A highly redox-heterogeneous ocean in South China during the early Cambrian (∿29-514 Ma): Implications for biota-environment co-evolution
详细信息 查看全文
- 作者：Chengsheng Jina ; Chao Lia ; chaoli@cug.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Thomas J. Algeoa ; b ; c ; Noah J. Planavskyd ; Hao Cuia ; Xinglian Yange ; Yuanlong Zhaoe ; Xingliang Zhangf ; Shucheng Xiea
- 关键词：Yangtze Platform ; Nanhua Basin ; Cambrian Explosion ; oceanic oxygenation ; euxinia ; iron speciation
- 刊名：Earth and Planetary Science Letters
- 出版年：2016
- 出版时间：1 May 2016
- 年：2016
- 卷：441
- 期：Complete
- 页码：38-51
- 全文大小：2028 K
文摘
- •
We study Fe–S–C–Al-trace element data from eight early-Cambrian sections from South China.
- •
We found a low sulfate and highly redox-heterogeneous ocean in South China in early Cambrian.
- •
We found a clear pattern that more complex biotas lived in more oxygenated waters by comparison.
- •
We propose that the “Cambrian Explosion” was likely a consequence of local oceanic oxygenation.
- •
Our results suggest that the influence of animals on early Cambrian ocean chemistry was limited.