古太平洋构造域的岩浆作用与成矿  

Magmatism and Mineralization Induced by Paleo-Pacific Slab Subduction

作　　者：黄方[1] 陈福坤[1] 杨晓勇[1] 闫峻[2] 肖益林[1] 秦礼萍[1] 谢建成[1] 黄建[1] 汪方跃[2] 沈骥[1] 邓江洪[1] 杨一增[1] 

机构地区：[1]中国科学院壳幔物质与环境重点实验室中国科学技术大学,合肥230026 [2]资源与环境工程学院矿床成因与勘查技术研究中心合肥工业大学,合肥230009

出　　处：《矿物岩石地球化学通报》2017年第4期551-556,共6页Bulletin of Mineralogy, Petrology and Geochemistry

基　　金：国家重点研发计划项目(2016YFC0600404)

摘　　要：燕山期中国东部出现了大规模的岩浆活动和成矿事件,探明其发生的地球化学动力学背景以及矿床成因机制,对理解中国东部中生代以来构造格局转变和指导找矿都具有重要意义。本文将从以下5个方面入手,探索古太平洋构造域的岩浆作用与成矿机制:(1)下扬子和江南隆起区燕山期岩浆-成矿作用研究;(2)中国东部燕山期成矿与不成矿埃达克岩及中-新生代玄武岩研究;(3)东秦岭造山带中生代岩浆作用与成矿研究;(4)不同类型钼矿床的钼同位素研究;(5)中国中东部燕山期富碱侵入岩石/正长花岗岩研究。Large-scale magmatism and mineralization events occurred in eastern China during Yanshanian. Knowledge of geodynamic background for magmatism and the mechanism for mineralization is critical for us to understand the changes of tectonic framework of eastern China since Mesozoic and accomplish ore exploration. In this study,five aspects of work will be carried out,including（ 1） Study on the Yanshanian magmatism and metallogenesis in the Cambrian Yangtze Region;（ 2） Metal stable isotopic systematics of ore-bearing and ore-barren adakites and Mesozoic-Cenozoic basalts in eastern China;（ 3） Late Mesozoic magmatism and mineralization in the eastern Qinling orogenic belt;（ 4） Comparative study of the Mo isotopic compositions in different types of molybdenite;（ 5） Study on Yanshanian alkaline rocks/moyite in eastern China. These studies provide a framework for investigating magmatism and ore generation mechanisms in Paleo-Pacific subduction systems.

关 键 词：中国东部 古太平洋构造域 岩浆作用 成矿作用 

分 类 号：P588.11[天文地球—岩石学] P612[天文地球—地质学]