Results 41 to 50 of about 8,930 (209)

Exploring the role of organofacies in governing kerogen kinetics: A case study of the Permian Gondwana coals from India

Energy Geoscience
This study investigates four Late Permian Gondwana coals from the Raniganj sub-basin, Damodar Valley and three Early Permian Gondwana coals from the Talcher sub-basin, Mahanadi Valley.
Monalisa Mallick, Runcie Paul Mathews, Nihar Ranjan Kar, Barnita Banerjee, Subhasmit Dash, E.V.S.S.K. Babu, Srinivas Bikkina, Vikram Partap Singh, Satendra Kumar Gupta, Vireswar Samanta   +9 more
doaj   +1 more source

Cretaceous-tertiary boundary layer at Stevns Klint (Denmark): Copper and copper(II) porphyrins [PDF]

Journal of the Serbian Chemical Society, 1999
High concentrations (up to 4000 ppm) of copper(II) porphyrins have been detected in the kerogen of the Cretaceous/Tertiary (KT) boundary informal type sediment, the Fish Clay, at Stevns Klint, Denmark.
Premović Pavle I., Nikolić Nikola D., Tonsa Ivana R., Dulanović Dejan T., Pavlović Mirjana S.   +4 more
doaj   +1 more source

Postdiagenetic Changes in Kerogen Properties and Type by Bacterial Oxidation and Dehydrogenation

Molecules, 2022
A significant part of organic carbon found on the earth is deposited as fossil organic matter in the lithosphere. The most important reservoir of carbon is shale rocks enriched with organic matter in the form of kerogen created during diagenesis.
Agnieszka Wilamowska, Marta Koblowska, Renata Matlakowska   +2 more
doaj   +1 more source

Coupled plagioclase dissolution and K‐feldspar overgrowth precipitation preserve anomalously high permeability in deeply buried sandstones

Sedimentology, EarlyView.
ABSTRACT This study investigated the formation mechanism responsible for anomalously high permeability (AHP) observed in the Eocene sandstones at depths from 3824 to 3832 m in the Huizhou Sag, Pearl River Mouth Basin, China, using helium porosity and permeability measurements, thin section, scanning electron microscopy, electron probe X‐ray ...
Changgui Xu, Huan Li, Wei Wang, Yangdong Gao, Guangrong Peng, Lin Ding, Eric O. Ansah, Pei Liu, Xiaoyan Li, Saju Menacherry, Hongtao Zhu, Xianghua Yang, Zhiwei Zeng   +12 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

Geochemistry of the cretaceous-tertiary boundary (Fish Clay) at Stevns Klint (Denmark): Ir, Ni and Zn in kerogen [PDF]

Journal of the Serbian Chemical Society, 2006
Geochemical analyses of trace metals (Ir, Ni and Zn) in the kerogen of the black marl of the Cretaceous-Tertiary boundary succession (Fish Clay) at Stevns Klint (Højerup Church) were undertaken.
Premović Pavle I., Krsmanović Milena M., Todorović Bratislav Z., Pavlović Mirjana S., Nikolić Nikola D., Đorđević Dragan M.   +5 more
doaj   +1 more source

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

Kerogen

, 2003
[Extract] Kerogen is the solid, high molecular-weight fraction of sedimentary organic matter (OM) that is insoluble in organic solvents (e.g. chloroform) as oppoosed to the soluble fraction called bitumen.
Bustin, R Marc, Wüst, Raphael A.J.
core   +1 more source

Solid-liquid organic matter interaction mechanism between kerogen and aromatic compounds

Shiyou shiyan dizhi
Under geological conditions, the initial generation of oil and gas in source rocks reaches saturation before being expelled and migrating, with the adsorption of hydrocarbons by kerogen being a key factor influencing oil saturation.
Xiaohui LIN, Tian LIANG, Yanrong ZOU, Cheng TAO, Yuan WANG   +4 more
doaj   +1 more source

Molecular Investigation of CO₂/CH₄ Competitive Adsorption and Confinement in Realistic Shale Kerogen

Nanomaterials, 2019
The adsorption behavior and the mechanism of a CO2/CH4 mixture in shale organic matter play significant roles to predict the carbon dioxide sequestration with enhanced gas recovery (CS-EGR) in shale reservoirs.
Wenning Zhou, Zhe Zhang, Haobo Wang, Xu Yang   +3 more
doaj   +1 more source