Montney Formation Moosebar Formation (Fort St. John Group) Moosehorn Formation (Obsolete) Moosehound Member (Cardium Formation, Alberta Group) Moose Lake Dolomite (Interlake Group) Moose Mountain Member (Morrissey Formation) Morden Shale Morley Till (Informal) Morrison Formation Morrissey Formation (Kootenay Group) Morro Member (Palliser Formation) Morse River Sand (Superseded) Mosby Sandstone (Greenhorn Formation, Colorado Group) Moulton Member Mount April Formation Mount Baker Unit (Purcell Supergroup) (abandoned) Mount Forster Formation Mount Greene Beds (Ishbel Group) Mount Hawk Formation (Fairholme Group) Mount Head formation Mount Nelson Formation (Purcell Supergroup) Mount Rowe Member, Mount Selwyn Formation Mount St. Helens Set Y Tephra Mount Synge Formation (Abandoned) Mount Whyte Formation Mount Wilson Formation Mountain Creek Formation Mount Wright Formation (Schooner Creek Group) Mountain Park Formation Mowitch Formation Mowry Shale Formation (Colorado Group) Mulga Tongue (Lea Park Formation) Mumm Limestone (Abandoned) Muncho-McConnell Formation Mural Formation (Gog Group, Cariboo Group) Murchison Formation (Abandoned) Muriel Lake Formation (Informal) Muskeg Formation

Muskiki Member (Wapiabi Formation, Alberta Group, and Muskwa Formation Musreau Member (Cardium Formation) Mutz Member (Mist Mountain Formation) Myrtle Creek Formation (Abandoned)

NNahanni Formation Naiset Formation Nancy Member (Charlie Lake Formation, Schooler Creek Group) Narao Member (Stephen Formation) Neely Member (Dawson Bay Formation, Manitoba Group) Nevis Member (Edmonton Group) (Disused) Newcastle Formation (Colorado Group) Newcastle Sandstone Member (Ashville Formation) Nicol Creek Formation (Purcell Supergroup) Nikanassin Formation Niobrara Formation Nisku Formation (Winterburn Group) Nomad Member (Wapiabi Formation, Alberta Group) Nonda (Ronning) Formation Nordegg Member (Fernie Formation) Normandville Member (Wabamun Formation) Norquay Formation (Obsolete); North Pine Member (Charlie Lake Formation, Schooler Creek Group) Nosehill Member (Cardium Formation) Notikewin Member (Spirit River Formation) Nunki Sandstone (Kaskapau Formation) Nyarling Formation

Olympus Sandstone Lentil (Starlight Evaporite Member) Opabin Member (Blackstone Formation and Kaskapau Formation) Opal Member (Mount Head Formation) Ostracod Beds (Mannville Group) Ostrea Shale (Obsolete) OSullivan Member (Mannville Formation) (Disused) Otherside Formation Otter Park Member (Horn River Formation) Ottertail Formation Oungre Evaporite (Ratcliffe beds) Outlook Member, Bearpaw Formation Outram Formation Owen Creek Formation Oxarart Member (Bearpaw Formation) Oxytoma Bed (Nordegg Member, Fernie Formation)

PPaddy Member (Peace River Formation) Paget Formation (Obsolete) Paintearth Member (Bearpaw Formation) Pakan Formation (Abandoned) Pakowki Drift Pakowki Formation Pale Beds (Variegated and Pale Beds) (Obsolete) Palliser Formation Paper Shale (Fernie Formation) (Superseded) Pardonet Formation (Schooler Creek Group) Paskapoo Formation (Saunders Group in Foothills) Passage Beds (Fernie Formation) Patience Lake Member (Prairie Evaporite, Elk Point Group) Peace Garden Member (Turtle Mountain Formation) Peace Point Member (Waterways Formation) Peace River Formation (Fort St. John Group) Peechee Member (Southesk Formation) Pekisko Formation (Rundle Group) Pekisko Till (Informal) Pelican Formation (Colorado Group) Pembina Member (Pierre Shale) Pembina Mountain Group (Obsolete)

OObed Till Odanah Member (Pierre Shale) Ogygopsis Shale Lentil (Stephen Formation) Okla Sandstone (Big River Formation, Colorado Group) Old Fort Point Formation (Middle Miette Group) Quaternary (Classical Wisconsin) Oldman Formation

Pembina River Member (Cardium Formation) Penitentiary Member (Stony Mountain Formation) Pense Formation Perdrix Formation (Fairholme Group) Peyto Formation (Member) Phillips Formation (Purcell Supergroup} Phillips Sandstone Phroso Siltstone Member Pierre Shale Pigeon Creek Member (Fernie Formation) Pika Formation Pine Point Formation (Group) Pine River Formation (Abandoned) Piper Formation Pipestone Formation (Obsolete) Pocaterra Creek Member (Blairmore Group) Point Wilkins Member Poker Chip Shale (Fernie Formation) Poker Formation (Fernie Group) Poplar Beds Porcupine Hills Formation Porcupine Till (Informal) Portage Mountain Till (Informal) Potlatch Member (Three Forks Formation) Pouce Coupe Member Prairie Evaporite (Prairie Formation, Elk Point Group) Prelate Ferry Paleosol Presquile Formation Prophet Formation Provost Member Ptarmigan Formation (Ptarmigan Limestone) (Abandoned) Purcell Lava (Purcell Supergroup) Purcell (Belt) Supergroup Puskwaskau Formation (Smoky Group)

