Results 41 to 50 of about 4,128,607 (290)

Possible role of organic matter in radiocaesium adsorption in soils [PDF]

, 2002
The aim of this review is to examine the hypothesis that organic matter decreases the adsorption of radiocaesium on clay minerals. The factors that determine radiocaesium mobility and bioavailability in soil are briefly outlined to show why a ...
Zsolnay, A., Dumat, C., Dumat, Camille, Staunton, Siobhan, Staunton, S.   +4 more
core   +1 more source

Unexpected enrichment of nitrogen during the diagenetic evolution of sedimentary organic matter [PDF]

Fuel, 1984
This study examines the behaviour of nitrogen during coalification in two coal series: the sedimentologically homogeneous coal series of the Mahakam delta, Indonesia and a reference coal series composed of samples from several sources. The variations in the total nitrogen contents, in hydrolysable nitrogen, and in the natural isotopic abundance of 15N ...
Boudou, Jean-Paul, Mariotti, André, A., Oudin, J.L.   +2 more
openaire   +2 more sources

Genetic Mechanism of Pyrite in the Shale of the Longmaxi Formation and Its Influence on the Pore Structure: A Case Study of the Changning Area, South Sichuan Basin of SW China

Frontiers in Earth Science, 2022
Pyrite is a mineral that is commonly found in shale gas reservoirs. Its genetic mechanism and impact on pore and organic matter in shale gas reservoirs are critical for shale gas exploration.
Jiang He, Lan Yang, Xuewen Shi, Shengxian Zhao, Lieyan Cao, Shulin Pan, Feng Wu, Meng Wang, Meng Wang   +8 more
doaj   +1 more source

Natural organic matter - The relationship between character and treatability [PDF]

, 2004
The characterisation and treatment of natural organic matter are becoming more important to the water utilities in the UK and around the world. This paper looks at the relationship between bulk and fractionated organic material and the performance of ...
Bruce Jefferson, Jefferson, Bruce, Parsons, Simon A., Goslan, Emma H., Fearing, David Andrew, Emma H. Goslan, Simon A. Parsons, David A. Fearing, Jarvis, Peter, Peter R. Jarvis   +9 more
core   +1 more source

Study on organic matter depletion in argillaceous limestone of Leikoupo Formation of the Middle Triassic in the central Sichuan Basin: decoupling of organic matter development and preservation conditions under the background of saltwater algae control

Frontiers in Earth Science
The Anisian period of the Middle Triassic was a recovery period after the end Permian mass extinction. During this period, a set of organic rich limestone and shale were deposited in the Gypsum lagoon of the Leikoupo Formation in the Sichuan Basin ...
Yuhan Huang, Yan Wei, Huaguo Wen, Fei Huo, Xueyan Wu, Ruiyu Guo, Yuntao Liao, Yunbo Ruan, Huachuan Jiang   +8 more
doaj   +1 more source

Effect of Volcanic Events on Hydrocarbon Generation of Lacustrine Organic-Rich Shale: An Example of the Upper Triassic Galedesi Formation in the Hala Lake Depression, South Qilian Basin, China

Energies, 2022
The thermal evolution process of organic matter is associated with the complete hydrocarbon generation and expulsion process in shale, however, the thermal evolution of organic matter is a long process and cannot be realized without experimental ...
Jia Wang, Chaobin Zhu, Xianfeng Tan, Long Luo, Nan Jiang, Xuejiao Qu, Xuanbo Gao, Shengyu Li, Long Xiao, Haijun Liu   +9 more
doaj   +1 more source

Main controlling factors and evolutionary model of organic matter enrichment in the Upper Permian Dalong Formation, Lower Yangtze region, South China

Shiyou shiyan dizhi
The shales of the Upper Permian Dalong Formation in the Lower Yangtze region, South China, constitute important hydrocarbon source rocks. However, the dynamic evolution of the mechanisms and controlling factors governing organic matter enrichment remains
Yubing Ji, Chengcheng Zhang, Chaogang Fang, Long Teng, Jianqing Li, Jiehui Zhang, Jiangnan Yang   +6 more
doaj   +1 more source

The Role of Deep Geofluids in the Enrichment of Sedimentary Organic Matter: A Case Study of the Late Ordovician-Early Silurian in the Upper Yangtze Region and Early Cambrian in the Lower Yangtze Region, South China

Geofluids, 2020
Organic matter is the material basis for shales to generate hydrocarbon, as well as the main reservoir space and seepage channel for shale gas. When the thermal evolution degree is consistent, the organic carbon content in present shales is subject to ...
Kun Zhang, Jun Peng, Weiwei Liu, Bin Li, Qingsong Xia, Sihong Cheng, Yiming Yang, Yao Zeng, Ming Wen, Dongmei Liu, Yizhou Huang, Li Zhong, Pei Liu, Xiaojun Jiang   +13 more
doaj   +1 more source

Organic matter heterogeneity and shale oil significance in Triassic Zhangjiatan shale, Ordos Basin, China

Energy Exploration & Exploitation, 2022
Organic matter heterogeneity exerts an important impact on the generation, evaluation, and exploitation of shale oil resources. In the past, only a limited number of analytical samples that represented the contribution or influence of high or low organic
Xiaoyan Li, Jincai Tuo, Chenjun Wu, Honggang Xin, Mingfeng Zhang, Junwei Zheng, Xiaofeng Ma   +6 more
doaj   +1 more source

Sedimentary Environment Reconstruction and Organic Matter Enrichment Mechanisms in Various Lithofacies of the Lacustrine Shale: A Case Study of the Da’anzhai Member, Central Sichuan Basin, China

Applied Sciences
Jurassic lacustrine shale in the Sichuan Basin is a focal exploration area in China, while the pronounced heterogeneity presents challenges, necessitating detailed research as a prerequisite.
Yuting Peng, Yingxiao Fu, Senran Chen, Enze Wang   +3 more
doaj   +1 more source