UNITED STATES DEPARTMENT OF THE INTERIOR

PROFESSIONAL PAPER 560-G

GEOLOGICAL SURVEY PLATE 2
IRAQ *Use of the terms “upper”,
SAUDI “middle! and “lower”
U QATAR KUWAIT SOUTHERN | WESTERN ] NORTH IRAQ OIL-FIELD BELT AND NORTH AND EAST KURDISTAN Oligocene, Miocene,
ARABIA ; etc., does not infer any
Hit-Anah (Generalized) precise correlation with
B.P.C. Wells | Ramadi area | any European stages or
groups of stages
Hammar,
—_ Alluvium RECENT
Bahr Fn Terrace and residual gravels PLEISTOCENE
VNININGAN
I Upper Bakhtiari 8 PLIOCENE
Dibdibba Fn ba Lower Bakhtiari 8
8 | Upper Fars
8 “upper' *
et ~~ PP
Ghar Fn Zahra Fn a
Fi
ae Lower Fars jth “middle""* z
+ . Moree
COT SS icstimeaL Sw § 8
jeribe Limestone
2 iS}
Dhiban ‘Anhydrite Govanda FH lower" * =
Euphrates (ST Serikagni Fn Euphrates LST
ean ‘Azkand, Azkand ie
Ibrahim Fn “upper” *
2 LST a \stT > 7
WN v HAs = a
ajawan Baba , aba Bajawan 3, Q
LST Tarjil Fn LST “middle” *
2 ust : 3 LST 8
Ga’ara area eikhs. Sheikh 3
‘Alas Palani Fn Alas “lower"" *
2, STS . ma 1 LST
Myer nnn aS y as G
Alat ister <7 Avanah Pila Spi jercus 5 “upper;"
> Jaddala Fn 5
ober ac Dammam Fn _ (Subdivided in eae LsT LsT “middle’’ y
[ Midra shale mr Straqy 2 > 1 2 3 ted . zou
(Subdivided in v ¥ lower’ wa
2 g 3 Rus g 4 Fnf Straq) 2 EOCENE 92g
ATS eee Clastics Fn AND uz
‘Subdivided in
Umm er Radhuma Fn « PALEOCENE a
$ Iraq) ‘
— Digma MW
Tayarat Fn Fn ao
Aare ist = MAESTRICHTIAN
Aruma Fn Shiranish Fn 2 i pba
(Qurna) 1 rs) Shicenlah\en A ws/ Clastic Fn
i ;
Bahra (Jibab) Pe Shiranish Fn
re F bas me U. CAMPANIAN
on ecthial En Shires > Hartha Fn 9 c u
2 2 2 iyi2 2 i
wusharah 2
Sa‘di Fn 1 —~ fz Sa‘di Fn Mushorenie man L. CAMPANIAN-
Gudair Fn = 1 zs L. SENONIAN
PB Tanuma Fn 7 Tanuma 7 Kometan Fn ‘
Khasib Fn 55 YE
Khasib TURONIAN
Wasi’a Fn
Dokan LST Fn CENOMANIAN »
>
fe)
a
- oO
Mauddud Fn =
: —z,_Jawan Fn 3 Mauddud Fn ALBIAN ied
Nahr Umr Fn 6 Unnamed shale £ °
n f oo 2 ey a | =
os txt tAAA HAH ames Fos
3 Hf
Shu'aiba Formation $ Balambo APTIAN
2 s E Fn
£ °
Biyadh Fn (Hawar) <
pact nly Zubair Fn =—s BARREMIAN-
N HAUTERIVIAN
TTT ° £
@ <
6 £
Buwaib Fn Ratawi Fn § (Garagu fn)
2 3 7 F 2 VALANGINIAN
‘amama Fn 5
© ic 1
S (Zangura fn) A ie
Yamama Fn 2 3 7" ata Fi i
2 ‘arimia Mudstone) —
1s)
Sulaiy Fn (Makhul fn) 1 Chia Gara Fn TITHONIAN
2 ss 1 (U AND M)
Hith Anhydrite Fn 4l (Ualeha Ist.m.
A/B/CT Qatar Fn fi Ist. me. Barsarin Fn KIMERIDGIAN
Arab Fn 4 - Umm Bab Ist. mr) (U AND2M)
2 pL Fahahil Fn 2 4
= Gotnia Anhydrite
dJubaila Fn 9 barb En ? L. KIMERIDGIAN-
Hanifa Fn 2. . OXFORDIAN (U)
Najmah Limestone Naokelekan Fn
Tuwaia
Mountain OXFORDIAN (L) iS)