RRainbow Member (Keg River Formation) Ram Member (Cardium Formation, Alberta Group) Ranger Canyon Formation Ratcliffe Beds Ratner Member (Winnipegosis Formation, Elk Point Group) Raven Creek Till Raven River Member (Cardium Formation) Ratner Member (Winnipegosis Formation, Elk Point Group) Raven Creek Till Raven River Member (Cardium Formation) Ravenscrag Formation Upper Ravenscrag (Ravenscrag Formation) Lower Ravenscrag (Frenchman Formation) Ray Member (Kibbey Formation) Red Gap Member (Grinnell Formation, Obsolete) Red Deer Member (Fernie Formation} Red Jacket Formation Redknife Formation (Grumbler Group) Red River Formation (Bighorn Group) Red Speck Zone (Vaughn Member, Blackleaf Formation) Redvers Unit (Herald Formation) Regina Clay Regway Member (Winnipegosis Formation, Elk Point Group) Residual Zone Reston Formation Rex Sand (Lower Grand Rapids Formation, Mannville Group) Ribbon Creek Member (Fernie Formation) Ribbon Sand Member (Swift Formation, Ellis Group) Ribstone Creek Member (Judith River Formation) Ricinus Member (Cardium Formation) Riddell Member (Floral Formation) Riding Mountain Formation Rierdon Formation (Ellis Group) Risser Beds (Interlake Group) Roaring River Clay Robson Limestones (Obsolete) Roche Miette Formation (Obsolete)

QQuAppelle Alluvium QuAppelle Group (Disused) Queensdale Lime (Frobisher-Alida Beds, Informal) Quill Lakes Marker Beds (Prairie Evaporite, Elk Point Group)

Rock Creek Member (Fernie Formation) Rocky Mountain Group/Formation (Redundant) Ronde Member (Southesk Formation) Roosville Formation (Purcell Supergroup) Rosa Formation (Informal) Roseau Formation Roseray Formation Rosevear Member Ross Creek Formation (Ishbel Group) Ross Lake Member (Ross Lake Shale, Cathedral Formation) Roughlock Member (Winnipeg Formation) Rouleau Clay Routledge Shale Facies (Lodgepole Formation) Rundle Group Rupert Beds (Interlake Group) Rush Lake Shale (Formation) (Vanguard Group) Ryegrass Sandstone (Bearpaw Formation)

SSabine Formation Saddle Hills Conglomerate Sage Hen Limestone Sagemace Member Salter Member (Mount Head Formation) Sandpile Group Sand River Formation (Informal) Sarbach Formation (Obsolete) Saskatchewan Gravels Saskatchewan Group Saskatoon Group Saskatoon Member Sassenach Formation Saunders Group Sawback Formation (Obsolete) Sawridge Formation (Obsolete) Sawtooth Formation (Ellis Group) Scallion Member (Lodgepole Formation) Scatter Formation (Fort St. John Group) Scenic Point Member Schooler Creek Group Scollard Formation Second Castor Sandstone (Bearpaw Formation) Second Red Bed Member Second White Specks Sandstone Second White Speckled Shale (Colorado Group)

Selkirk Member (Red River Formation) Senkiw Formation Septimus Member (Charlie Lake Formation, Schooler Creek Group) Seward Member Shaftesbury Formation (Fort St. John Group) Shandro Member (Lea Park Formation) (Abandoned) Sharky Member (Muskeg Formation) Shaunavon Formation Sheep River Silts and Clays Shell Formation Shell Lake Member (Prairie Evaporite, Elk Point Group) Sheppard Formation (Purcell Supergroup) Sherbrooke Formation (Obsolete) Sherrard Member, Bearpaw Formation Shunda Formation (Rundle Group) Sifton Formation Sikanni Formation (Fort St. John Group) Simla Formation Sinclair Formation (Obsolete) Siphon Member (Charlie Lake Formation, Schooler Creek Group) Siyeh Formation (Purcell Supergroup) Siyeh Formation (Map Unit 5, Leech, 1960) Skoki Formation Skull Creek Shale Member (Ashville Formation) Slave Point Formation Smiley Clinobed (Viking Formation, Colorado Group) Smoky (River) Group Smoothstone River Formation (Elk Point Group, Disused) Snakebite Member (Bearpaw Formation) Snake Indian Formation Snaring Formation Solomon Sandstone (Obsolete) Souris River Formation (Manitoba Group) Souris Sand and Gravel (Informal) Souris Valley Beds (Madison Group) Southesk Formation (Fairholme Group) Sparky Sand (Lower Grand Rapids Formation, Mannville Group) Spearfish Formation Spence River Formation Spikes Zone (Big River Formation, Colorado Group) Spinney Hill Member

Spirit River Formation (Fort St. John Group) Sprague Formation (Informal) Spray Lakes Group Spray River Group Springburn Member (Beaverhill Lake Formation and Group) Spy Hill Till (Informal) Starbird Formation Starlight Evaporite Member (Whitehorse Formation) Steen River Formation (Obsolete} Stephen Formation (Stephen Shale) Stettler Formation St. Edouard Member (Joli Fou Formation, Colorado Group) St. Eloi Clinobed (Viking Formation, Colorado Group) St. Eugene Formation St. John Formation (Disused) St. Malo Formation (Informal) St. Martin Complex (Series) St. Mary River Formation St. Piran Formation St. Walburg Sandstone Stimson Creek Till (Informal) Stockmans Sand (Blairmore Group) Stoddart Group Stone Formation Stonewall Formation Stony Mountain Formation (Bighorn Group) Storelk Formation (Spray Lakes Group) Storm Creek Formation Stoughton Member (Stony Mountain Formation) Strathallen Beds (Madison Formation) Strathclair Formation (Interlake Group) Strathcona Sand and Silt Stuartburn Formation (Informal) Sturrock Member (Cardium Formation, Alberta Group) Success Formation Sullivan Formation Sullivan Quartzite (Invalid) Sully Formation (Fort St. John Group) Sulphur Mountain Formation (Spray River Group) Sulphur Point Formation Sunburst Sandstone Member Sunkay Member Sun River Member (Castle Reef Dolomite)

Sunset Sandstone Sunwapta Peak Formation Survey Peak Formation Sutherland Group Swan Hills Formation (Beaverhill Lake Group) Swan Hills Gravels Swan River Formation Sweetgrass Hills Dykes Swift Current Creek Beds Swift Formation (Ellis Group) Sylvan Lake Till

TTaber Sandstone Tableland Gravel Taft Hill Member (Blackleaf Formation) Takakkaw Tongue (Cathedral Formation) Tampico Member (Piper Formation) Tangent Dolomite (Superseded) Tanglefoot Unit Tangle Ridge Formation (Abandoned) Tatei Formation Tathlina Formation (Grumbler Group) Taylor Flat Formation Taylorton Member (Interlake Group) Tee Lakes Formation Tegart Formation Telegraph Member (Muskeg Formation) Telegraph Creek Formation (Montana Group) (Informal) Telford Formation (Ishbel Group) Territories Formation Tershishner Member (Pika Formation) Tetcho Formation Tetsa Formation Thelma Member (Bearpaw Formation) Thistle Member (Wapiabi Formation, Alberta Group) Thompson Dolomite (Obsolete) Three Forks Group Tilston Beds Timber Creek Till (Informal) Tipperary Quartzite Titkana Formation Toad Formation (Obsolete) Tobermory Formation Toby Formation (Winderemere Supergroup)

Todhunter Member (Etherington Formation) Tofield Sand Tolman Member (Edmonton Group) (Disused) Tolstoi Formation (Informal) Tombstone Mountain Formation (Purcell Supergroup) Torquay Formation (Three Forks Group) Torrens Member Tovell Member (Mannville Formation) (Disused) Trinity Lakes Member (Cathedral Formation) Trout River Formation Tsar Creek Formation Tuchodi Formation Tuma Lake Formation Tunnel Mountain Formation Turner Valley Formation (Rundle Group) Turtle Mountain Formation Turtle Mountain Group (Obsolete) Tuskoola Sandstone (Kaskapau Formation, Smoky Group) Tussock Member Twin Cliffs Formation Twin Falls Formation Two Medicine Formation (Montana Group) Two Rivers Sand Tyndall Stone Tyrwhitt Formation (Spray Lakes Group)

Viking Chert (Viking Formation, Colorado Group) Viking Conglomerate Viking Formation (Colorado Group) Vimy Member Virden Member (Lodgepole Formation) Virgelle Member (Eagle Formation, Montana Group) Virginia Hills Formation (Informal) Vista Formation (Informal) Vonda Member (Prairie Evaporate, Elk Point Group)

WWabamun Group (Formation) Wabasca Member (Muskeg Formation) Wabiskaw Member (Clearwater Formation) Wainwright Sandstone (Sparky Formation Walsh Drift Walton Creek Member Wapella Sand (Informal) Wapiabi Formation (Alberta Group) Wapiti Formation Wapta Member (Stephen Formation) Waputik Member (Stephen Formation) Wartenbe Sandstone (Kaskapau Formation, Smoky Group) Wascana Creek Ash (Pearlette Tephra) Waseca Sand (Grand Rapids Formation, Mannville Group) (Informal) Wasada Formation Waskahigan Member (Cardium Formation) Waterfowl Formation Waterton Formation (Purcell Supergroup) Waterways Formation Watrous Formation Watt Mountain Formation Weary Ridge Member (Morrissey Formation) Weed Member (Mount Whyte Formation) Wellsch Valley Tephra Westerdale Member (Ireton Formation, Woodbend Group) Westgate Member (Ashville Formation) Whiskey Trail Member (Beaverfoot Formation) Whistler Member (Sulphur Mountain Formation) White Bear Marker Beds/Member Whitehorse Formation (Spray River Group)

