Geochemistry and sedimentology of the Upper Ordovician–lower Silurian black shale in the northern margin of the Upper Yangtze Platform, South China: implications for depositional controls on organic-matter accumulation
作者: B. XiaoS. G. LiuB. RanZ. W. Li
作者单位: 1State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation , Chengdu University of Technology , Chengdu , China
2;College of Energy Resources , Chengdu University of Technology , Chengdu , China
刊名: Australian Journal of Earth Sciences, 2020, Vol.67 (1), pp.129-150
来源数据库: Taylor & Francis Journal
DOI: 10.1080/08120099.2019.1626765
关键词: ShaleLithofaciesRedox conditionsPaleoproductivityOrganic-matter accumulationUpper Ordovician–lower Silurian
原始语种摘要: Abstract(#br)Organic-rich black shales from the Upper Yangtze Platform from the Upper Ordovician and lower Silurian are considered excellent source rocks and unconventional reservoirs of hydrocarbons in South China. This research combined geochemical analyses and detailed sedimentological observations to investigate the depositional controls on organic-matter abundance in the prolific black mudstone of the Wufeng Formation and Long-1 Member of the lower Silurian Longmaxi. Six primary lithofacies deposited at variable marine water depths and under different water column chemistries were identified from a ∼50 m-long profile based on microscopic observations of sediment texture and structure, and analyses of total organic carbon (TOC) content, major and trace-element abundances, and pyrite...
全文获取路径: Taylor & Francis  (合作)
影响因子:1.468 (2012)

  • Silurian 志留纪
  • accumulation 堆积
  • Ordovician 奥陶纪的
  • depositional 沉积作用的
  • matter 物质
  • shale 页岩
  • Upper 上方
  • sedimentology 沉积学
  • lithofacies 岩相
  • northern 北方的