摘要
老挝川圹省约俄铜锡多金属矿位于东南亚重要铁、铜、金多金属成矿带的老挝川圹—越南长山区域构造带西部。该矿床被较厚的植被和第四系覆盖,研究程度低。通过分析矿区资料,开展12.5万沟系次生晕测量,进行靶区筛查,并对找矿潜力进行评价。结果表明:矽卡岩型铜多金属矿床、构造热液蚀变型锡多金属矿床是该矿区寻找2种不同矿床类型的找矿前景。该区成矿与岩浆岩关系紧密,NE向断裂是本区重要的控矿、容矿构造。该区的浅部找矿应围绕NE向断裂开展,深部可能是围岩与岩体接触蚀变地段,是主要找矿方向。通过开展12.5万沟系次生晕测量,优选出4个找矿靶区及10个找矿远景区,结合异常及工程验证,发现1处中型锡多金属矿床和1处小而富矽卡岩型铜矿体。
The Yue'e copper-tin polymetallic deposit in Xiengkhouang,Laos is located in the western part of the Xiengkhouang-Vietnam Changshan regional tectonic belt of the important iron,copper and gold polymetallic metallogenic belt in Southeast Asia.The deposit is covered by thick vegetation and Quaternary,and its the degree of research is low.By analyzing the data of the mining area,the 125,000 ditch system secondary halo measurement was carried out,the target area was screened,and the prospecting potential was evaluated.The results show that the skarn type copper polymetallic deposit and the tectonic hydrothermal altered tin polymetallic deposit are the prospecting prospects for the two different types of deposits in the mining area.The mineralization is closely related to magmatic rocks,and the NE-trending fault is an important ore-controlling and ore-bearing structure in this area.The shallow prospecting should be carried out around the NE-trending faults.The deep part may be the contact alteration area between the surrounding rock and the rock mass,which is the main prospecting direction.By carrying out 125,000 ditch system secondary halo measurement,4 prospecting target areas and 10 prospecting prospect areas were selected.Combined with anomaly and engineering verification,1 medium-sized tin polymetallic deposit and 1 small and rich skarn copper ore body were found.
作者
刘耀辉
史琪
赵延朋
魏翔宇
黄理善
康铁锁
罗达
LIU Yaohui;SHI Qi;ZHAO Yanpeng;WEI Xiangyu;HUANG Lishan;KANG Tiesuo;LUO Da(China Nonferrous Mineral(Guilin)Geology and Mining Co.Ltd,Guilin 541004,Guangxi,China)
出处
《矿产与地质》
2024年第2期301-310,共10页
Mineral Resources and Geology
基金
中国有色矿业集团有限公司科技计划项目“金属矿山强干扰条件下有效探测及异常识别新技术研究与示范”(2021KJJH08)资助。
关键词
锡铜多金属矿
沟系次生晕
靶区优选
川圹省约俄
老挝
tin-copper polymetallic ore
ditch secondary halo
optimization of target area
Yue'e in Xiengkhouang
Laos
