İsmail Ömer Yılmaz

Department of Geological Engineering
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The Paleozoic petroleum system of the Molla-Bismil area (Diyarbakır Basin, Turkey) and source rock properties of Lower Silurian (Llandovery) organic-rich shale
Hoşgör, İzzet; Yılmaz, İsmail Ömer (2022-09-01)
© 2022 Elsevier LtdThe Molla-Bismil area is a petroleum province, which hosts predominantly Paleozoic oil fields in the foreland area of the Diyarbakır Basin. The Arpatepe, Bahar, Yeniev, and Çalıktepe fields are Paleozoic...
Microfacies and stable isotope analyses (δ13C and δ18O) of the upper Serpukhovian-Moscovian carbonates in the Hadim Nappe, southern Turkey: an approach to document the Late Paleozoic Ice Age (LPIA)
Akbaş, Melikan; Okuyucu, Cengiz; Yılmaz, İsmail Ömer (2022-07-01)
© 2022, Springer-Verlag GmbH Germany, part of Springer Nature.The Late Paleozoic ice age (LPIA) span from latest Devonian to Late Permian (Lopingian) and was one of the three major Phanerozoic glaciations. Large continenta...
Geochemical and petrographic approach for the origin of the limestone blocks of the walls of the Great Temple of Hattusha, Corum (N-Turkey)
Yılmaz, İsmail Ömer; Schachner, Andreas; Uysal, I. Tongue; Unal-Imer, Ezgi (2022-05-09)
The socle stones of the Great Temple in the Lower City of the Hittite capital city, Hattusha (??orum Province) have been studied for the first time by petrographic and geochemical analysis (Sr isotope, stable isotope, and ...
‘Filament’ marker beds in the Karababa-A Member (Turonian) of the Arabian platform, SE Turkey: Palaeo-environmental significance, stratigraphy and correlation potential
Mülayim, O.; Yılmaz, İsmail Ömer; SARI, BİLAL; Ferré, B. (2021-04-01)
A ‘filament’ event bed/level corresponds to the occurrence of thin elongate calcitic, shells, or plates of pelagic, bivalve or crinoidal, origin, within pelagic, laminated and organic-matter rich limestones. These organic-...
First record of late Campanian paieoceanographic and paieociimatic changes, Arabian platform, Mazidag-Mardin area, SE Turkey
Yılmaz, İsmail Ömer; Altıner, Sevinç; Kvacek, Jiri (2021-03-01)
The sedimentology, geochemistry and paleontology of the pelagic upper Campanian Maastrichtian Bozova Formation in the "Mazidag" (Mazidagi) - Mardin area, SE Turkey, reveal paleoceanographic and paleoecological changes for ...
Micropalaeontology, biostratigraphy, and depositional setting of the mid-Cretaceous Derdere Formation at Derik, Mardin, south-eastern Turkey
Simmons, Michael D.; Vicedo, Vicent; Yılmaz, İsmail Ömer; Hosgor, Izzet; Mulayim, Oguz; SARI, BİLAL (2020-11-01)
The micropalaeontology of the mid-Cretaceous Derdere Formation (Mardin Group) from outcrops close to the town of Derik in south-eastern Turkey is described here. In thin sections from the carbonates that form the majority ...
Reservoir heterogeneity of Ordovician sandstone reservoir (Bedinan Formation, SE Turkey): Diagenetic and sedimentological approachs
Yildiz, Gokay; Yılmaz, İsmail Ömer (Elsevier BV, 2020-08-01)
The sandstone-bearing reservoir levels (Bedinan Formation) in the Diyarbakir Basin, SE Turkey show strong heterogeneity in porosity, permeability and capillary pressure, which influences oil production rates of the studied...
A Cenomanian-Santonian rudist-bearing carbonate platform on the northern Arabian Plate, Turkey: facies and sequence stratigraphy
Mulayim, Oguz; Yılmaz, İsmail Ömer; Ozer, Sacit; SARI, BİLAL; TASLI, Kemal (Elsevier BV, 2020-06-01)
Recent studies have shown that Cenomanian-Santonian carbonate sedimentary rocks rich in rudists are widespread throughout southeastern Turkey. The Derdere and Karababa formations have been analysed in the Sabunsuyu section...
Late Cretaceous stratigraphy in the Mudurnu-Goynuk Basin (Turkey) and inferences on sea-level change in the Late Campanian to Early Maastrichtian
Wolfgring, Erik; Wagreich, Michael; Yılmaz, İsmail Ömer; Liu Shasha, Liu Shasha; Boehm, Katharina (Geological Society of London, 2020-01-01)
Upper Cretaceous strata at Goynuk, northwestern Anatolia, Turkey, provide a geological record of the Campanian-Maastrichtian from the Sakarya Terrane along the active Neotethys margin. Shales and shaly marls with silicicla...
An introduction to causes and consequences of Cretaceous sea-level changes (IGCP 609)
Wagreich, Michael; Sames, Benjamin; Hart, Malcolm; Yılmaz, İsmail Ömer (Geological Society of London, 2020-01-01)
The International Geoscience Programme Project IGCP 609 addressed correlation, causes and consequences of short-term sea-level fluctuations during the Cretaceous. Processes causing several ka to several Ma (third- to fourt...
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