Study of Recent Faunal
Assemblages and Their Ecology In Northwestern Part Of
Arabian Gulf
and Southen Part Of Mesopotamia
Rasha Abdul-Sattar Al-Khuzaee
Dept. geology, college of sience, Basrah
University
Email:
rashaal_ali@yahoo.com
Abstract
The faunal assemblages within surface and subsurface
quaternary Sediments
selected from northwestern
Arabian Gulf
and Lower Mesopotamia
were taken in consideration. Forty two samples were
collected; 13 samples
from surface sediments of Shatt Al-Arab west bank
(Southern Fao –Shatt
Al-Arab Estuary, 11 samples from Khor Abdullah
coast and 18 samples from Kor Al-Zubair coast.
The subsurface study was carried out via
micropalentological study of selected core samples from
11bore holes supplied by the company of geological
survey and
Mining.
The determination of
paleoenvironmental conditions depend essentially upon
the identification of the available microfossils. The
assemblages comprises different types of ostracoda,
foraminifera, mollusca
(Lamellibranchiata), and charaophytes. However
five species were identified for first time iun the
study area; three foraminifera species belong to genera
Ammonia
sp., Elphidum sp., and Rosalina
sp., and two molluscan species belong to genera
Nucula sp., and Vitrinella sp. Wher mollusca
are listed for the first time in the present sediments.
Depending on the
salinity interpretation and distribution the identified
microfossils; the depositional environment of quaternary
sediments understudy could be divided into four Eco-facies
in Lower Mesopotamia (M-1, M-2, M-3, and M-4) and two
Eco-facies in northeastern part of Arabian Gulf (A-1,
and A-2).
A PH.D thesis submitted to the College
of
Science- Basarh University By
Rash Abdul-Sattar AlAli,
2007, (in Arabic), supervised by:
Dr. Saad AkShiekhly- Dept. Geology_College Of
Science, Baghdad
University.
Dr. Abdul-Mutalib Hasson Al-Marsoumi, Dept.
Geology, College of Science, Basra University
