四川西部三江中段成矿带地质构造演化、成矿特征与成矿系列  

Geologic-tectonic Evolution,Ore-forming Features and Minerogenetic Series of Deposits in the Middle Sector of the Nujiang-Lancang-Jinsha Rivers Metallogenic Belt

作　　者：付小方[1] 侯立玮[1] 俞如龙[1] 王登红[2] 喻成燕[1] 

机构地区：[1]四川省地质调查院,成都610081 [2]中国地质科学院矿产资源研究所,北京10037

出　　处：《四川地质学报》2006年第4期204-209,共6页Acta Geologica Sichuan

基　　金：中国西部重要成矿区带矿产资源潜力评估项目(200420190004)资助

摘　　要：以板块理论为指导,提出本区地质演化阶段四分方案,总结了各阶段相关矿产时空分布特征;阐明成矿地质条件的复杂性、成矿作用的多样性、矿床类型丰富性、成矿元素特征性和矿床规模趋大性等特点;在成矿时代上指出三叠纪、侏罗—白垩纪和古近纪—新近纪为主要成矿期;在成矿构造环境上,以岛弧、弧后盆地、重熔花岗岩带、走滑剪切带及其拉分盆地为有利成矿场所,并根据成矿系列的定义厘定了成矿系列。The present paper divides the geological evolution in this region into four stages and describes space - time distribution of mineral resources in various stages based on the theory of plate tectonics. The complexity of ore - forming conditions, diversity of ore- formation and deposit type, specific characteristics of ore - forming elements and on a scale of ore deposits are pointed out.On metallogenic epoch, major metallogenic epoch were Triassic, Jurassic - Cretaceous and Lower Tertiary - Upper Tertiary. On metallogenic geological setting, major ore - formation occurred in island arc, back- arc basin, anatexis granite belt, strike- slip shear zone anti pull- apart basin. The minerogenetic series of ore deposits in this region is regulated on the basis of the definition of minerogenetic series of ore deposits.

关 键 词：地质构造演化 成矿特征 成矿系列 三江中段 四川西部 

分 类 号：P542[天文地球—构造地质学] P611[天文地球—地质学]