Biodegradation characteristics of oil shale in the Permian Lucaogou Formation in the southeast of the Junggar Basin, China: implications from organic geochemistry
作者: Mingming ZhangZhao Li
作者单位: 1Key Laboratory of Geographical Processes and Ecological Security in Changbai Mountains, Ministry of Education, Northeast Normal University, Changchun 130024, China / Shandong University of Science, Qingdao 266590, China; e-mail 2114990442@qq.com
2Strategic Research Center of Oil and Gas Resources, Ministry of Land and Resources, Beijing 100034, China
刊名: Oil Shale, 2019, Vol.36 (4), pp.501-513
来源数据库: Estonian Academy Publishers Journal Database
DOI: 10.3176/oil.2019.4.04
关键词: Biodegradation characteristicsLucaogou Formation oil shaleOrganic geochemistryJunggar Basin.
原始语种摘要: The Permian Lucaogou Formation oil shale in the southeast of the Junggar Basin is the oldest oil shale in China. In this study, the biodegradation characteristics of the oil shale are investigated based on organic geochemistry. The analytical results show that the biodegraded oil shale contains large humps of unresolved complex mixtures (UCMs) and is depleted of n-alkanes and acyclic isoprenoids (pristine (Pr), phytane (Ph), iC18, iC17, iC16, iC15 and iC14). Furthermore, C14–C16 bicyclic terpanes are completely preserved. It can be concluded that the biodegradation level of the Lucaogou Formation oil shale is PM1–PM2. In addition, the values of aromatic hydrocarbon proxies (methyldibenzothiophene/dibenzothiophene (MDBT/DBT), dimethyldibenzothiophene/methyldibenzothiophene (DMDBT/MDBT),...
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关键词翻译
关键词翻译
  • shale 页岩
  • China 中国
  • geochemistry 地球化学
  • Basin 水池
  • Permian 二叠纪
  • phytane 10
  • hydrocarbon 碳氢化合物
  • biodegradation 生物降解酌
  • southeast 东南
  • TMN True Mach Number