UUnnamed Upper Colorado Shale (Colorado Group) Upper Porous

VValhalla (Cutbank) Sand Vanalta Sand (Disused) Van Creek Formation (Purcell Supergroup) Vanesti Tongue (Lea Park Formation) Vanguard Formation (Group) Vaughn Member (Blackleaf Formation) Vega Siltstone Member Verdigris Member (Foremost Formation) Vermillion Member (Bearpaw Formation) (Invalid) Vermilion River Formation Victoria Member

Whitelaw Member (Wabamun Formation) Whitemouth Lake Formation Whitemud Formation Whitemud Member (Edmonton Group) (Disused) Whiteshell Formation White Speckled Shale Whitewater Lake Member Whitkow Member (Prairie Evaporite, Elk Point Group) Whoop up Formation (Informal) Wigwam Formation (Galton Series) (Abandoned) Wilder Member (Charlie Lake Formation, Schooler Creek Group) Wildhorn Member Wildhorse Drift Wileman Member (Mount Head Formation) Williams Member (Stony Mountain Formation) Willmar Evaporite (Frobisher-Alida Beds) (Informal) Willmar Lime (Frobisher-Alida Beds) (Informal) Willow Creek Formation Wilrich Member (Spirit River Formation) Windermere Supergroup Windsor Mountain Formation Winlaw Evaporite (Frobisher-Alida Beds) Winnifred Member (Whitehorse Formation) Winnipeg Formation Winnipegosis Formation (Elk Point Group) Winterburn Group Wintering Hills Gravels (Informal) Wokkpash Formation Wolf Island Sediments Wolf Lake Member (Nisku Formation) Wolverine Member (Muskeg Formation) Wolverine Point Formation Wonah Quartzite (Obsolete) Woodbend Group Woodmore Formation (Informal) Wood Mountain Beds Worsley (Tangent) Dolomite (Charlie Lake Formation) Wymark Member Wymark Till Wynd Formation (Miette Group)

YYahatinda Formation Yeoman Formation (Bighorn Group) Young Creek Member (Bearpaw Formation)

ZZ Marker (Woodbend Group) Zama Member Zelena Formation Zeta Lake Member (Nisku Formation) REFERENCES

Upper Jurassic Adanac Member (Mist Mountain Formation)Author: Norris, D.K., 1959. Type Locality: South face of Grassy Mountain, 8 km (5 mi) north of Blairmore, Alberta, along main haulage road between Grassy No. 2 and Grassy No. 4 coal pits (Norris, 1959; Hughes, 1978). NTS Map 82G/9 Blairmore. History: Unit recognized and named by Norris 11959) as a member of the Kootenay Formation; now included within the lower Mist Mountain Formation (Gibson 1979, 1985). Lithology: Medium dark grey to black carbonaceous shale, medium grey, fine grained sandstone and coal. At Grassy Mountain top of the member is characterized by No. 4 Grassy Mountain coal seam. Thickness and Distribution: The Adanac is a locally recognized member of the Mist Mountain Formation in the Crowsnest Pass area of the southwestern Alberta Foothills east of the Lewis Thrust, and in the area adjacent to and south of Blairmore and Coleman as far as the Adanac Strip Mine (Gibson 1977, 1985). The member ranges in measured thickness from a minimum of 20 m (66 ft) at Grassy Mountain to 31 m (102 ft) on York Creek south of Coleman. Relationship to Other Units: The unit is conformably overlain by fine to medium grained sandstone with interbeds of black silty mudstone and siltstone of the Hillcrest Member. At Grassy Mountain the upper contact is placed at top of No. 4 seam. The Adanac is conformably underlain by carbonaceous, micaceous, medium grey, fine grained quartz and chert sandstone of the Moose Mountain Member of the Morrissey Formation. References: Gibson, 1977, 1979, 1985; Hughes, 1978; Norris, 1959.

DWG

Lower Upper Cambrian Adolphus FormationAuthor: Burling, L.D., 1923, p. 741-743. Type Locality: Mumm Peak (southeast spur), on Alberta-British Columbia boundary north of Robson Pass and 9 km 5.6 mi) due north of Mount Robson. History: Burling replaced the Hota Formation of Walcott (1918) with the Adolphus because he though that Walcott had mis-correlated the Hota of the type section with the Mural. Mountjoy (1962) and others used the term Hota-Adolphus for Hota on the basis of historical priority. Thickness and Distribution: 122 m (400 h) of limestone cliffs in Mumm Peak; thought by Burling to be Middle Cambrian. Relationship to Other Units: Conformably overlies the Mahto Formation and is overlain by the Chetang Formation along a distinct, sharp contact. Paleontology: Scattered Lower Cambrian trilobites belonging to the upper part of the Bonnia-Olenellus Zone; (although originally considered to be Middle Cambrian by Burling, 1923). References: Burping, 1923, 1955; Mountjoy, 1962, 1980; Mountjoy and Fritz, 1975; Walcott, 1913, 1928.

