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贵州早二叠世玄武岩喷发环境及其古海洋效应研究
引用本文:田景春,卢武长,尹观.贵州早二叠世玄武岩喷发环境及其古海洋效应研究[J].成都理工大学学报(自然科学版),1993(1).
作者姓名:田景春  卢武长  尹观
作者单位:成都地质学院沉积地质矿产研究所 (田景春),成都地质学院岩矿分析测试中心 (卢武长),成都地质学院岩矿分析测试中心(尹观)
摘    要:二叠纪是中国南方火山活动较为强烈的时期之一,此时贵州省境内形成了大面积的玄武岩。文章通过岩石学、地球化学、大地构造学研究论证了早二叠世玄武岩喷发时为大陆裂谷环境,从宏观、微观岩石学特征确定了分布区东部的早二叠世玄武岩为海底喷发的产物,并详细研究了它对古海洋沉积学、古海洋地球化学的影响。

关 键 词:早二叠世  玄武岩喷发  大陆裂谷  古海洋效应

THE RESEARCH ON THE EARLY PERMIAN BASALT ERUPTION ENVIRONMENT IN GUIZHOU AND IT'S EFFECT TO THE PALEOCEANOGRAPHY
Tian Jingchun Lu Wuchang Yin Guang.THE RESEARCH ON THE EARLY PERMIAN BASALT ERUPTION ENVIRONMENT IN GUIZHOU AND IT''''S EFFECT TO THE PALEOCEANOGRAPHY[J].Journal of Chengdu University of Technology: Sci & Technol Ed,1993(1).
Authors:Tian Jingchun Lu Wuchang Yin Guang
Affiliation:Tian Jingchun Lu Wuchang Yin Guang
Abstract:The Permian is a period of intensive volcanic activity in the south China. During this period, there was formed a large area of basalt in Guizhou. Based on the petrology, geochemistry and petrotectonics analyses, it can be determined that the tectonic background of the early Permian basalt eruption was continental rift. From the field work and laboratory research we know that the basalt of early Permian in east part of study area was formed under the sea water. Furthermore, the authors discuss the effect of the basalt eruption on the sedimentology and geochemistry of paleoceanography.
Keywords:early Permian  basalt eruption  continental rift  paleoceanographic effect
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