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.
出处
《地质与勘探》
CAS
CSCD
北大核心
1990年第5期3-11,共9页
Geology and Exploration
