caa a22 4500 445299320 CHVBK 20180317142552.0 cr unu---uuuuu 170323e20100101xx s 000 0 eng 10.1007/s11430-009-0081-4 doi (NATIONALLICENCE)springer-10.1007/s11430-009-0081-4 Geochemical evidence for strong ongoing methanogenesis in Sanhu region of Qaidam Basin [Elektronische Daten] [YanHua Shuai, ShuiChang Zhang, AiGuo Su, HuiTong Wang, BaoYuan Cai, Hui Wang] Sanhu depression of Qaidam Basin is the largest biogenic gas production region in China. Headspace samples were collected from two wells in this region, and hydrogen and propylene compounds were detected in these samples with a certain concentration. The stable hydrogen isotope ratio of H2 is relatively light (−700‰− −820‰). The stable carbon isotope ratio of propylene ranges from −27‰ to −40‰, which coincides with the rule of change of the stable carbon isotope of kerogen at the corresponding horizon. The characteristic analysis of sediments, structures, and Ar and He components in the region indicates that these microelement compounds are the product of degradation of organic substances by microorganisms, rather than from the mantle source, inorganic reaction or other sources. Detection of these components provides solid evidence for the strong ongoing methanogenesis in this region. Science in China Press and Springer Berlin Heidelberg, 2009 biogenic gas nationallicence hydrogen nationallicence propylene nationallicence stable carbon isotope nationallicence Qaidam Basin nationallicence Shuai YanHua Research Institute of Petroleum & Development, 100083, Beijing, China aut Zhang ShuiChang Research Institute of Petroleum & Development, 100083, Beijing, China aut Su AiGuo Research Institute of Petroleum & Development, 100083, Beijing, China aut Wang HuiTong Research Institute of Petroleum & Development, 100083, Beijing, China aut Cai BaoYuan Research Institute of Petroleum & Development, 100083, Beijing, China aut Wang Hui Research Institute of Petroleum & Development, 100083, Beijing, China aut Science in China Series D: Earth Sciences SP Science in China Press 53/1(2010-01-01), 84-90 1674-7313 53:1<84 2010 53 11430 https://doi.org/10.1007/s11430-009-0081-4 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11430-009-0081-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Shuai YanHua Research Institute of Petroleum & Development, 100083, Beijing, China aut NATIONALLICENCE 700 1- Zhang ShuiChang Research Institute of Petroleum & Development, 100083, Beijing, China aut NATIONALLICENCE 700 1- Su AiGuo Research Institute of Petroleum & Development, 100083, Beijing, China aut NATIONALLICENCE 700 1- Wang HuiTong Research Institute of Petroleum & Development, 100083, Beijing, China aut NATIONALLICENCE 700 1- Cai BaoYuan Research Institute of Petroleum & Development, 100083, Beijing, China aut NATIONALLICENCE 700 1- Wang Hui Research Institute of Petroleum & Development, 100083, Beijing, China aut NATIONALLICENCE 773 0- Science in China Series D: Earth Sciences SP Science in China Press 53/1(2010-01-01), 84-90 1674-7313 53:1<84 2010 53 11430 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer