搜索结果: 1-4 共查到“国际动态 理学 atmospheric oxygen”相关记录4条 . 查询时间(0.122 秒)
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Volcanic activity and changes in Earth's mantle were key to rise of atmospheric oxygen(图)
Volcanic activity changes Earth mantle were key rise atmospheric oxygen
2020/6/19
Oxygen first accumulated in the Earth's atmosphere about 2.4 billion years ago, during the Great Oxidation Event. A long-standing puzzle has been that geologic clues suggest early bacteria were photos...
Variations in atmospheric oxygen levels shaped Earth’s climate through the ages
oxygen levels Earth’s climate
2015/6/18
Variations in the amount of oxygen in Earth's atmosphere significantly altered global climate throughout the planet's history. Efforts to reconstruct past climates must include this previously overloo...
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The period of extended low oxygen, which spanned from roughly 2 to less than 1 billion years ago, was a time of remarkable chemical stability in the Earth's oceans and atmosphere. A University of Cali...
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Geobiologists Solve "Catch-22 Problem" Concerning the Rise of Atmospheric Oxygen(图)
Environmental Changes green plants carbon dioxide
2006/12/8