云南冶金2025，Vol.54Issue(6)：16-23,8.
云南毛姐山金矿床地质特征与找矿标志
Geological Characteristics and Prospecting Indicators of the Maojieshan Gold Deposit in Yunnan Province
摘要
Abstract
The Maojie Mountain gold deposit is located in the hinterland of the"Golden Triangle"ore-concentrated area in Yunnan-Guizhou-Guangxi regions.It is a newly discovered medium-sized arsenic-gold fine-disseminated type gold deposit through recent prospecting and exploration efforts.The gold ore bodies of the deposit occur within the diabase mass near the core of the short-axis anticline in Maojie Mountain,and three relatively large-scale ore bodies,namely Vi,V2,and V5,have been delineated.The ore-bearing rocks are altered diabase,with pyrite and arsenopyrite being the primary minerals.During the early,middle,and late stages of mineralization in the deposit,mineral assemblages of quartz-pyrite,quartz-sericite-pyrite-arsenopyrite,and calcite-chlorite-stibnite developed respectively.The surface features a pyrite-sericite alteration zone,fractured zones within the diabase mass,and"collapse zones"in the slope-break fall strata(D2p).The"three-alteration"assemblage(sulfidation,silicification,and limonitization)serves as the key prospecting indicators in the mining area.关键词
毛姐山金矿/辉绿岩/黄铁矿/毒砂/找矿标志Key words
Maojie mountain gold deposit/diabase/pyrite/arsenopyrite/prospecting criteria分类
天文与地球科学引用本文复制引用
沈忠义,坚润堂,刘路全,孙玉海..云南毛姐山金矿床地质特征与找矿标志[J].云南冶金,2025,54(6):16-23,8.基金项目
中国有色金属工业昆明勘察设计研究院有限公司科研基金资助(2021YN05A1) （2021YN05A1）