EWM

?Helikian Aida FormationAuthor: Bell, R.T., first use 1966, first published 1968. Type Locality: on the southeast flanks of Mount Aida, in the Tuchodi Lakes (94K) map area, northeastern British Columbia. Geographic co-ordinates of the type section: base of section: 581130N, 1243815W top of section: 581130N, 1243945WThe type section is incomplete because of sub-Cambrian erosion; reference sections designated for the poorly exposed base have the geographic co-ordinates 580745N, 1243230W, and for the complete top of the sequence 580445N, 1244245W.

Lithology: A thick succession of very light brown and light grey weathering, slaty-cleaved, calcareous and dolomitic mudstones with minor siltstones and fine grained, graded sandstones. Two hundred metres (656 ft) above the base of the formation a green chamositic mudstone unit 60 m (197 ft) thick overlain by 65 m (213 ft) of black, carbonaceous mudstone constitute a persistent marker unit. Much of the upper two thirds of the Aida is a sequence of well developed rhythmites with partial Bouma sequences. Thickness and Distribution: The formation is exposed in a belt from the confluence of the Toad and West Toad Rivers in the Tuchodi Lakes (94K) map-area to Muskwa River in northern Ware (94F) maparea. Near the type section on Mount Aida the formation is 1000 m (3280 ft) thick; near Mount Churchill it is slightly more than 2000 m (6560 ft) thick Relationship to Other Units: Conformably overlies the Tuchodi Formation and is conformably overlain by the Gataga Formation. Over much of its exposure area the formation has been partially truncated by sub-Cambrian erosion. References: Aitken, 1975; Bell, 1966,1968; Taylor and Stott, 1973.

GCT

Quaternary Aikins TillAuthor: Christiansen, E.A., 1959, p. 33. Type Locality: North bluff of Swift Current Creek near Aikins, Saskatchewan, in Lsd. 1 of Sec. 24, Twp. 15, Rge. 14W3M. Lithology: A clay-loam till that is calcareous, montmorillonitic, plastic, and mostly unoxidized; pale brown where oxidized, otherwise light greyish brown; properties of the Aikins Till resemble those of the Wymark and Leinan Tills. Thickness and Distribution: In the Swift Current area, where it is present north of the Wymark Till it is 4 to 12 m (13 to 39 ft) thick (Christiansen, 1959). Found also in the Kindersley area (Christiansen, 1965). Relationship to Other Units: Lies between the middle and lower stratified-drifts; north of the Clearwater Lake Moraine it is covered by the Leinan Till; south of that moraine it is exposed or else covered by middle stratified drift; this is the till that directly overlies the Prelate Ferry Paleosol (Christiansen, 1965, p. 23) and so would appear to correlate with the Battleford Formation and the Condie Till. The unit is the second youngest till in the Swift Current area, and appears to be of Wisconsin age. The name has not been much used in recent years, but if this unit can be traced to the Battleford Formation and Condie Till, as appears probable, the name Aikins Till would appear to have priority over both. References: Christiansen, 1959, 1965; Greer and Christiansen, 1963.AMacSS

Lower to Upper Cretaceous (Albian to Campanian) Alberta GroupAuthor: Hume, G.S., 1930, p. 6B. Type Locality: The name was originally applied in the Highwood River area, and a composite section can be viewed along the Highwood River (Twp. 15, Rge. 3W5M) (Stott, 1963). History: Hume introduced the term Alberta shales for strata previously referred to as Benton. Webb and Hertlein (1934) raised it to group status. Clow and Crockford (1951) used the term Alberta Formation in southeastern Alberta. The term Alberta Group is equivalent in part to the Colorado Group and to the lower Montana Group. Lithology: Predominantly dark grey, silty mudstone. A prominent sandstone sequence (Cardium Formation) in the middle of the group lies between two thick shale successions, the underlying Blackstone Formation and overlying Wapiabi Formation. Individual members of the shale formations are characterized by silty mudstone with sideritic concretions or calcareous shales with thin beds of argillaceous limestone. Thickness and Distribution: The group is present along the southern and central foothills and adjacent plains from the International Boundary in the south to the Athabasca River in the north, where equivalent beds are included in the Smoky Group. At the Highwood River the group is about 609.6 m (2000 ft) thick. In the Bighorn Basin, north of the North Saskatchewan River the thickness is in the order of 1219.2 m (4000 ft). Relationship to Other Units: The group lies with marked disconformity, and with some evidence of erosional unconformity on the Lower Cretaceous Blairmore and Luscar Groups throughout most of the foothills, and on the volcanic Crowsnest Formation in southwestern Alberta. Stratigraphic equivalents are the Colorado Group and Lea Park Formation in southern Alberta and the Smoky Group in northern Alberta and British Columbia.Paleontology: Characterized by ammonites and pelecypods, ranging from at least the Cenomanian Dunveganoceras Zone to probably younger than the Santonian Desmoscaphites Zone (Stott, 1963). A sequence of eleven generalized microfaunal zones were recognized (Wall and Germundson, 1963). References: Clow and Crockford, 1951; Hume, 1930; Stott, 1963; Wall and Germundson, 1963; Webb and Hertlein, 1934. DFS

