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catastrophism n.1.【地質學;地理學】災變說。2.大難難免論,劫數難...

catatonia

The iridium layer commonly used to support catastrophism fits into this theory as evidence for the extreme volcanism that would have been produced by the eruption of larasia and gondwana 至于那個支持災變說的銥異常層,則可能是拉拉西亞和岡納德萬噴發時特別強大的火山作用的產物。