REE geochemistry of kerogen from Early Cambrian black rock series in western Hunan
文献类型：EI期刊论文
| 作者 | Guo Qingjun |
| 发表日期 | 2014 |
| 关键词 | Seawater Biogeochemistry Biological materials Geochemistry Kerogen Organic compounds Oxygen Rare earth elements Rocks |
| 英文摘要 | Organic matter from Early Cambrian black rock series in western Hunan was derived from organisms in the euphotic zone. For not interfered by the detrital component, REE geochemistry of organic matter can demonstrate paleoenvironmental characteristics of the upper seawater. As the main part of organic matter, kerogen is fully consistent with the modern seawater-like REE pattern which shows a progressive enrichment towards the heavier REE, depletion of Ce, positive anomalies of Y and no obvious anomalies of Eu. The characteristics of kerogen may trace paleoredox condition of upper seawater. The euxinic environment may have arised in the lower part of sections in the Yangtze area, and the depositional condition may have shifted to gradual oxidization in the upper part of sections. The negative Ce anomalies of bulk rocks are most probably derived from organic matter input. Gradual increase of Ce/Ce* values indicates increasing oxygen content of upper seawater, and weakening of euxinic environment of bottom seawater may result in rising of oxygen content of upper seawater. |
| 出处 | Diqiu Kexue - Zhongguo Dizhi Daxue Xuebao/Earth Science - Journal of China University of Geosciences
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| 卷 | 39期:3页:283-292 |
| 收录类别 | EI |
| 语种 | 英语 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/31145]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Guo Qingjun. REE geochemistry of kerogen from Early Cambrian black rock series in western Hunan. 2014. |
入库方式： OAI收割
来源：地理科学与资源研究所
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