Results 41 to 50 of about 6,759,086 (168)

Early development of anoxia prior to the main euxinic phase of the Jenkyns Event on the margin of the Western Tethys (Sachrang Basin, Eastern Alps)

Sedimentology, EarlyView.
ABSTRACT Although the global expansion of oxygen‐depleted marine environments during the Early Toarcian Jenkyns Event (or Toarcian Oceanic Anoxic Event) is primarily inferred from successions in the NW European epicontinental basins, the timing of the expansion of anoxia in Tethyan basins, where hydrography potentially played a minor role, is poorly ...
Tamás Müller, Stefan Neumeister, Jan Schlögl, Emanuela Mattioli, Hans‐Jürgen Gawlick, Thomas J. Algeo, Adam Tomašových   +6 more
wiley   +1 more source

Chemical reaction model for oil and gas generation from type 1 and type 2 kerogen

, 1993
A global model for the generation of oil and gas from petroleum source rocks is presented. The model consists of 13 chemical species and 10 reactions, including an alternate-pathway mechanism for kerogen pyrolysis.
Burnham, A. K., Braun, R. L.
core   +1 more source

COMPARISON OF HYDROCARBONS FORMED AT PYROLYSIS OF TURKISH TYPE I KEROGEN (GÖYNÜK) AND TYPE II KEROGEN (BEYPAZARI) [PDF]

Oil Shale, 2022
Levent Ballice, R. Reimert
doaj   +1 more source

Machine Learning Approaches for Predicting Total Organic Carbon From Petrophysical Well Logs in the Wufeng–Longmaxi Shale, Southeast Sichuan Basin, China

Geoscience Data Journal, Volume 13, Issue 4, October 2026.
This study demonstrates the application of machine learning models—Random Forest, XGBoost, and Multiple Linear Regression—to predict Total Organic Carbon (TOC) from well logs, significantly improving TOC prediction accuracy and reliability across diverse geological settings compared to traditional log‐based methods.
Haseeb Ahmad, Jiang Shu, Naveed Rehman, Muhammad Asad, Muhammad Tariq, Aqib Saeed, Attiqullah Ayaz   +6 more
wiley   +1 more source

High sulphur oil of Type II kerogen of the oil shales from Western Central Jordan based on molecular structure and kinetics

Scientific Reports
Organic rich sedimentary rocks of the Late Cretaceous Muwaqqar Formation from the Lajjun outcrop in the Lajjun Sub-basin, Western Central Jordan were geochemically analyzed.
Mohammed Hail Hakimi, Mohammad Alqudah, Khairul Azlan Mustapha, Ali Y. Kahal, Mahdi Ali Lathbl, Afikah Rahim, Mikhail A. Varfolomeev, Danis K. Nurgaliev, Ameen A. Al-Muntaser, Shadi A. Saeed   +9 more
doaj   +1 more source

Mechanism of adsorption-desorption hysteresis of shale gas in kerogen and influencing factors analysis

Youqi dizhi yu caishoulu
The adsorption behavior of methane in kerogen is of great significance for shale gas reserve evaluation and production prediction. However， there is still a lack of clear understanding of the hysteresis phenomenon and its micro-causes in the process of ...
TANG Haijun, QIU Xingdong, LIU Yisheng, DAI Xia, TANG Cong, HUANG Liang, WANG Lei   +6 more
doaj   +1 more source

The Unexpected Discovery of Paleocene? Coals in Outcrops Thought to Be Cambrian, Al Huqf, Oman

Journal of Petroleum Geology, Volume 49, Issue 4, Page 1179-1194, October 2026.
ABSTRACT Two brown organic deposits were encountered whilst investigating kaolinitic claystones thought to occur at the base of a Cambrian formation at outcrop. The age of these organic deposits is probably Paleocene from palynology. Organic petrography shows that they are subbituminous coals with some oil source potential.
Mohammed H. Al Kindi, Alan P. Heward, Lorraine B. Eglinton, Steve R. Packer, Darrin T. Stead   +4 more
wiley   +1 more source

Evaluation of Upper Paleozoic source rocks in the southeastern margin of the Ordos Basin

Frontiers in Earth Science
IntroductionThe Yanchang gas field in the southeastern Ordos Basin is an important region for natural gas exploration due to the presence of Upper Paleozoic coal-bearing source rocks.
Yongping Wan, Zhenchuan Wang, Minrui Cui, Minrui Cui, Kouqi Liu, Wu Li, Wu Li, Wu Li   +7 more
doaj   +1 more source

Comparative Assessment of Hydrocarbon Generation Potential of Organic Matter from Shale Sediments along Isugwuato – Okigwe Axis, Anambra Basin, SE Nigeria

Journal of Applied Sciences and Environmental Management, 2021
TRACT: The Cretaceous sediments in the Anambra Basin (SE Nigeria) consist of a cyclic succession of coals, carbonaceous shales, silty shales and siltstones  interpreted as deltaic deposits.
M.U. Uzoegbu, C.U. Ugwueze
doaj   +1 more source

1D Basin Modelling of Upper Jurassic to Upper Cretaceous Source Rocks in the Southern Pletmos Sub‐Basin, Outeniqua Basin, Offshore South Africa

Journal of Petroleum Geology, Volume 49, Issue 4, Page 1382-1411, October 2026.
ABSTRACT The Pletmos sub‐basin in the Outeniqua Basin, offshore South Africa, is divided by the Superior, Pletmos and Plettenberg faults into northern and southern depocentres. In this study, geological and organic geochemical data together with 1D basin modelling were used to investigate the burial, thermal and maturation histories, and the timing of ...
Fritz Ako Agbor, Sanelisiwe Mhlambi, Nimuno Achu Teumahji, Wasiu Adedayo Sonibare, Jan van Bever Donker   +4 more
wiley   +1 more source