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CHARACTERICS OF YANSHANIAN VOLCANIC ROCK AND IT'S RELATION WITH METALLOGENESIS IN THE MIDDLE-LOW REACHES OF YANGTZE RIVER
Author(s): 
Pages: 47-55
Year: Issue:  1
Journal: VOLCANOLOGY & MINERAL RESOURCES

Keyword:  燕山期火山岩断陷火山岩盆地岩石组合成矿作用长江中下游地区;
Abstract: 笔者根据长江中下游基底构造特征、火山岩时空分布及其相互关系,对该区火山岩盆地进行了重新认定,划分出三个受北东-北北东向和近东西向两组岩石圈断裂控制的断陷火山盆地.在此基础上,依据火山活动特点及其与壳断裂的关系又将其划分为若干个亚盆地.本文系统论述了各盆地的火山岩演化、岩石组合及其地球化学特征;对内生金属矿床与火山岩的关系作了探讨,认为成岩物质主要来源于上地幔,成矿作用是火山活动的一部分,成矿物质主要来源于岩浆.
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