云南冶金2025，Vol.54Issue(3)：14-18,39,6.
滇西北余家村金银多金属矿构造-蚀变特征及控矿作用
Structural-Alteration Characteristics and Ore-Controlling Effects of a Polymetallic Au-Ag Deposit in Yujia Village of Northwest Yunnan
白曜宇 1张忠明 2李小慧 3何丽萍 1宋德普 1苗志能1
作者信息
- 1. 云南富盛锌鑫投资股份有限公司,云南 昆明 650021
- 2. 云南省有色地质局三○八队,云南 个旧 661000
- 3. 河南省地质局生态环境地质服务中心,河南 郑州 450053
- 折叠
摘要
Abstract
Construction,alteration delineation,and ore-controlling regularity research were conducted based on field investigations to determine the geological characteristics of the gold-silver polymetallic deposit in Yujia Village.The alteration consists primarily of ferromanganese carbonatization and silicification,and it is linked to gold-silver polymetallic mineralization;the alteration associated with porphyry copper mineralization is mainly sericitization-pyritization and potassic alteration.The structural alteration belts are divided into two dominant systems:NE-striking transpressional zones,and NNW-striking transtensional zones,the ore-controlling structures demonstrate distinct zonal distribution with sub-parallel,quasi-equidistant spacing;the structural belt exhibits differential mineralization of Au,Ag,Pb,and Zn,constituting a critical ore-controlling structure in the deposit.Investigations into the characteristics of structural alteration zones and their ore-controlling mechanisms will facilitate a systematic understanding of metallogenic regularity and provide critical guidance for ore prospecting.关键词
余家村金银多金属矿/构造蚀变带特征/控矿作用/滇西北Key words
Yujia village gold-silver multi-polymetallic ore/zonation characteristics of structural alteration/mineralization controls/northwest Yunnan分类
矿业与冶金引用本文复制引用
白曜宇,张忠明,李小慧,何丽萍,宋德普,苗志能..滇西北余家村金银多金属矿构造-蚀变特征及控矿作用[J].云南冶金,2025,54(3):14-18,39,6.
