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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...
Geologists are letting the air out of a nagging mystery about the development of animal life on Earth.
Scientists have long speculated as to why animal species didn’t flourish sooner, once sufficient...
Red jasper cored from layers 3.46 billion years old suggests that not only did the oceans contain abundant oxygen then, but that the atmosphere was as oxygen rich as it is today, according to geologis...