Abstract The Coniacian–Santonian Matulla Formation is one of the important reservoirs in July oilfield, Gulf Suez Basin. However, this formation characterized by uncertainty due to complexity reservoir architecture, various lithologies, lateral facies variations and heterogeneous quality. These challenges, turn, affect effectiveness further exploitation along In work, we conduct an integrated s...

Abstract The standard reconstruction of species Orbitoides d’Orbigny into a single lineage during the late Santonian to end Maastrichtian is based upon morphometric data from Western Europe. An irreversible increase in size embryonic apparatus, and formation greater number epi-embryonic chamberlets (EPC) with time, regarded as main evolutionary trends used discrimination. However, assemblages C...

The Sa’adi Formation is a part of the late Cretaceous period in Santonian-Campanian stage that represents potential hydrocarbon-bearing reservoir across many oilfields Mesopotamian Basin, South Iraq. was divided into two main parts as stratigraphy sequence. It consists chalky limestone with argillaceous upper and marly lower part. considered an important stratigraphic unit marked by petroleum s...

Two stratigraphic sections (Kuh-e-Rahmat and Kuh-e-Sabz) of Upper Cretaceous strata in the Interior Fars region (SW of Iran) were selected. Lower Cretaceous succession of Kuh-e-Rahmat was consisted of Dariyan, Kazhdumi Sarvak and Ilam Formations. The lower contact of the Sarvak Formation with Kazhdumi Formation is described as a transitional type whereas the upper contact of Sarvak Formation wa...

The middle Santonian-lower Campanian carbonate-mud dominated succession deposited in the northeastern margin of South Iberian Ramp (La Cañadilla Fm, NE Spain) shows a complex set interfingered facies developed low-energy and low-gradient shallow-marine to coastal environment. Three belts characterize environment reconstructed this work: (1) shallow marine lagoon by radiolitid rudist limestones ...

in order to study biostratigraphy of the surgah formation in zagros sedimentary basin, two subsurface sections of this formation in maleh kuh and sarkan oil fields at pol-e-dokhtar area, lorestan province, have been selected. the thickness of surgah formation at maleh kuh and sarkan, was 82 and 46 meters respectively and is composed of shale with intercalation of limestone and calcareous shale....