iridium anomaly
常見(jiàn)例句
- The dating of the stable isotope of the egg shell and the enrichment anomaly of Iridium is used to inquire into the extinction of the dinosaurs.
利用測(cè)定蛋殼的穩(wěn)定同位素和銥元素富集異常探討恐龍絕滅； - After discovery of iridium anomaly in Early Cambrian stone coal in Hunan province, scientistsbegan to guess the possibility of a meteorite impact event from geochemical aspects.
湖南省早寒武世石煤層的銥異常發(fā)現(xiàn)之後，人們紛紛從地球化學(xué)方麪推測(cè)一次隕石撞擊事件的可能性。 - Eubrontes giganteus, for example, is there a mere 10, 000 years after the iridium anomaly.
ECONOMIST: The rise of the dinosaurs - Both an iridium anomaly and a fern spike appear in rocks at the end of the Triassic, too.
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