哀牢山金矿带原生金矿床的类型及控矿条件  

Types and Ore-controlling Conditions of Primary Gold Deposits in the Ailaoshan Gold Ore Belt

作　　者：俞广钧[1] 

机构地区：[1]昆明工学院地质系

出　　处：《地质与勘探》1990年第5期3-11,共9页Geology and Exploration

摘　　要：哀牢山金矿带位于红河、哀牢山构造变质带的西亚带.矿带由一系列不同成因和不同类型的金矿床组成.矿床受地层(上志留统、中-下志留统金厂组矿源层)、岩性(浅变质基性火山-碎屑沉积岩)、多期活动的压扭性断裂带(哀牢山深大断裂及其次级构造)和矿源岩(超基性、基性、中-酸性岩浆岩)成矿条件控制.矿床是在矿源层、矿源岩基础上,经过燕山期构造-岩浆活动的改造而富集形成的.The Ailaoshan gold ore belt is located at the west subzone of the Honhe- Ailaoshan streture mctamorphic zone. The belt consists of a series of gold deposits of different genesis and types. These depositsare controlled by strata (source beds of the upper Silurian and Jinchang formation of middle-lower Silurian epoch), lithology (low grade metamorphic basic volcanic-clastic sedimentary rocks), multiphase compression-torsion fracture zones (the Ailaoshan lage deep fault and its secondary structures), and the sourcerocks (ultrabasics, basics, neutral-acid magmatic rocks). The gold deposits were formed on the foundation of the source beds and source rocks through reworking and enrichment of Yenshan structuremagmatic activities.

关 键 词：金矿 矿床 类型 控矿条件 金矿带 

分 类 号：P618.510.7[天文地球—矿床学]