LsT AND CALLOVIAN g
<
Araej Fn 5
U and M Uweinat mr: =
2
Dheume Fn BATHONIAN M
Dhibi Ist. mr. 2 sargelu Format AND BAJOCIAN
L. Dhruma Fn ag [2hara Fn argelu Formation
it
u a a
Marrat Fn 6M 4 Alan Anhydrite Fn 4
ff OEMS utallah Fn ;) ee AAA “Mus LST i Sehkanivanirn LIASsIC L
al =, ‘Adatyah Anhydrite Fn ZS 5
L =a Butmah Fr i
ee ae = Sarki F
Butmah Fn 5 = Uba'id Fn 5 & S ‘Unnamed clastics 2 wl 2
Zor Hauran Fn Ea Baluti Shale Fn RHAETIC
5 5
Minjur Mulussa Fn Kurra Chine Fn UPPER 3)
Fn 5 A
B
=
Jilh Fn Unnamed carbonate Ga'ara Sandstone Geli Khana Fn MIDDLE faa
s |
ij Beduh Shale Fi
Sudair Shale | Suwei Fn zy Nijili Fn 6 s eduh Shale Fn 6 Lower
6 6 I Mirga Mir Fn 5
Khuff LST (unit A) Chia Zairi Limestone UPPER 2
2 2 2 <
ete i=eCeSoaeereea _—__ooOowr eee =
I erennanaA &
Lowe
NUMBER KEY TO LITHOLOGIES UNITS R ce
a
f c ' UPPER/MIDDLE >
aria 1 Basinal” marls, shales, and limestones and part LOWER fe}
wo
Sandstone | Unnamed clastic 2
(Age at base | unit (Bahrain 8
pera oaa alate) 2 Neritic, shoal, and shelf limestones amen S
ee Merny rounnasinn | &
3 Back reef and lagoonal limestones (including reef limestones in Ora Shale 7 3)
Oligocene) aint FA Hi
i i |
ete ,
4 Anhydrites and salt (with limestones) DEVONIAN
JaufFn__ 2
5 Alternating anhydrite, calcareous shales, dolomites, pseudo-oolitic and
chemical limestones SIDURIAN
6 Marine sandstones, siltstones, and variegated clastics
Chalki Fn " 2
7 Neritic marls and shales, some silty ut upper z
Pirispiki red beds 10 3
5 1
1
8 Continental sandstones and lacustrine clastics iabouriGuarenes oe 8
Shale Fn lower’ fo}
en 9 Flyschlike cal , ---- ----
Sandstone lyschlike calcareous clastics =
6 Note: Formation names in small CAMBRIAN
ee 10 Red beds type and in parentheses,
as (Zangura fn), indicate
obsolescent usage. Ab-
ul Volcanics and intrusives breviations used are in
1.P.C. format which
Metamorphics differs from U.S. Geolog-
and 12 “Fresh-water” sandy limestone feeh Sieve ven toes Weal PRECAMBRIAN
, formation, Ist =limestone,
plutonics
u li and_mr=member
= oe |
SoCo nnn va. Velen
Unconformity of small . r Top of eroded unit Conformable
duration, or deposi- Erosional unconformity - , contact
tional break, or dis- of unknown dura- Erosional unconformity of assessed
putable unconformity tion time-value
KEY TO
BOUNDARY
SYMBOLS Arbitrary cutoff, separating like units which
are recognized by different names in
different areas
“7 NN. Separating unlike units which inter-
and and S__ >  Fgrade or interdigitate laterally
l a]

SCHEMATIZED REGIONAL CORRELATION OF ROCK UNITS, SOUTHERN IRAQ

232-987 O - 66 (In pocket)