Quaternary (Pleistocene) Albertan FormationAuthors: Dawson, G.M. and McConnell, R.G., 1895, p. 66. Type Locality: Bow Valley near Calgary, Alberta (Dawson and McConnell, 1895, p. 59); not further specified. Lectostratotype Locality: Here designated as the Brocket Section on the left (northwest) bank of Oldman River about 7 km (4.4 mi) northeast of Brocket, Alberta, in S/2 of Sec. 34, Twp. 7, Rge. 28W4M (493610N, 1134230W), where it forms the deposits lying directly above bedrock (Stalker, 1963, p. 30). Lithology: Till, gravel and sand. The formation consists of 2 members, as suggested by Dawson (1895, p. 510): The Albertan Formation to comprise both the western boulder-clay and the derived Saskatchewan gravels. A third, higher member may be present elsewhere, as at the Kipp Section (Stalker, 1972, p. 70-72). At the lectostratotype site the bottom member consists mainly of outwash sand and coarse, commonly angular or sub-round till gravel. It is overlain with gradational contact by a member consisting of indurated silty and sandy, very stony till that forms a steep cliff face with a tendency towards columnar structure. The till coarsens eastward, where it shows more water working. At Brocket the till is light brown or buff, south of the Oldman Valley commonly pink or purplish. The possible upper member at Kipp consists of coarse, poorly sorted gravel overlying the till of the middle member with gradational contact. The formation consists of material derived locally or from the Rocky Mountains and is characterized by a lack of stones from the Canadian Shield. Thickness and Distribution: At the lectostratotype section the bottom member is 2 m (7 ft) thick, the till member 4.5 m (15 ft); at Kipp the till member is 2 m (7 ft), the overlying gravel 3 m (10 ft) or more thick. Much greater thicknesses undoubtedly occur in some of the prairie preglacial valleys. Widely distributed in south and central Alberta, particularly near the mountain front, and into western Saskatchewan, but in many places destroyed by subsequent glaciation and river action. The till member disappears east of Kipp. Relationship to Other Units: Overlies bedrock or, with gradational contact earlier river gravels that are difficult to separate from it (see Saskatchewan Gravels). Overlain eastward with sharp contact by the Labuma Till or the Twin Cliffs Formation, from which it is readily distinguished by its lack of Shield stones and light color. In the western foothills and mountains overlain by younger tills, valley train and alluvium. The unit is the earliest glacial deposit recognized in southwestern Alberta, but probably represents the same glaciation that later laid down the Labuma Till and Twin Cliffs Formation. Dawson (1895, p. 510) suggested that: The western boulder-clay must represent an epoch of glaciation antecedent to the Kansan., but it is now generally assigned to the Illinoian age (Stalker and Harrison, 1977, p. 885). It may represent a glaciation between and separate from the Kansan and Illinoian glaciations as generally recognized. Probably contemporaneous with part of the Saskatchewan Gravels, and eastward apparently grades into these. May include the Kennedy Drift and Baseline Till, if so the name Albertan Formation has priority. This formation apparently represents the largest Quaternary Cordilleran glaciation in the Rocky Mountains and Foothills, and it should correspond to the Great Cordilleran (Waterton 1) Advance of Stalker and Harrison (1977). It undoubtedly laid down the highest Cordilleran drift found in the Foothills, and also that extending farthest east onto the Plains.

References: Dawson, 1895; Dawson and McConnell, 1895; Horberg, 1952, 1954; Stalker, 1963, 1972; Stalker and Harrison, 1977.AMacSS

Middle Cambrian Albertella Zone (Obsolete)Author: van Hees, H., 1959. Type Locality: Unspecified, but by implication the California Standard Parkland 4-12-15-27W4M well, in southern Alberta. History: The Albertella Zone was recognized only by van Hees (1959, 1964), who viewed it as a division of the Cathedral Formation (in more recent work, it would be part or all of the Mount Whyte Formation). In three successive publications on the Cambrian of Alberta Pugh (1971, 1973, 1975) made no mention of it. Lithology: Fine grained marine siliciclastics, characterized by high radioactivity. Thickness and Distribution: Thickness about 30 m (98 ft). From the westernmost wells in the undeformed basin, extending eastward and passing into basal Cambrian sandstone west of the Alberta-Saskatchewan boundary; and northward, passing into sandstone by about Twp. 38. Relationship to Other Units: van Hees (1959, 1964) apparently viewed the Albertella zone as a faunizone, but extended it by Ra-log correlation from the fossiliferous interval of the Parkland well. On the data of van Hees and later workers however, the unit appears instead to be a diachronous, unusually radioactive muddy facies separating nearshore sandstones from offshore limestones of the Cathedral Formation. The term has not been used in formal publication since 1964. Paleontology: The unit yielded the Middle Cambrian trilobite Albertella sp. at the Parkland 4-12 well, but is probably younger than that, though still Middle Cambrian eastward and northward. References: Pugh, 1971, 1973, 1975; van Hees, 1959, 1964.JDA

