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Minerals (Basel, Switzerland)The characteristics and evolution of fibrous calcite veins in organic-rich shales have gained significant attention due to the recent advancements in shale oil and gas exploration.
Shu Jiang, Wei Wei, Jingyu Zhang
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Marine and Petroleum Geology, 2018
Abstract Organic geochemical and trace element analysis of a suite of 33 samples collected from the Shangsi section of the Upper Permian Dalong Formation, located near Guangyuan in the northwestern Sichuan Basin, have been used to better understand the marine depositional environment of its shale lithofacies.
Zhifu Wei, Gen Wang, Yongli Wang
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Abstract Organic geochemical and trace element analysis of a suite of 33 samples collected from the Shangsi section of the Upper Permian Dalong Formation, located near Guangyuan in the northwestern Sichuan Basin, have been used to better understand the marine depositional environment of its shale lithofacies.
Zhifu Wei, Gen Wang, Yongli Wang
exaly +2 more sources
Frontiers of Earth Science, 2007
The Late Permian Dalong Formation in Hubei, Hunan, Guizhou and Guangxi in South China could be subdivided into several sedimentary types according to the lithology, indicative of the great spatial variations of both the lithology and sedimentary facies. The Dalong Formation deposited during the highest transgression of Late Permian, in particular under
Qinglai Feng
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The Late Permian Dalong Formation in Hubei, Hunan, Guizhou and Guangxi in South China could be subdivided into several sedimentary types according to the lithology, indicative of the great spatial variations of both the lithology and sedimentary facies. The Dalong Formation deposited during the highest transgression of Late Permian, in particular under
Qinglai Feng
exaly +2 more sources
Marine and Petroleum Geology, 2021
Abstract The organic-rich shales of the upper Permian Dalong Formation in the middle Yangtze area are considered an important shale gas exploration horizon. However, the origin of siliceous matter and the mechanism of organic matter enrichment are still controversial.
Wei Wu +9 more
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Abstract The organic-rich shales of the upper Permian Dalong Formation in the middle Yangtze area are considered an important shale gas exploration horizon. However, the origin of siliceous matter and the mechanism of organic matter enrichment are still controversial.
Wei Wu +9 more
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Journal of China University of Geosciences, 2008
ABSTRACT Paired organic and carbonate carbon isotope compositions of Late Permian Wujiaping and Dalong formations at Shangsi, Northeast Sichuan were analyzed by MAT 251. An abrupt negative excursion in the two isotope records was observed in the middle part of Dalong Formation, in association with a drop in the carbon isotope difference of the two ...
Genming Luo
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ABSTRACT Paired organic and carbonate carbon isotope compositions of Late Permian Wujiaping and Dalong formations at Shangsi, Northeast Sichuan were analyzed by MAT 251. An abrupt negative excursion in the two isotope records was observed in the middle part of Dalong Formation, in association with a drop in the carbon isotope difference of the two ...
Genming Luo
exaly +2 more sources
Journal of China University of Geosciences, 2008
ABSTRACT The redox sensitive elements, molybdenum (Mo) and uranium (U), in marine sediments from the latest Permian Dalong Formation at the Shangsi Section, Northeast Sichuan, South China, were analyzed by inductively coupled plasma mass spectrometry (ICP-MS) to determine their response to a range of redox conditions, and to estimate the organic ...
Jin Wang, Xinong Xie
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ABSTRACT The redox sensitive elements, molybdenum (Mo) and uranium (U), in marine sediments from the latest Permian Dalong Formation at the Shangsi Section, Northeast Sichuan, South China, were analyzed by inductively coupled plasma mass spectrometry (ICP-MS) to determine their response to a range of redox conditions, and to estimate the organic ...
Jin Wang, Xinong Xie
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Marine and Petroleum Geology, 2019
Abstract Black shales are economically and scientifically important because they are commonly associated with high-quality hydrocarbon source rocks and metal accumulations formed during periods of abrupt environmental change. Organic-rich siliceous rocks of the Late Permian Dalong Formation developed extensively within Middle–Upper Yangtze region ...
Zhiwei Liao +4 more
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Abstract Black shales are economically and scientifically important because they are commonly associated with high-quality hydrocarbon source rocks and metal accumulations formed during periods of abrupt environmental change. Organic-rich siliceous rocks of the Late Permian Dalong Formation developed extensively within Middle–Upper Yangtze region ...
Zhiwei Liao +4 more
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Palaeogeography, Palaeoclimatology, Palaeoecology, 2021
Abstract The organic-rich siliceous rock was developed worldwide during the Late Permian which contains plenty of information about paleoenvironment. This study reveals the vertical variation in organic matter enrichment of the Upper Permian Dalong Formation in the northern Sichuan Basin, which was related to the expansion of the Paleo-Tethys Ocean ...
Yamin Yu +5 more
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Abstract The organic-rich siliceous rock was developed worldwide during the Late Permian which contains plenty of information about paleoenvironment. This study reveals the vertical variation in organic matter enrichment of the Upper Permian Dalong Formation in the northern Sichuan Basin, which was related to the expansion of the Paleo-Tethys Ocean ...
Yamin Yu +5 more
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Marine and Petroleum Geology, 2019
Abstract The very high temperature at the center of a hydrothermal system is detrimental for the deposition of organic-rich sediments. However, it's not known how the petroleum source rock develops at the boundary of a hydrothermal system where the seawater temperature was only slightly elevated. The petroleum generation potential, using pyrolysis-GC,
Yu Zhang +4 more
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Abstract The very high temperature at the center of a hydrothermal system is detrimental for the deposition of organic-rich sediments. However, it's not known how the petroleum source rock develops at the boundary of a hydrothermal system where the seawater temperature was only slightly elevated. The petroleum generation potential, using pyrolysis-GC,
Yu Zhang +4 more
openaire +3 more sources