.01

0.1

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

2.0

3.0

4.0

5.0

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470

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510

520

530

540

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560

570

4000 +

(Scale change)

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E

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I

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A

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E

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N

E

O

G

E

N

E

P

A

L

E

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G

E

N

E

C

R

E

T

A

C

E

O

U

S

J

U

R

A

S

S

I

C

TRIASSIC

PERMIAN

CARBONIFEROUS

DEVONIAN

SILURIAN

ORDOVICIAN

C

A

M

B

R

I

A

N

P

L

E

I

S

T

O

C

E

N

E

HOLOCENE

PLIOCENE

MIOCENE

OLIGOCENE

EOCENE

PALEOCENE

UPPER

LATE

UPPER

UPPER

UPPER

UPPER

UPPER

UPPER

LATE

LATE

LATE

LATE

LATE

LATE

LOWER

LOWER

LOWER

LOWER

LOWER

LOWER

EARLY

EARLY

EARLY

EARLY

EARLY

EARLY

MIDDLE

MIDDLE

SE

NO

NIA

N

LOWER

EARLY

NE

OC

OM

IAN

UPPER

LATE

MA

LM

MIDDLE

DO

GG

ER

LOWER

EARLY

LIA

S

UPPER

LATE

MIDDLE

LOWEREARLY

UPPER

LATE

LOWER

EARLY

UPPER

LATE

MIDDLE

LOWER

EARLY

UPPER

LATE

MIDDLE

LOWER

EARLY

UPPER

LATE

LOWER

EARLY

UPPER

LATE

MIDDLE

LOWER

EARLY

UPPER

LATE

MIDDLE

LOWER

EARLY

STAGE

VERSILIAN

TYRRHENIAN

SICILIAN

CALABRIAN

PIACENZIAN

ZANCLEAN

MESSINIAN

TORTONIAN

SERRAVALIAN

LANGHIAN

BURDIGALIAN

AQUITANIAN

CHATTIAN

RUPELIAN

PRIABONIAN

BARTONIAN

LUTETIAN

YPRESIAN

THANETIAN

DANIAN

MAASTRICHTIAN

TOMMOTIAN

ATDABANIAN

LENAN

SOLVAN

LLANDEILIAN

LLANVERNIAN

ARENIGIAN

TREMADOCIAN

DOLGELLIAN

MENEVIAN

MAENTWROGIAN

FESTINIOGIAN

SIEGENIAN

GEDINNIAN

EMSIAN

PRIDOLIAN

LUDLOVIAN

WENLOCKIAN

LLANDOVERIAN

ASHGILLIAN

CARADOCIAN

NAMURIAN

VISEAN

TOURNAISIAN

FAMENNIAN

FRASNIAN

GIVETIAN

EIFELIAN

ASSELIAN

TATARIAN

KAZANIAN

KUNGURIAN

ARTINSKIAN

SAKMARIAN

STEPHANIAN

WESTPHALIAN

SINEMURIAN

ANISIAN

RHAETIAN

NORIAN

CARNIAN

LADINIAN

SCYTHIAN

HETTANGIAN

PLIENSBACHIAN

TOARCIAN

AALENIAN

BAJOCIAN

HAUTERIVIAN

VALANGINIAN

BERRIASIAN

OXFORDIAN

CALLOVIAN

BATHONIAN

PORTLANDIAN

KIMMERIDGIAN

SANTONIAN

CONIACIAN

TURONIAN

CENOMANIAN

BARREMIAN

APTIAN

ALBIAN

CAMPANIAN

RUFAH RUFAH

SHA’AL SHA’AL

DAM

AJF

AR

HOFUF

HADRUKH

DAMMAM

RUS

UMM ER RADHUMA UMM ER RADHUMA

ARUMA ARUMA

ARUMA ARUMA

D I R

’ I Y

A

H

D I R

’ I Y

A

H

WASIA WASIA

TH

AM

AM

A

TH

AM

AM

ABIYADH BIYADH

BUWAIB BUWAIB

YAMAMA YAMAMA

SULAIY SULAIY

HITH HITH

SH

AQ

RA

SH

AQ

RA

JUBAILA JUBAILA

HANIFA HANIFA

TUWAIQ TUWAIQ

ARAB ARAB

DHRUMA DHRUMA

UPPER UPPER

MIDDLE MIDDLE

