摘要
<正>二叠纪是地球演化历史中的一个重要时期,全球多个大火成岩省在这一时期喷发,若干重大全球事件(如双生物大灭绝、海水极度缺氧、海平面下降以及地磁场倒转等)也在这一时期发生。广泛分布于我国滇、川、黔三省的峨眉山大陆溢流玄武岩是我国境内目前唯一被国际学术界认可的大火成岩省。研究认为,峨眉山玄武岩喷发于约259Ma,终止于259.1±0.5Ma,对应瓜德鲁普统-乐平统界限。地幔柱
引文
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4.Zhong,Y.T.,He,B.,Mundil,R.,et al.CA-TIMS zircon U-Pb dating of felsic ignimbrite from the Binchuan section:Implications for the termination age of Emeishan large igneous province.Lithos,2014,204,14-19.
5.徐涛,张忠杰,刘宝峰,等.峨眉山大火成岩省地壳速度结构与古地幔柱活动遗迹:来自丽江-清镇宽角地震资料的约束.中国科学:地球科学,2015,45(5):561-576.