5

2

3

7

9

8

7

47

26

10

26

39

87 7821

20

20

14

75 44

8140

7227

78 12

2920

2212

6522

32

20

81

78

13

31

70

2266

72

74

8443

75

28

77

282733

85

788287

71

83 73

79

8676

59

70

74

85

69

78

64

7467

86

81

66

64

79

79

7388

82

74

73

59

5883 77

85

8155

75

78 86

55 74 63

727877

787786

71

7676

34

5537

8033

21

37

24

35

27

76

51

8345

71

79 6982 71

69

79

62

62

5953

59

778179

78

74

17

13

7324

10 8128

39

77

31

84

82

71

37

73

80

5949

79

79

4085

75

67

Cgr

Cg

Lg

Cgr

QdCg

Qdp

Lg

Dpp

Qdp

QdaQdp

QdCg

Qda

LgQd

Lg

Lg

Qdp

Cg

Lg

LgQdQda

Qda

Qdp

Qdp

LgQd

Qdp

Qda

Qda

Cgr

Qda

Qda

Qdp

QdCg

Lg

QdCg

QdpLg

Lg

Cgr

Lg

Cgr

Lg

Lloyd Lake

Lloyd Lake

Gibson Bay

Ferrie Peninsula

Clearwater River

Clearwater River

258000

258000

260000

260000

262000

262000

264000

264000

266000

266000

268000

268000

270000

270000

272000

272000

274000

274000

276000

276000

6358

000

6358

000

6360

000

6360

000

6362

000

6362

000

6364

000

6364

000

6366

000

6366

000

108°45'0"W

108°45'0"W

109°0'0"W

109°0'0"W

57°20'0"N

57°20'0"N

Catalogue Number 2009-4.2-(2.3)

This Map

Location Map

Lake

Lake

Lake

Lake

Lake

Lake

Lake Kelic

Careen

TurnorHeddery

Ithingo

Preston

Wasekamio

Lloyd Lake

Black Birch

074F02 074F01

074F07 074F08

074B13

074F06

074C15 074C16

074G04074F03

074G05

074C14

074C10 074C09074C11 074B12 074B11

074G12074F09

074B14

074G03

074G06

074F10 074G11074F05

-108°

-108°

-109°

-109°

57°57°

Scale 1:20 000

Accompanying Sheets

Legend Symbols

Inclined axial plane, third generation Inclined foliation, first generation Inclined foliation, third generation Inclined foliation, fourth generation Intersection lineation, third generation Z fold, third generation Regional trends of S1 foliation interpreted from foliation measurements and aeromagnetic images Lineament (presumed brittle-ductile fault) Geological contact Swamp Contour (10m interval)

Reconnaissance Bedrock Geology, Eastern Lloyd Lake (Parts of NTS areas 74F06 and 07) at 1:20 000 scale

Preliminary Geological Map (2009)

by C.D. Card

Lg

Cg

0 0.5 1 1.5 20.25Kilometres

0 0.25 0.5 0.75 10.125Miles

The area was mapped by C.D. Card in the summer of 2009. This map was printed from the geologist’s digital file. Geological data were processed using ArcPad 7.0.1, Microsoft Access, and ArcView 9.3 software. Base maps were compiled from 1:50 000 scale digital topographic maps licensed from Saskatchewan Information Services Corporation. Grid coordinates are NAD 83 UTM zone 13. The map was processed overall using ArcView 9.3 software. Radiometric data included in the legend were measured using Radiation Solutions RS-230 handheld spectrometers. Measurements are reported as equivalent values, e.g. eTh. The map is available on the internet at www.er.gov.sk.ca. The map accompanies the following report: Card, C.D. (2009): Cree South Project 2009: Reconnaissance bedrock mapping in the Lloyd Domain and Virgin River Shear Zone; in Summary of Investigations 2009, Volume 2, Saskatchewan Geological Survey, Sask. Ministry of Energy and Resources, Misc. Rep. 2009-4.2. This map may be referenced as: Card, C.D. (2009): Reconnaissance bedrock geology, eastern Lloyd Lake (parts of NTS 74F06 and 07), 1:20 000 scale prelim. map with Summary of Investigations 2009, Volume 2, Saskatchewan Geological Survey, Sask. Ministry of Energy and Resources, Misc. Rep. 2009-4.2.

Qt Glacial drift and outwash

UNCONFORMITY D3 deformation, M2 metamorphism (amphibolite facies)

Lg Leucogranite: white to pink, medium grained, seriate; massive to weakly foliated (S3); forms centimetre- to metre-scale sheets parallel to the S1 foliation in other units; 1-5% biotite ± magnetite; eTh1 generally 50-140 ppm; eK generally 1-5%.

LgQd Comprises relatively equal proportions of units Lg and Qd.

INTRUSIVE CONTACT

D1-D2 deformation, M1 metamorphism (granulite facies)

Cg Charnockitic granite: pink, waxy on fresh surfaces, medium to coarse grained, seriate; weakly to moderately foliated (S1 and S3); 5-10% pyroxene ± biotite ± magnetite; local layers of Qdp and pyroxene-bearing tonalite.

Cgr Retrogressed charnockitic granite: pink, fine to medium grained; strongly foliated

to mylonitic; 5-10% biotite ± magnetite; commonly mixed with and difficult to distinguish from unit Lg.

Quartz diorite to diorite (ca. 1985 Ma2)

Qda Retrogressed quartz diorite to diorite: grey, medium grained, equigranular; moderately to strongly foliated; 15-30% biotite after pyroxene ± relict pyroxene ± hornblende ± magnetite; local layers of retrogressed tonalite and retrogressed granodiorite.

Qdp Pyroxene-bearing quartz diorite to diorite: grey on weathered surface, dark grey to

blue on fresh surfaces, granular, medium grained; poorly to moderately developed, flat-lying S1 and near upright S3 foliations, plagioclase-rich melt layers; quartz diorite end member most common; 30-40% combined clinopyroxene and orthopyroxene, blue grey plagioclase and quartz ± biotite ± magnetite; local layers of units pyroxene-bearing tonalite.

QdCg Mixed chanockitic granite and quartz diorite to diorite: comprises about equal proportions of

units Cg and Qd.

INTRUSIVE CONTACT

Dpp Pelitic diatexite: white to rusty, medium-grained ground mass with garnet porphyroblasts up to 5 mm in diameter; weak compositional layering; moderately to strongly foliated; 5% garnet porphyroblasts, 3-15% biotite, 0-5% sillimanite in patches and centimetre-scale layers, 1-3% graphite; derived through nearly complete to complete melting of psammopelitic to pelitic protoliths, rare xenoliths of psammite and diatexitic psammopelite to pelite occur in unit Qd. 1 K, U and Th values referred to in this report are equivalent concentrations measured on an RS-230, hand-held spectrometer. 2 SHRIMP U-Pb zircon age determination. Stern, R.A., Card C.D., Pana, D. and Rayner, N. (2003): SHRIMP U-Pb ages of granitoid basement rocks of the southwestern part of the Athabasca Basin, Saskatchewan and Alberta; in Radiogenic age and Isotopic Studies, Rep. 16, Geol. Surv. Can., Curr. Res. 2003-F, 20p.

Although the Ministry of Energy and Resources has exercised all reasonable care in the compilation, interpretation, and production of this item, it is not possible to ensure total accuracy, and all persons that rely on the information contained herein do s o at their own risk. The Ministry of Energy and Resources and the Government of Saskatchewan do not accept liability for any errors, omissions or inaccuracies that may be included in or derived from, this item.

LgQd

Cgr

Qd

Qdp

Qda

QdCg

Dpp