Upper Triassic Alder Member (Charlie Lake Formation, Schooler Creek Group) (Superseded)Author: Torrie, J.E., 1973, p. 170. Reference Section: Pacific Fort St. John 2-18-84-19W6M, in northeastern British Columbia, between 1344.5 and 1346 m (4411 and 4416 ft): grey anhydrite equivalent (Siphon Member). History: This name has been used in the Currant, Crush and Bulrush areas of British Columbia for the Siphon Member of the Charlie Lake Formation (Hess, 1968). Union Oil used Alder for the Cecil Member of the Charlie Lake Formation. Lithology: Sandstone. Thickness: 1 to 2 m (3 to 7 ft) thick. References: Hess, 1968; Torrie, 1973.JWR, KAM

Upper Cretaceous (Campanian) Alderson Member (Lea Park Formation)Authors: Meijer Drees, N.C. and Myhr, D.W., 1981; p. 42-74. Type Locality: Meijer Drees and Myhr (1981) stated that the type section lies between 253.5 and 338.3 m (832 and 1110 ft) in the ARCO Alderson 10-4-15-10W4M well in southeastern Alberta. Lithology: The member consists of grey to dark grey bioturbated, silty, montmorillonitic shale with laminated lenses and interbeds of very fine grained, silty sandstone. Scattered greyish green bentonitic shale beds, chert pebble beds and beds containing siderite nodules are present. The sand content increases from the base upward. Thickness and Distribution: The thickness of the Alderson Member in southeastern Alberta is fairly constant, ranging from 85 to 91 m (279 to 299 ft). The member thins northward to about 70 m (230 ft) at Twp. 50. The southwestern limit of the member is defined by the appearance of the Virgelle Member (Meijer Drees and Myhr 1981) of the Milk River Sandstone. The northeastern limit of the Alderson Member is defined by the last occurrence of the thin pebble bed at the top which grades basinward (northeast) into a laminated shale facies. Relationship to Other Units: The top of the member is conformable, being marked by a chert pebble bed, however there is no significant change in mechanical log character between the overlying upper Lea Park and the Alderson. The basal contact is Conformable and transitional on mechanical logs, but lithologically can be picked by the appearance of the first or upper White Speckled Shale. To the southwest the Alderson is equivalent to the Deadhorse Coulee, Virgelle and Telegraph Creek members of the Milk River Formation. In Montana this succession equates to the upper, middle and Virgelle members of the Eagle Formation as well as the Telegraph Creek Formation. In central and southern Saskatchewan the Alderson is equated with the lower portion of the Lea Park, and in Manitoba with the Pembina Member of the Pierre Shale (formerly Vermillion River Formation). In the central Alberta Foothills the Chungo and Hanson Members of the Wapiabi are of equivalent age. References: Meijer Drees and Myhr, 1981.RLM

Middle Proterozoic Aldridge Formation (Purcell Supergroup)Author: Schofield, S.J., 1914a, p. 221. Type Locality: Near Kingsgate, southeastern British Columbia. History: Daly (1912) assigned strata near Kingsgate to his Kitchener Formation, which he defined as overlying his Creston Formation, but Schofield (1912) showed that they were older not younger than the Creston Formation and proposed that they be called the Aldridge Formation (Schofield, 1914a, p. 221). Lithology: The Aldridge consists of rusty weathering, grew fine grained quartzite and argillaceous quartzite, grey siltite and dark grey argillite are the dominant and characteristic rock types. In the Purcell Mountains the lower part consists of rusty weathering, laminated, thinly bedded, light colored, very fine grained quartzite, argillaceous quartzite and siltite, with minor black argillite partings. Crossbedding is common, and scour and fill structures occur but are rare (Reesor, 1958). These grade into the middle part, which is a sequence characterized by light weathering, thin to thick bedded, light colored, fine grained quartzite and argillaceous quartzite interbedded with laminated, rusty weathering, grey siltite and black argillite. Intraformational debris-flow conglomerates and large scale convolutions of bedding occur locally. Quartzite beds commonly grade to dark grey siltite in the top few centimetres and many have flute or load casts at their base. Ripple-drift cross lamination occurs locally. These quartzites are interpreted to be turbidite deposits (Bishop et al., 1970, Edmunds, 1973). In the Hughes Range north of Fort Steele the middle part of the Aldridge Formation consists of laminated and cross laminated siltite; laminated dark grey argillite, and minor quartzite (Hoy 1978); but in the Lizard Range very rusty weathering, laminated siltite, massive siltite and rare quartzite (McMechan, 1979) occur beneath the light weathering quartzite unit. In all of these areas the upper part of the formation consists of rusty weathering, laminated siltite and dark argillite. Mud-cracked, interlaminated dolomite and green siltite occur near the top of the formation in the Lizard Range. Hornblende metagabbro sills and dykes are abundant in the lower parts of the formation. Thickness and Distribution: Extends from north of Kimberley, British Columbia to south of Missoula, Montana. Because the base of the formation is only exposed very locally the thickness is generally unknown. In Canada the known thickness ranges from 2100 m (6890 ft) for the entire formation in the Hughes Range, to 4000 to 5000 m (13120 to 16400 ft) with the base not exposed in the Purcell Mountains. The Aldridge Formation is the host for the Sullivan stratiform Ag-Pb-Zn deposit at Kimberley. Relationship to Other Units: The Aldridge conformably overlies the Fort Steele Formation in the Hughes Range, but elsewhere the base is not exposed. It is conformably overlain by the Crouton Formation or the Ravalli Group (in the United States). The Prichard Formation is its United States equivalent. The Aldridge Formation has been correlated with the Altyn and Waterton Formations of the Clark Range (Price, 1964). References: Bishop et al., 1970; Daly, 1905, 1912; Edmunds, 1973; Huebschman, 1973; Hoy, 1978, Leech, 1958; McMechan, 1978, 1979; Price, 1964a; Reesor, 1958, 1973; Rice, 1937, 1941; Schofield, 1912, 1914a, 1914b, 1915.RAP

