Abstract Geochemical data and their various approaches are useful to evaluate the climatic control on depositional environments. This study aims paleoweathering plaeoclimate condition that have controls environments of Miocene Pliocene siliciclastic sequence at Al-Rehaili area, north Jeddah. To achieve this aim, selected sandstone samples were geochemically (major trace elements analysis) petro...

Abstract The Paleogene Shahejie and Dongying formations of the eastern Bohai Bay Basin contain >500 m fluvial-deltaic deposits >600 deltaic-lacustrine deposits, both which are important for oil gas exploration. This study aims to figure out deposition system distribution within sequence stratigraphy predict exploration target. Sequence boundaries recognized by unconformities in se...

Abstract The quality of a hydrocarbon reservoir is strongly controlled by the depositional and diagenetic facies nature given rock. Therefore, building precise geological/depositional model rock critical to reducing risks while exploring for petroleum. Ultimate characterization constructing an adequate geological still challenging due in general insufficiency data; particularly integrating them...

The Shiranish Formation is cropped out in several areas northern Iraq. A stratigraphic and facies study was conducted within the Duhok region to determine sedimentary environment. Three microfacies, reflecting various subenvironments different shelf parts of deep sea, have been identified Formation. Four depositional environments are identified: slope, toe shelf, deep-sea or cratonic basin. reg...

Depositional environment and source potential of the different organic-rich levels of Devonian age (up to 990m thick) from the onshore EC-1 well (Southern Tunisia) were investigated based on the analysis of more than 130 cutting samples by different geochemical techniques (Rock-Eval pyrolysis, GC-MS). The obtained results including Rock Eval Pyrolysis data and biomarker distribution (terpanes, ...

Re-Os isotopic analyses of a single organic-rich sedimentary rock unit (ORS) of known depositional age, and at three levels of regional hydrocarbon maturity, show that hydrocarbon maturation does not affect the ability the Re-Os chronometer to yield a depositional age for such rocks. We present Re-Os isotope analyses from the Late Devonian Exshaw Formation in the subsurface of the Western Canad...