东川矿区火山岩—侵入岩的改造—成矿作用  

ON THE METALLOGENESIS & REFORMATION OF VOLCANIC ROCK—INTRUSIVE ROCK IN DONGCHUAN REGION

作　　者：薛步高[1] 

机构地区：[1]云南省乡镇企业局,昆明650011

出　　处：《云南地质》2009年第4期351-366,共16页Yunnan Geology

摘　　要：东川大型—超大型铜、铁、金综合矿区,受改造形成的层状富铜矿;后生的含银脉状铜矿;普遍伴生Nb2O5的后生含铜磁铁矿及成因与深部隐伏碱性岩有关的金矿,其工业矿体的形成都与多旋回火山—岩浆(晋宁—澄江期与燕山—喜马拉雅期为主)的改造、成矿作用有关。The formation of commercial ore body of bedded Cu - rich deposit formed by reformation, epigenetic Ag - high veined Cu deposit, epigenetic Cu - bearing magnetite deposit general- ly with associated Nb205 and Au deposit related with deep blind alkaline rock in genesis is related with reformation--metallogenesis of muhicycle volcanism--magrnatism （mainly in the Jinning - Chengjiang period and Himalayan period）.

关 键 词：火山-次火山岩 侵入岩 成矿改造 矿床多类成因 云南东川 

分 类 号：P588.12[天文地球—岩石学]