中国地质2012，Vol.39Issue(4)：871-886,16.
华南燕山早期晚阶段两类花岗质岩体与成矿作用:以赣南—闽西南地区为例
Metallogenesis of two types of late Early Yanshanian granitoids in South China: Case studies of south Jiangxi and southwest Fujian
摘要
Abstract
Late-stage Early Yanshanian granitoids are widely distributed in South China and closely related to metallogenesis. They have two different distribution patterns, being EW-trending in Nanling and NE-trending in Wuyi area. Granitic rocks formed in two different tectonic settings have different geochemical characteristics. The little stocks in southern Jiangxi Province are closely related to W and Sn mineralization, quite different from things of big batholiths. The little stocks and big batholiths might have been formed by partial melting of the crust-derived argillaceous-arenaceous metasedimentary rocks related to Proterozoic crust; nevertheless, fluid was present during magmatic evolution and experienced highly differentiation and evolution in the formation of little stocks, whereas NE-extending granitoids were probably formed by partial melting of argillaceous metasedimentary rocks related to Mesoproterozoic crust. During that period, the mainland lithosphere of Nanling and adjacent regions belonged to an extensional setting, southeast China was mostly under the tectonic framework of East Asia active continental margin, and the collision and compressional role of the Pacific plate toward East Asian continental margin began to emerge.关键词
燕山早期/岩浆作用/成矿/构造背景Key words
Early Yanshanian/ magmatism/ metallogenesis/ tectonic setting分类
天文与地球科学引用本文复制引用
赵希林,刘凯,毛建仁,叶海敏..华南燕山早期晚阶段两类花岗质岩体与成矿作用:以赣南—闽西南地区为例[J].中国地质,2012,39(4):871-886,16.基金项目
中国地质调查局地质调查项目(1212011085446、1212010611805、1212010911012、1212011120134)资助. （1212011085446、1212010611805、1212010911012、1212011120134）
