Results 81 to 90 of about 6,860 (216)

Organoclay interaction response to sedimentary environment and sources in Paleogene shales from the Nanpu Sag: Insights for organic matter accumulation mechanism

The Depositional Record, Volume 12, Issue 1, February 2026.
The deep paleo‐lake, characterised by low energy and moderate salinity, facilitated the input of fine‐grained minerals and the development of aquatic organic matter. Under the combined influence of the sedimentary environment and material source, mineral‐bound organic matter was formed, which played a crucial role in the enrichment of organic matter ...
Rusi Zuo, Jingong Cai, Wei Duan, Xiang Zeng, Jinyi He, Chuan Cai, Qianyou Wang   +6 more
wiley   +1 more source

Fracture Mechanisms in Organic-Rich Shales: Role of Kerogen

, 2013
International audienceIn this work we study role of kerogen in the fracture properties of organic-rich shales and, in particular, in the ductility of shales. The presence of kerogen and clays in shale is known to increase the ductility. We propose here a
Hantal, György, Gyorgy Hantal, Franz J. Ulm, Pellenq, R.J.M., Laubie, Hadrien, Ulm, Franz-Joseph, Hadrien Laubie, Roland J. -M. Pellenq, Brochard, Laurent, Laurent Brochard   +9 more
core   +2 more sources

Linking palaeo‐wildfire to depositional environmental and ecological dynamics of an Early–Middle Pennsylvanian fluvial‐tidal transition zone—Palynology and pyrolysis evidence

The Depositional Record, Volume 12, Issue 1, February 2026.
The Pennsylvanian landscape in the Forest City basin was characterised by low‐lying lycopod tree and fern swamp forests with persistently high groundwater tables and adjacent fluvial channel, floodplain and upland environments. The occurrence of abundant charcoal within a specific thin interval in the Cherokee Group indicates substantial wildfire ...
Dustin Northrup, Emily Finzel, Pierre Zippi, Kevin Bohacs   +3 more
wiley   +1 more source

Surface Properties of Organic Kerogen in Continental and Marine Shale

, 2018
The adhesion energy of kerogen in continental and marine shale was innovatively discovered using the colloid probe technique with atomic-force microscopy (AFM).
Xiaoxiao Dong (558025), Jason Street (5547788), Shizhong Cheng, Quan Xu (554774), Hong Zhao, Shouceng Tian, Quan Xu, Xiaoxiao Dong, Panpan Zhang, Jason Street, Panpan Zhang (534098), Tianyu Wang (397547), Yusheng Chen (158039), Rui Zhang, Ling Fei, Shouceng Tian (3838084), Mao Sheng (2623360), Rui Zhang (13940), Tianyu Wang, Mao Sheng, Yusheng Chen, Ling Fei (1283046), Shizhong Cheng (5928887), Hong Zhao (325)   +23 more
core   +1 more source

Pyrolysis Kinetics of Lacustrine Shales from the Yanchang Formation: Revealing the Role of Kerogen Type in Shaping Hydrocarbon Generation and Expulsion Pattern

Geosciences
The Yanchang Formation in the Ordos Basin is a key target for continental shale oil exploration in China. Due to its complex geological background and diversified organic inputs, the hydrocarbon generation and accumulation in the lacustrine basin remain ...
Lingling Liao, Yifei Zhang, Yan Li, Yinhua Pan   +3 more
doaj   +1 more source

The Constructions and Pyrolysis of 3D Kerogen Macromolecular Models: Experiments and Simulations

Global Challenges, 2019
Kerogens are extracted from deep shales to study pyrolysis of deep shale samples. The 2D molecular models of kerogens are obtained by a series of physical and chemical experiments by which the macromolecular models of kerogens are constructed.
XiaoHe Wang, XianFu Huang, Kui Lin, Ya‐Pu Zhao   +3 more
doaj   +1 more source

Iron–Phosphorus–Carbon Coupled Cycling in Lacustrine System of Ordos Basin During the Middle Triassic

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 2, February 2026.
Abstract Widespread organic‐rich shales are associated with perturbations in productivity or preservation conditions; however, the major controlling factors, especially the phosphorus (P) and iron (Fe) interactions and their impacts on organic carbon burial in the paleolake ecosystem remain poorly understood.
Bo Wang, Rukai Zhu, Pengcheng Ju, Quanyou Liu, Weiming Xu, Peng Li, Wang Zhang, Xinping Liang   +7 more
wiley   +1 more source

Surface Chemistry and Atomic-Scale Reconstruction of Kerogen–Silica Composites

, 2018
Interest in gas shale, a novel source rock of natural gas, has increased tremendously in recent years. Better understanding of the kerogen-rock interaction is of crucial importance for efficient gas extraction and, hence, asset management. In this study,
Ulm, Franz-Josef, Hantal, Gyorgy Miklos, Brochard, Laurent Yves Yannick, Dias Soeiro Cordeiro, M. Natália, Pellenq, Roland Jm   +4 more
core   +1 more source

Structural characterization of Green River oil shale core segments and the kerogen isolated from these segments

, 2011
presentationThe goal is to obtain information about chemical structure of oil shale and its kerogen. This includes chemical characterization of the shale, the isolated kerogen, and the products of pyrolysis of both the shale and kerogen, and provides ...
Orendt, Anita M.; Birgenheier, Lauren P.; Solum, Mark S.; Pugmire, Ronald J.; Facelli, Julio C.; Locke, Darren; Chapman, Karena; Seifert, Soenke; Winans, Randall; Chupas, Peter
core  

π–π Stacking in Kerogen and Its Mechanical Impact [PDF]

Kerogen is a key source of hydrocarbon production through hydraulic fracturing. However, the direct correlation between the molecular structure and mechanical properties remains unclear.
Minor, Andrew M, Hull, Katherine L, Xie, Yule, Jorgens, Danielle M, Huang, Xi, Hosemann, Peter, Zhang, Ruopeng, Ophus, Colin, Bustillo, Karen C, Abousleiman, Younane, Xie, Yujun   +10 more
core   +1 more source