云南墨江金厂外围观音山矿区土壤地球化学特征及其在寻找金、镍矿中的应用  

Geochemical characteristics of soil in Guanyinshan mining area in the peripheral of Jinchang,Mojiang,Yunnan Province and its application in prospecting for Au and Ni deposits

作　　者：杨润柏 张七道 吴亮 陈庆松 Yang Runbai;Zhang Qidao;Wu Liang;Chen Qingsong(Kunming Natural Resources Comprehensive Survey Center,China Geological Survey;China University of Geosciences(Wuhan))

机构地区：[1]中国地质调查局昆明自然资源综合调查中心 [2]中国地质大学(武汉)

出　　处：《黄金》2022年第1期13-19,共7页Gold

基　　金：武警黄金部队黄金专项业务费项目(2015-57)。

摘　　要：在墨江金厂外围观音山矿区开展1∶10000土壤地球化学测量工作,以确定有利成矿元素,缩小找矿靶区。对土壤地球化学测量样品分析结果进行数理统计,运用成矿元素地球化学特征进行多元统计分析、单元素及组合异常分析,圈定成矿靶区,并通过路线地质调查及地表工程加以验证。结果表明:观音山矿区Au及Ni元素为有利成矿元素,Au-Ag-As-Sb和Ni-Co-Mn-Cu组合异常可作为寻找金、镍的找矿标志;分别圈定了1处金成矿靶区和1处镍成矿靶区。通过工程验证,发现了6条金矿化带(脉)和5条镍矿化带。本次研究可为观音山矿区下一步找矿勘查评价及寻找金、镍矿提供科学依据。1∶10000 soil geochemical survey was carried out in Guanyinshan mining area in the peripheral of Jinchang,Mojiang,to narrow the prospecting target area and obtain favorable ore-forming elements.The results of soil geochemical survey samples are analyzed by mathematical statistics.The geochemical characteristics of ore-forming elements are used for multivariate statistical analysis,single element and combination anomaly analysis.The ore-forming target area is delineated and verified by route geological survey and surface engineering.The results show that Au and Ni are favorable ore-forming elements in Guanyinshan mining area,and Au-Ag-As-Sb and Ni-Co-Mn-Cu combination anomalies can be used as prospecting indicators for gold and nickel.1 gold ore-forming target area and 1 nickel ore-forming target area are delineated respectively.Through engineering verification,6 gold mineralization zones(veins)and 5 nickel mineralization zones are found.This study can provide a scientific basis for the next-step exploration and evaluation of Guanyinshan mining area and the search for gold and nickel deposits.

关 键 词：土壤地球化学 成矿靶区 工程验证 观音山矿区 哀牢山成矿带 

分 类 号：TD15[矿业工程—矿山地质测量] P618.51[天文地球—矿床学]