Saad S.J. AL-Sheikhly

Saad S.J. AL-Sheikhly
Baghdad University College of Science · Department of Geology

Ph. D.

About

29
Publications
7,411
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139
Citations
Citations since 2016
5 Research Items
65 Citations
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2016201720182019202020212022051015
2016201720182019202020212022051015

Publications

Publications (29)
Article
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The distributions of rivers, back swamps, delta, and ancient marine shore line of Southern Mesopotamia during Late Pleistocene-Holocene have been studied depending on the ostracoda and foraminifera assemblages as ecological indicators to determine the ecofacies and paleosalinities, which diagnose different depositional environments. The data are co...
Article
Full-text available
The Muaddud Formation is the most important and widespread Lower Cretaceous formation in Iraq. This formation has been studied at Badra well No-1 within Badra oil field, at Eastern Iraq. Seventy thin sections were prepared and studied in this study. Nineteen species of foraminifera were determined, in addition to that high abundant of rudist, bival...
Article
Full-text available
Five new ostracod species belonging to the subfamily Trachyleberidinae have been described. They are Paragrenocythere monilis and Peloriops levisulcata from the Maastrichtian of Iraq; Oertliella petraensis from the early Palaeocene (middle – late Danian) of Jordan; Reticulina syriaensis from the Palaeocene of Syria and Reticulina ninurta from the m...
Article
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Ostracode assemblages have been utilized for the study of the paleoecology of the Maastrichtian – Upper Eocene succession (Hartha, Shiranish, Aaliji, Kolosh, Jaddala and Avanah formations) in North and Iraq, represented by five sections, including four boreholes, Anah well-2, Mityaha well-1, Makhul well-2, Chemchemal well-2 and Jabel Sinjar outcrop...
Article
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The well-preserved Upper Permian-Lower Triassic succession in the Kurdistan region of northern Iraq has provided an opportunity to study the Permian-Triassic boundary. This study presents the first ever stable isotope data for these rocks. One hundred and sixty-five samples from the Ora Beduhe and CZO sections located within the Ora structure in th...
Article
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Clastic-carbonate succession which including the Nahr Umr and Mauddud Formations are represented a part of Albian-Early Turonian Sequence Wasìa Group). The present study includes Petrography, microfacies analysis, depositional environment, digenetic development, and reservoir characterization for seven boreholes (Lu-2, Lu-4, Lu-5, Lu-8, Lu-13, Lu-1...
Article
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Three formations were studied from seven outcrops extend from Surdash to Shaqlawa (Cenomanian – Santonian), they comprise Dokan, Gulneri and Kometan Formations. Four microfacies and eight submicrfacies are identified depending on this microfacies, we determine the depositional environments. Dokan Formation is deposited in open-marine deep shelf env...
Article
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Three formations to be studied along Surdash, Qallat, Khalakan, Hezob, Sektan, Degala and Shaqlawa areas in the Sulaimaniya and Erbil governorates, NE Iraq. These are: Dokan, Gulneri and Kometan formations. The paleoecology and depositional environment of these formations are determined by studying the ecology of the planktonic and benthic foramini...
Article
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Two new species of rudist (Dictyoptychus acutidentatus n. sp.; Dictyoptychus mukabaensis n. sp.) have been described from the Maastrichtian Aqra Formation in Iraq. Rudist species and other associated microfossils indicate a Maastrichtian age. The depositional environment of Aqra Formation is determined by the occurrence of the rudist, foraminifera...
Article
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Basin analysis (geohistory) is carried out on the Cretaceous to Tertiary succession in five wells at Kirkuk and Bai Hassan Oil Fields during the Aptian to the Recent. The Foothill Zone exhibited a complex subsidence and uplift history over a period of about 132 Ma. The results from studied wells backstripping provide a record of the subsidence and...
Article
Full-text available
Three formations were studied along Surdash, Qallat, Khalakan, Hezob, Sektan, Degala and Shaqlawa areas in the Sulaimaniyah and Erbil governorates, NE Iraq. These are: Dokan, Gulneri and Kometan formations. The age of these formations are determined depending on the biozones of planktonic foraminifera, and the contact between each two formations wa...
Article
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The fossils of the Mishrif Formation for well Amarah-1 in southeastern Iraq was studied, where 312 thin sections have been used for litho- and biostratigraphic studies. Two biozones have been distinguished within the studied succession; these are from older to younger: 1- Praealveolina cretacea partial range zone. 2- Praealveolina tenuis range zon...
Article
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The Ostracoda of the Fat’ha Formation (M. Miocene) from central Iraq have been studied. There are 17 species belonging to 12 genera including 9 species described for the first time from this formation. Those genera are showing affinities with ostracod of Mediterranean Bioprovience.
Article