Lower Cretaceous (Albian) Alexander Sandstone (Ellerslie Formation, Mannville Group)Author: First used by wellsite geologists for a sand at the top of the Ellerslie Member in the immediate area of Alexander Indian Reserve No. 134. It was later described by Jackson and Bourns (1968). Type Locality: Mid-Western Calahoo 6-1-55-27W4M, in Alberta, between 1155.5 and 1158.5 m (3790 and 3800 ft). Lithology: Mainly fine to medium grained quark sandstone, containing numerous fossil fragments, a few coal inclusions, with fair to good porosity. Thickness and Distribution: Restricted to the immediate Alexander Indian Reserve No. 134 area centred in Twp. 56, Rge. 27W4M. The thickness varies from zero to 8.5 m (28 ft). Relationship to Other Units: The Alexander Sandstone is a sandstone unit occurring within the uppermost Ellerslie Formation and the lower part of the Ostracode Zone. It is overlain by Ostracode shale. It is separated from the underlying Calahoo Sandstone, another sandstone unit within the Ellerslie Formation, by a 2 m (7 ft) thick shale unit. References: Jackson and Bourns, 1968.GEB; KEJ

Upper Devonian (Frasnian) Alexandra Member (Formation) (Twin Falls Formation)Author: Crickmay, C. H., 1953. Type Locality: Alexandra Falls, on the Hay River, District of Mackenzie, at 6030N, 11616W. The base of the member is 2 m (7 ft) above the base of the falls. History: First used without definition by Crickmay (1952); re-defined by Crickmay (1957). Status revised to Alexandra Member by Belyea and McLaren (1962), who excluded the upper 11 m (36 ft) of Crickmays definition from the member. Lithology: Principally limestone, with minor interbeds of shale, sandstone and siltstone. Biostromal. Thickness and Distribution: The Alexandra Member is 30.8 m (101 ft) thick at the type section and 21.3 m (70 ft) at Briggs Tathlina Lake No. 3 borehole (604929.49N, 1173909.56W). It is present in the Hay River-Tathlina Lake area. Relationship to Other Units: The Alexandra Member is the lowest member of the Twin Falls Formation and conformably overlies the Hay River Formations. It is overlain by an unnamed upper member of the Twin Falls Formation. On Hay River it corresponds approximately to map unit 17 (Douglas, 1959) and to Douglass map units 17 and 18 and the upper part of 15 on Kakisa River. West of Tathlina Lake it grades into the Fort Simpson Formation. References: Belyea and McLaren, 1962; Crickmay, 1952, 1953, 1957; Douglas, 1959.LVH; PAM

Late Devonian (Famennian) Alexo Formation (Partly superseded)Authors: deWit, R. and McLaren, D.J., 1950. Type Locality: North Saskatchewan River Gap, north side, where the river cuts through the Brazeau Range. Located 15 km (9 mi) southeast of Nordegg, Alberta. Lat. 5226N, Long. 11554W. History: The formation, named after the village of Alexo, Alberta was erected by deWit and McLaren (1950) to include all the silty carbonate beds between the top of the Southesk and Mount Hawk Formations and the base of the Palliser Formation. A minor thickness revision was made by McLaren (1955), who also divided the formation informally into upper and lower members. Further paleontologic (McLaren, 1959) and stratigraphic studies in the Jasper region led McLaren and Mountjoy (1962) to revise the formation nomenclature for that area. They designated the lower Alexo as the Ronde Member of the Southesk Formation and the upper Alexo as the Sassenach Formation. The term Alexo Formation is therefore no longer applied in the mountains north of the type section, but is used to the south where the stratigraphy of this interval has not been fully elucidated and is possibly due for revision. Lithology: The Alexo Formation is informally divided into two members (McLaren 1955). The lower member consists of interbedded dolomite and silty and argillaceous dolomites, grading up through laminated siltstones and silty dolomites to thick bedded, vuggy grey dolomite. The basal part of this member weathers thin bedded and somewhat recessive. The upper member is composed of laminated, thin to medium bedded grey and green-grey argillaceous siltstones and silty dolomites. Small penecontemporane