Characterization of depositional conditions for lacustrine oil shales in the Eocene Jijuntun Formation, Fushun Basin, NE China

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• 作者：Sheng-Chuan Xu^a ; ^b ; ^{xusc1983@163.com} ; Zhao-Jun Liu^b ; Pu Zhang^a ; Jeremy M. Boak^c ; Rong Liu^b ; Qing-Tao Meng^b
• 关键词：Oil shale ; Depositional condition ; Fushun Basin ; Trace element ; Organic geochemistry ; Jijuntun Lakes
• 刊名：International Journal of Coal Geology
• 出版年：2016
• 出版时间：1 October 2016
• 年：2016
• 卷：167
• 期：Complete
• 页码：10-30
• 全文大小：3009 K
• 卷排序：167

文摘

Depositional conditions were reconstructed by using multiple geochemical proxies. Lean oil shales (OS) were deposited in ~ 20–30 m deep, (sub)oxic, fresh-water lakes. Rich OS were formed in ~ 100 m deep, anoxic, fresh- to mildly brackish-water lakes. Climate evolved from warm/humid into warm/humid to cool/arid conditions. Different organic matter types are reflected by biomarkers and trace elements.