地质找矿论丛2017，Vol.32Issue(4)：535-543,9.DOI:10.6053/j.issn.1001-1412.2017.04.003
哀牢山成矿带南段长安金矿控矿因素及其找矿指示意义
Ore-controlling factors of the Chang'an gold deposit in southern Ailaoshan metallogenic belt and It's prospecting significance
摘要
Abstract
The Chang'an gold deposit of Jinping county,Yunnan province is a large gold deposit discovered recently in the southern Ailaoshan ore belt.The ore-control factors are still controversial.Through analysis of the latest data and field investigation we get new ideas as follows.1)Overturn of the strata in the area is caused by the thrusting fault and the Silurian dolomite is the main ore bearing stratum;2)the cataclastic zone of F6 is the main ore-controlling structure;3)there are three mineralization stages at least in the ore deposit area and the pre-Himalayan period is the main ore-forming epoch;4)the lamprophyre and syenitic porphyry destroyed the ore body but enrich gold thus is the secondary ore-forming stage.Combined with analysis of data of geophysical survey we infer that it is potential to encounter blind ore bodies beneath 500m from the ground surface.关键词
哀牢山成矿带/长安金矿/控矿因素/成矿作用/找矿意义/云南省Key words
Ailaoshan metallogenic belt/Chang'an gold deposit/ore-controlling factors/mineralization/prospecting significance/Yunnan province分类
天文与地球科学引用本文复制引用
李华,范文玉,张建龙,张星培,艾斯卡尔,周一敏..哀牢山成矿带南段长安金矿控矿因素及其找矿指示意义[J].地质找矿论丛,2017,32(4):535-543,9.基金项目
中国地质调查局地质矿产调查专项项目(编号:12120113094800、1212011120608)资助. （编号:12120113094800、1212011120608）
