Sedimentary organic matter record of Early Cretaceous environmental changes in western Liaoning Province, NE China
详细信息 查看全文
- 作者：Yan Lia ; b ; Zhiguang Songa ; zsong@gig.ac.cn" class="auth_mail" title="E-mail the corresponding author ; Xin-xing Caoa ; b ; Simon C. Georgec
- 关键词：Hydrocarbons ; Biomarkers ; Carbon isotopic composition ; Volcanic activity ; Yi-xian Formation ; Early Cretaceous
- 刊名：Organic Geochemistry
- 出版年：2016
- 出版时间：August 2016
- 年：2016
- 卷：98
- 期：Complete
- 页码：54-65
- 全文大小：2197 K
文摘
- •
Well preserved low maturity lacustrine sediments containing volcanic ash were studied.
- •
Si-he-tun sediments were deposited in an anoxic water column, at times stratified.
- •
C24 17,21-secohopane has a distinct source associated with the Jehol Biota fossils.
- •
The dominant n-alkane varied as the climate changed from warm and humid to arid.
- •
δ13C values for long-chain n-alkanes reflect an influence of volcanic activity.