灾变事件引起鄂西晚元古代缺氧海洋

LATE PROTEROZOIC ANOXIC OCEANS GENERATED BY CATASTROPIC EVENTS IN WESTERN HUBEI,CHINA

Yichang Institute of Geology and Mineral Resources, Chinese Academy of Geological Sciences

摘要: 作者根据白果园银钒矿含矿系中新发现的钾长石微球粒和碳同位素亏损,提出一种新见解:该矿床成因与650Ma前的海洋环境危机有关。本文简要地介绍有关缺氧事件的重要信息,以便揭示扬子地台上前寒武纪海洋演化的奥秘。晚元古代海洋危机是由行星撞击地球或火山作用引起的灾变事件。
- 晚元古代 /
- 缺氧海洋 /
- 灾变事件 /
- 负δ¹³C异常 /
- 钾长石微球粒
Abstract: The author has proposed a new explanation to link an oceanic environment crisis 650 Ma ago to the origin of the Baiguoyuan Ag-V deposit on the basis of the new finding of K-feldspar microspherules and negative carbon isotopic shift in the ore-bearing units^[1,2].In this paper,the important information about the anoxic events is presented to reveal the mystery of Precambrian oceanic evolution on the Yangtze platform.