摘要
<正>自中侏罗世以来,冈瓦纳大陆在地幔柱的作用下发生裂解,组成冈瓦纳大陆的各个陆块(如非洲、南极洲、澳大利亚和印度)在分离之后向着不同的方向漂移。值得注意的是,印度大陆从冈瓦纳大陆裂解之后,在90 Ma左右以及~65-50 Ma期间发生了两幕高速漂移事件,且都伴随地幔柱上涌和大火成岩省的侵入。其中在68-66 Ma之间印度板块漂移速率陡增,并在随后的15 Ma中维持10-12 cm/a
引文
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