Deep sea Oxygen isotopic data indicated that there were at least three rapid cooling events in the Cenozoic Era, which happened respectively at 36 Ma,15 Ma and 2. 4 Ma BP.
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释义
深海氧同位素记录表明新生代曾发生至少三次快速变冷事件,它们分别发生在36,15和2.;4MaBP前后。
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