Phosphorus and the gust of fresh air

GABRIEL M. FILIPPELLI

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Phosphorus and the gust of fresh air

机译：磷和阵阵新鲜空气

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The rapid diversification of animal (metazoan) life that started at the end of the late Proterozoic eon, about 700 million years ago, marked a turning point in Earth's biological systems. The increase in atmospheric oxygen that occurred around this time certainly had something to do with this, by providing adequate oxidant for respiration and a sufficient stratospheric ozone layer for protection from ultraviolet radiation. But perhaps the end of the widespread 'snowball Earth' glaciations, which covered most of the land surface and oceans in ice, may have been a factor. Could the rapid increase in atmospheric oxygen be somehow related to these glaciations?

机译：动物（metazoan）生命的迅速多样化始于大约7亿年前的元古代，这标志着地球生物系统的转折点。通过提供足够的呼吸用氧化剂和足够的平流层臭氧层来保护免受紫外线辐射，大约在这个时候发生的大气中氧气的增加肯定与此有关。但是，覆盖大部分陆地和冰层海洋的“雪球地球”冰河的终结也许是一个原因。大气中氧气的迅速增加可能与这些冰川形成某种关系吗？

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来源
《Nature》 |2010年第7319期|p.1052-1053|共2页
作者
GABRIEL M. FILIPPELLI;
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作者单位

Department of Earth Sciences, Indiana University-Purdue University Indianapolis (IUPUI), Indianapolis, Indiana 46202, USA;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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正文语种 eng
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Phosphorus and the gust of fresh air

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