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赣南—粤北晚中生代火山岩系划分和时代讨论
引用本文:巫建华,周维勋.赣南—粤北晚中生代火山岩系划分和时代讨论[J].地质论评,2000,46(4):362-370.
作者姓名:巫建华  周维勋
作者单位:1. 南京大学地球科学系,210093;华东地质学院,江西临川,344000
2. 华东地质学院,江西临川,344000
3. 南京大学地球科学系,210093
摘    要:根据不整合和岩石组合特征,赣南-粤北晚中生代火岩系自上而下划分为余田群、莲花寨群和版石群,再根据岩性岩相特征,结合火山旋回分析,余田群、莲花寨群和版石群均可进一步划分为两个组:余田群下部称水头迳组、上部称菖薄组,莲花塞群下部称上丁组、上部称鸡笼嶂组,版石群下部称合水组,上部称优胜组,菖薄组的同位素年龄为176~147.6Ma,峰值为170~160Ma,属中我世;鸡笼嶂组同位素年龄为154~1389

关 键 词:侏罗纪  白垩纪  火山岩系  地层划分  赣南-粤北

Stratigraphic Division and Geologic Era of Mesozoic Era Volcanic Rock Series in South Jiangxi-North Guangdong
Wu Jianhua Zhou Weixun Zhang Bangtong.Stratigraphic Division and Geologic Era of Mesozoic Era Volcanic Rock Series in South Jiangxi-North Guangdong[J].Geological Review,2000,46(4):362-370.
Authors:Wu Jianhua Zhou Weixun Zhang Bangtong
Institution:Wu Jianhua Zhou Weixun Zhang Bangtong Department of Earth Sciences,Nanjing University,Nanjing, East China Geological Institute,Linchuan,Jiangxi
Abstract:The paper analyzes the actuality and the exiting question about the stratigraphic division of the Mesozoic volcanic rock series in South Jiangxi-North Guangdong. The paper brings forward that the volcanic rock series is divide into three volcanic rock series. The lower volcanic rock series is called the Yutian Group, which can be subdivided into the Shuitoujing Formation and Changpu Formation;the middle volcanic rock series is called the Lianhuazhai Group, which can be subdivided into the Shangding Formation and Jilongzhang Formation; the upper volcanic rock series is called the Banshi Group, which can be subdivided into the Heshui Formation and Yousheng Formation. Isotopic ages, show that the Yutian Group is the Middle Jurassic, Lianhuazhai Group Upper Jurassic, Banshi Group Early Cretaceous Late Cretaceous.
Keywords:Jurassic  Cretaceous  volcanic rock series  stratigraphic division  South Jiangx-i-North Guangdong
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