Geochemical evidence of organic matter source input and depositional environments in the lower and upper Eagle Ford Formation, south Texas
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- 作者：Xun Suna ; Tongwei Zhanga ; tongwei.zhang@beg.utexas.edu" class="auth_mail" title="E-mail the corresponding author ; Yongge Sunb ; Kitty L. Millikena ; Dayang Sunb
- 关键词：Eagle Ford shale ; Biomarkers ; Redox condition ; Organic matter conversion ; Organo-sulfur ; Thermal maturity
- 刊名：Organic Geochemistry
- 出版年：2016
- 出版时间：August 2016
- 年：2016
- 卷：98
- 期：Complete
- 页码：66-81
- 全文大小：3184 K
文摘
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The lower Eagle Ford shales (LEFS) contain more organo-sulfur than the upper ones.
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Sulfur-rich reducing conditions in the LEFS are favorable for OM preservation.
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High content of aryl isoprenoids indicates photic zone anoxia developed in the LEFS.
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Extent of isomerisation of homohopanes and steranes is enhanced by sulfurisation.