摘要
云南省宾川小龙潭铜钼矿床是金沙江—红河喜马拉雅期富碱斑岩带上一个较为知名的矿床。随着云南省“三年找矿行动计划”项目的实施,对宾川小龙潭铜钼矿区成矿斑岩体的形态、产状及矿体的赋存空间特征等方面的认识取得了重要进展。依托于云南省有色地质局“云南省永胜分水岭—大理笔架山铜多金属矿床成矿时代及构造背景专题研究”项目,以构造和喜马拉雅期富碱斑岩为重点,从成矿地质体、成矿构造系统与成矿结构面,以及成矿作用特征标志“三位一体”探索构建矿区成矿模式,进一步打开找矿思路与空间。提出以核桃箐矿段钾化带为中心、扩大北部、解剖东部、探索南部的勘查思路,在8号岩体以东的石英-黄铁-绢云母化带内,是寻找富厚细脉浸型工业铜矿体的有利部位,呈NE向干海子断层带为寻找铜金矿化带的重点靶区。
Xiaolongtan copper-molybdenum deposit in Binchuan County,Yunnan Province is a well-known deposit in the Jinshajiang-Honghe Himalayan alkali-rich porphyry belt.With the implementation of the"Three-Year Prospecting Action Plan"project in Yunnan Province,the important progress has been made in the understanding of the morphology and occurrence of the ore-forming porphyry body and the spatial characteristics of the ore body in Xiaolongtan Cu-Mo deposit.Relying on the project of“Study on metallogenic epoch and tectonic setting of copper polymetallic deposits in Yongsheng watershed-Dali Bijiashan,Yunnan Province”of Yunnan Nonferrous Geological Bureau,focusing on the structure and Himalayan alkali-rich porphyry,for the“trinity”of ore-forming geological body,the metallogenic structural system and metallogenic structural plane,as well as the characteristics of metallogenesis,it is explored for the construction of mineralization model in the mining area,which further opens up the prospecting idea and space.It is proposed for the exploration idea to take the potash zone in Hetaoqing ore section as the center,to expand in the north part,to analyze the east part,and to explore in the south part.The quartz-pyrite-sericitization zone in the east of the No.8 rock body is the favorable position to explore for the rich and thick vein disseminated industrial copper ore body.The NE-trending Qianhaizi fault zone is the key target area for the exploration of copper-gold metallogenic belt.
作者
张金学
唐永昆
ZHANG Jinxue;TANG Yongkun(The Geological Team No.310,Yunnan Provincial Bureau of Non-ferrous Geology,Dali 671000,Yunnan,China)
出处
《矿产与地质》
2021年第2期194-201,242,共9页
Mineral Resources and Geology
基金
云南省地勘基金项目“云南省宾川县小龙潭斑岩铜矿普查”(编号:201100024)
云南省有色地质局综合作研究项目“云南省永胜分水岭—大理笔架山铜多金属矿床成矿时代及构造背景专题研究”共同资助。
关键词
小龙铜钼矿床
成矿模式
富碱斑岩
云南宾川县
Xiaolong copper-molybdenum deposit
metallogenic model
alkali-rich porphyry
Binchuan County of Yunnan
