摘要
本文简介了80年代以来二叠一三叠纪过渡期地质灾变事件研究最新进展,包括生物集群绝灭事件,海水进退事件,火山爆发事件.铱等元素异常与撞击事件,稀土元素、δ^(13)C、δ^(18)O异常与灾变事件,微球粒与灾变事件,灾变群及其与集群绝灭的关系.
The new advancements in the research of geological catastrophic events of Permo-Triassic transitional stage in 1980' s are briefly summarized in this paper. These include mass extinction event, transgression-regression event, volcanic eruption event. Ir anomaly and impact event, REE, δ13C. δ18O anomalies, and microspherules and catastrophic events. The paper also discusses the relationship between catastrophic-event groups and mass extinction.
出处
《地质科技情报》
CAS
CSCD
北大核心
1991年第3期37-41,共5页
Geological Science and Technology Information
基金
国家自然科学基金资助项目成果之一