LOWER LOWER

UNIT 3 UNIT 3UNIT 2 UNIT 2UNIT 1 UNIT 1

UNIT 7-D7 UNIT 7-D7

UNIT 6-D6 UNIT 6-D6UNIT 5-D5 UNIT 5-D5

UNIT 2-D2 UNIT 2-D2

UNIT 1-D1 UNIT 1-D1

MARRAT MARRATUPPER UPPERMIDDLE MIDDLE

BU

RA

YD

AH

BU

RA

YD

AH

MINJUR MINJUR

JILH JILH

SUDAIR SUDAIR

KHUFF KHUFF

UNAYZAH UNAYZAH

UPPER UPPER

UPPER UPPER

MIDDLE MIDDLE

LOWER LOWER

LOWER LOWER

BERWATH BERWATH

HUJ

QALIBAH

TABUK

T A

Y

M

A

T A

Y

M

A

JUBAH

JAUF

MURAYR

HAMMAMIYATSUBBATQASR

SHAIBA

SAMRAGHUWAR

TUFAYHAHJURANIYAT

TAWIL

SHARAWRA

ZUBLIYAT

NAYYAL

JARISH

KHANAFRIYAH

QUSAIBAUNIT 4UNIT 3UNIT 2

SARAH

ZARQA

QASIM QASIM QASIM

RA’AN RA’AN RA’AN

QUWARAH QUWARAH QUWARAH

KAHFAH KAHFAH KAHFAH

HANADIR HANADIR HANADIR

UPPER UPPER

UPPER UPPER

LOWER LOWER

LOWER LOWER

SAQ SAQ SAQ

HILWAN HILWAN

SAJIR SAJIR

UPPER UPPER

MIDDLE MIDDLE

LOWER LOWER

RISHA RISHA RISHA

QUWEIRA QUWEIRA

SIQ YATIB SIQ YATIB

SHIELDPRECAMBRIAN

SUPERGROUP

GROUP GROUP GROUPFORMATION FORMATION FORMATION FORMATIONMEMBER MEMBER MEMBER MEMBERUNIT

SURFICIAL QUATERNARY

DEPOSITS

UPPER

LOWERMIDDLE

LINA LINA

HAJAJAH HAJAJAH

KHANASIR KHANASIR

MALIHAH MALIHAH

QIBAH QIBAH

MAJMA MAJMA

DUGHUM DUGHUM

SALLAH SALLAH

HURAYSAN HURAYSAN

A AB BC CD D

ULAYYAH ULAYYAH

HAWTAH HAWTAH

HISYAM HISYAMATASH ATASH

DHIBI DHIBI

BALLUM BALLUM

KHARTAM KHARTAMMIDHNAB MIDHNAB

DUHAYSAN DUHAYSANHUQAYL HUQAYL

UNIT 5

UNIT 1

HAWBANUQLAH

GENERAL STRATIGRAPHICCLASSIFICATION

GENERALIZED COLUMNFOR SAUDI ARABIA

NORTHWEST ARABIA

AJFAR AJFAR

HUJ

JUBAH JUBAH JUBAH

MURAYR MURAYR Transitional Zone

JAUF JAUF JAUF

HAMMAMIYAT HAMMAMIYAT HAMMAMIYATSUBBAT SUBBAT SUBBATQASR QASR QASR

SHAIBA SHAIBA SHAIBA

TAWIL TAWIL TAWILGHUWARTUFAYHAHJURANIYAT

SAMRA

ZUBLIYAT

NAYYAL

JARISH

KHANAFRIYAHSHARAWRA

QALIBAH

QUSAIBAUNIT 4UNIT 3UNIT 2

UNIT 5

UNIT 1

TABUK SARAH

UQLAH

SHIELD SHIELD

SIRHAN-TURAYFBASIN

SURFICIALQUATERNARY

DEPOSITS

SIRHAN

TURAYF

ALAT

KHOBAR

ALVEOLINA LS.

SAILA SHALE

MINDRA SHALE

UMM WU’AL

ARQAH PHOSPHORITE

RASHRASHIYAH

JIRANI

SHIHIYAH

TARBAH

HAMAD

AL AMUD

MINDASAHHAWSAH

GHINAH PHOSPHORITE

SIB

JALAMIDKUWAYKABAH

THANIYATBADANAH

ZALLUM

HUDAYB

ARUMA

MIRA

UPPER WASIA FM.

LOWER WASIA FM.WASIA TAWILAH

NOT EXPOSED

SUPERGROUP

GROUP FORMATION MEMBER UNIT

CENTRAL ARABIA SOUTHERN ARABIA

SURFICIAL QUATERNARY

DEPOSITS

TAYARRAT

SHARAWRA

QUSAIBA

SARAH HAWBAN

ZARQA

UPPER

LOWER

SAJIR

BATHAN

BAID

AMRAN

KHUMS

WAJID JUWAIL

KHUSSYANWAJID

HUQUAL

WAJID

DIBSU

SHIELD

??

??

UNCONFORMABLE

DISCONFORMABLE

CONFORMABLE

UNCERTAIN

BOUNDARIES

This chart has been compiled and modified by Mohammed. A. Halawani

KINGDOM OF SAUDI ARABIA

STRATIGRAPHY OF THE PHANEROZOIC ROCKS OF SAUDI ARABIA

LOWER LOWER

UNIT 4-D4UNIT 3-D3

UNIT 4-D4UNIT 3-D3