Origin of the Gas Hydrate and Free Gas in the Qilian Permafrost, Northwest China: Evidence from Molecular Composition and Carbon Isotopes

The Qilian permafrost of the South Qilian Basin (SQB) has become a research focus since gas hydrates were discovered in 2009. Although many works from different perspectives have been conducted in this area, the origin of gas from gas hydrate is still controversial. Molecular composition and carbon...

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Veröffentlicht in:	Acta geologica Sinica (Beijing) 2021-04, Vol.95 (2), p.602-616
Hauptverfasser:	TAN, Furong, LI, Yang, DU, Fangpeng, LIU, Shiming, CUI, Weixiong, LIU, Zhiwu, GENG, Qingming, LU, Ping
Format:	Artikel
Sprache:	eng
Schlagworte:	alkane gas origin Alkanes Biodegradation Boreholes Carbon carbon isotope Carbon isotopes Chemical composition Congeners Crude oil gas hydrate Gas hydrates Gases Hydrates Isotopes Jurassic Maturity Methane Natural gas Oil exploration Organic matter Permafrost Petroleum Reflectance Resource exploration Sediments South Qilian Basin Thermal decomposition Thermal degradation thermal maturity Triassic uunconventional energy
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