News Release

雪球地球时期的海洋充氧作用

Peer-Reviewed Publication

Proceedings of the National Academy of Sciences

Iron-Rich Rocks of Death Valley

image: The iron-rich rocks of Death Valley (California) provide a window into the Earth's most severe ice age. view more 

Credit: Image courtesy of Maxwell A. Lechte.

在7.20亿年前到6.35亿年前的雪球地球冰期沉积下来的沉积物里的铁层的铁同位素比例以及铈异常,表明了支持冰原陆地线附近的需氧生态系统的充氧海水的存在,这很可能是由于来自冰原基础的充氧的融水的输入,这提示了需氧真核生物如何可能在长期海洋缺氧时期存活下来。

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