He thinks the liberation of methane stored at the bottom of the ocean in structures calledclathrates is the most likely culprit.
他认为出现这种现象的最可能诱因是甲烷气体的释放,这些甲烷气体释放前存储在海底称作 笼形包合物 的结构中。
The alternative, that the carbon came from the volcanoes, is unlikely because the spike ismuch shorter than the period of volcanic activity.
另一种说法是这种碳元素来自于火山,但这不可能,因为碳数量激增期比火山活动期要短得多。
Methane is a greenhouse gas far stronger than carbon dioxide, so the consequence wouldhave been a rapid warming of the climatea phenomenon that the rocks suggest didactually happen.
甲烷是一种比二氧化碳浓烈得多的温室气体,它的释放会导致地球气候迅速升温岩石层研究也表明这种现象确实发生过。
This is not the first time a methane burp has been blamed for an extinction.
人类已经不是第一次将物种灭绝归因于甲烷气体的脉冲式释放。
Though the Cretaceous asteroid cleared the stage,
尽管白垩纪时期的小行星灭绝了居统治地位的恐龙,
mammals did not really get going until 10m years later, in the Eocene epoch.
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