This work was granted by the National Natural Science Foundation of China (Grant nos.41702144;41802212),the State Key Laboratory of Organic Geochemistry,GIGCAS (Grant no.SKLOG-201908),and the Fundamental Research Funds for the Central Universities (Grant no.2652018234).The authors would like to thank the Qinghai Coal Geology 105 Exploration Team for kindly providing part of the data in this study.Kang Huiling and Susan Turner (Brisbane)are thanked for their help with English language of this manuscript.We also want to thank anonymous manuscript reviewers for their constructive suggestions and comments which significantly improved the quality of this manuscript.
TAN Furong, LI Yang, DU Fangpeng, LIU Shiming, CUI Weixiong, LIU Zhiwu, GENG Qingming, LU Ping.2021. Origin of the Gas Hydrate and Free Gas in the Qilian Permafrost, Northwest China: Evidence from Molecular Composition and Carbon Isotopes[J]. Acta Geologica Sinica(),95(2):602-616
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