Sea of Oman Arabian Sea

57°

58°

59°

Legend Amdeh outcrops Haima outcrops (Amin-Barik) Ara Salt Basin Possible extension of Ghaba Salt Basin Blueschist metamorphic zone Greenschist metamorphic zone Gas (red) or oil (green) field sealed by Mabrouk Fm

Sea of Oman

as ina

LQ Y

A

Quryat

Wadi Qahza Wadi Sareen Wadi Daiqa

W ad

23°

Hayl al Quwasim

X

na

pp

N

40°

A0 Wadi Jannah

t

Ha w

Al Amerat

Upper Quartzite Member (Am4)

es

Makarem High

iA

md e

h

LQ

ahza

on Fr

of

b

Muscat

Wadi Amdeh

Jabal Akhdar

60° 24°

Wadi Q

a

LQ

B

22°

C

GHABA SALT BASIN SN-33

Qarn Mahatta Humaid

Middle Shale Member (Am3)

Arabian Sea 21° 0

LQ = Lower Quartzite Member (Am2)

100 Km

500 m Aqaba Qahza

Gondwana

Seaward

Landward

Proto-Tethys

Ghaba Salt Basin subsurface

Stage

Qarn Mahatta Humaid outcrops

Saih Hatat outcrops

Dibba Zone, UAE Global Sea Level Curve outcrops +Arabian Plate Flooding Events S10

Sil.

440 Sahmah Fm

Rhuddanian Hirnantian Katian

Sandbian

Hasirah Fm

Middle

Dapingian

490

Stage 10

Paibian

Miqrat Fm

Amin Fm

Mahatta Humaid Group

Stage 4

Series 2

O30

F L. Mbr F

O25

O20 O10

Al Bashair Fm

Cm30

Miqrat Fm Cm20 Burj Transgression

Amin Fm

Stage 3

L Quartzite Mbr Am2 ?

520

Ed.

540

Fortunian

Haradh Fm

?

?

L Siltstone Mbr Am1 ?

Karim Fm

+ 200 m

530

Nimr Group

Terreneuvian

Stage 2

Ara (undiff.)

Droste (1997) Forbes et al. (2010)

Continental

Buckley and Harbury (1997) Al-Marjibi (2011)

Braid Delta

This study Heward et al. (2016)

Marine

Fortey et al. (2011)

+ 100 m

510

Cambrian

Stage 5

Mahatta Humaid Group

Series 3

Drumian

F Ayim Mbr F

Barik Fm

Ghuzhangian

500

O40

M Shale Mbr Am3

Barik Fm

Al Bashair Fm

Jiangshanian

F U. Mbr F

Amdeh Formation

Furongian

Tremadocian

Barakat Fm ? Mabrouk Fm

Andam Group

Early

Floian

U Quartzite Mbr Am4

Ghudun Fm

Andam Group

470

480

U Siltstone Mbr Am5

Saih Nihayda Fm

Darriwilian

Haima Supergroup

Ordovician

460

Rann Formation

Safiq Group

Late

450

Present day

Epoch

Ma

Period

External Terrane ?

Haq and Schutter (2008)

Marine ‘Griotte’ Intra-Basin High

a

LQ

Scarp 1.3

1.2 1.1

b

UQ (redef) Shelly Marker 2.4 TBU

Ge Ma

2.3

rk e r

2.2

c Shelly Marker UQ (redef)

Cruziana Marker 2.4

a

b

c

d

e

f

g

h

a

b

0.5 mm c

0.5 mm d

10 mm e

0.5 mm f

0.5 mm g

0.5 mm h

10 mm

0.5 mm

Amin Fm

Miqrat Formation

Early - Middle Cambrian Al Bashair Formation

Late Cambrian

0

100

API

Droste (1997) Forbes et al. (2010)

Early Ordovician

Barakat Fm Ghudun Fm

? Influx of heavy minerals

U. Quartzite Mbr

250 km

-25

4495

100 m

4749

200 0

Adjusted API 100 200

Early Cambrian ?

Mabrouk Fm

Saih Nihayda-33 Subsurface GR

L. Quartzite Mbr

Barik Formation

Early Ordovician

SW Wadi Qahza Outcrop GR NE

Shelly Marker

Cruziana Marker

Lat

Long

Lat

Long

Wadi Qahza Base X Top X

23°18'54.2" 58°22'52.0" 23°18'59.5" 58°22'49.3"

Base A Top A

23°19'23.6" 58°22'16.4" 23°19'25.6" 58°22'10.2"

Base Y Top Y

23°19'15.6" 58°22'52.2" 23°19'37.6" 58°22'14.2"

Base B Top B

23°18'15.7" 58°22'23.2" 23°18'19.0" 58°22'17.5"

Base A0 Top A0

23°19'27.9" 58°22'17.7" 23°19'27.8" 58°22'15.0"

Base C Top C

23°18'6.9" 58°22'11.3" 23°18'4.9" 58°22'25.7"

Conodont samples Sect Y, Carb 4, Y7 Sect Y, Carb 5, Y2

23°19'26.8" 58°22'41.9" 23°19'26.4" 58°22'41.7"

Palynology samples Sect Y, Y9P Sect Y, Y10P Sect Y, Y11P

23°19'35.9" 58°22'28.0" 23°19'39.3" 58°22'21.3" 23°19'36.1" 58°22'20.9"

Wadi Sareen BRGM Fossil Location 23°13'18.0" 58°36'17.9"

Sect A, 16/1 23°19'24.5" 58°22'11.8" Sect B, 16/5 23°18'17.4" 58°22'20.1" Sect C, 16/6 23°18'11.8" 58°22'20.1"