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Maymouna Formation is a new fresh – brackish water equivalent to the marine Hammar Formation of Quaternary age. It is deposited in fluvial, swamps, back swamps and deltaic environments and widely distributed throughout southern Iraq.
Conference Paper
Full-text available
The palaeoecology of the Quaternary deposits in Mandli / Kut area were studied on the basis of Ostracoda fauna. Three ecofacies were distinguished representing fluviatile, swampy and deltaic environments. The environmental changing during Quaternary time reflect the climatic changes from dry during late Pleistocene (about 15000 years B.P.) to wet d...
Conference Paper
Full-text available
Climatic changes of Mandli/ Kut areas have been studied for Quaternary period on the basis of palynomorphs. The samples were taken from the two Deep boreholes 5 and 9 drilled by Iraqi Geological Survey and Mining Company. Two pluvial periods could be observed by pollen evidences drawn on pollen diagrams, the first occurred during the probably early...
Article
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The Holocene palaeozoogeography of southern Iraq (Southern Mesopotamian Basin) have been studied according to the distribution of thirteen species of shallow marine ostracoda belonging to twelve genera. Their distributary patterns have indicated the possible and probable migratory routes of ostracoda during the Late Cenozoic from the center of spec...
Article
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Inequilateral Crassostrea – like bivalves from U. Cretaceous (Maastrichtian) beds in W. Iraq are attributed to a new genus Crassacutostrea n. gen. characterized by its close resemblance to both Crassostrea and Acutostrea. A Crassostreaed mode of life is suggested for this new genus, supported by its association with Crassostrea sp. Two new species...
Article
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Cyprideis torosa (Jones) Jones, 1857 comprising about 90 - 95% of the total ostracod fauna in the Quaternary deposits of the southern Mesopotamian Basin. It is an attempt to study the population structure, ontogeny, morphology of carapace and biometry of this species in relation with the palaeoecological variables, especially the salinity.
Article
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Distribution of benthonic foraminiferal assemblages of Quaternary from boreholes in Basrah Area indicate deposition in marginal marine environment of normal to hypersaline condition. Cooling events at depths were documented by presence of certain benthonic foraminifera.
Chapter
The summarized stratigraphic distribution of ostracods from North Africa, the Levant, Iraq and Arabia is presented, together with a discussion of palaeoecology. More specifically, these latter comments enable the recognition of non - marine, infralittoral, inner circalittoral, outer circalittoral and bathyal assemblages. The evolution and taxonomy...
Article
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Five species belonging to the genus Acanthocythereies R.C. Howe, 1963, have been described from the Upper Cretaceous­ Paleogene of Iraq, Jordan and Syria; of which only new species being assigned to the subgenus Acanthocythereis (Acanthocythereis); while the other four species, including three new species, are belonging to the new subgenus Acanthoc...
Article
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Four Biostratigraphic foraminiferal zones, Globotruncana renzi – Glt. sigali Zone, Glt. concavata Zone, Glt. fornicate Zone, and Glt. fornicata – Glt. elevata – Glt. Stuartiformis Assemblage Zone have been distinguished. They are from the Late Turonian – Early Campanian Kometan Formation of Northern Iraq.
Article
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Five new species of benthonic Foraminifera, Spiroplectammina sayyabi, S. rectangularis, Gaudryinella kometanensis, G. triquadratus and Osangularia abnormis have been described. They are from the Upper Turonian – Lower Campanian Kometan Formation of Northern Iraq.
Article
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The Cenomanian succession in western Iraq is represented by the Rutba Sandstone Formation and M’sad Formation. The Rutba Sandstones accumulated in the Early Cenomanian times, and can be correlated with the Ahmadi Formation in the South. The lower part of the formation represents deposition by sandy braided fluvial system. Its upper part represents...
Article
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Six ostracode species belonging to the subfamily Trachyleberidinae have been described from the Maastrichtian of Northern and Western Iraq; of which five species assigned to the genus Cythereis Jones (1849), three of them are new; and one new species belongs to the genus Dumontina Deroo (1966).
Conference Paper
Full-text available
Ordoniya is a new genus of Ostracoda belonging to the subfamily Trachyleberidinae, described from the Palaeogene of Jordan, Iraq, Syria and Egypt. Seven species being assigned to the new subgenus Ordoniya (Ordoniya), of which two species are new and four species are belonging to the new subgenus Ordoniya (Pharkidata) of which three species are new....
Article
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Eight new ostracod species of the genus Occultocythereis H.V. Howe, 1951 from the Maastrichtian – Eocene of North and Western Iraq (Jabel Sinjar, Anah Well-2 and Makhul Well-2 Sections) have been described. They are Occultocythereis elongata sp. nov., O. harthaensis sp. nov., O. hatraensis sp. nov., O. makhulaensis sp. nov. and O. namrudia sp. nov....

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