西北地质2025，Vol.58Issue(3)：221-235,15.DOI:10.12401/j.nwg.2025018
东昆仑东段那更康切尔地区银多金属矿床原生晕特征及深部预测
Characteristics of Primary Halos and Deep Prospecting Prediction of the Nagengkangqieer Silver Deposit in Eastern of East Kunlun
摘要
Abstract
Nagengkangqieer area is located in the Gouli Gold Orefield in the eastern segment of the East Kun-lun orogenic belt.It is the first large independent silver deposit discovered in Qinghai province.As exploration for silver minerals delves deeper,analyzing drilling primary halos to predict deep-seated mineralization stands as a current direct and effective method.In this study,We systematically collected 919 samples from 7 drill holes within the Ⅺ mineralized belt of the Nagengkangqieer silver deposit,and analyzed 15 elements including Au,Ag,Cu,Pb,Zn,W,Sn,Mo,As,Sb,Hg,F,Mn,Bi,Co.Cluster analysis was utilized to examine element combi-nation features while the Grigoriev method was employed to study primary halo zoning characteristics.The re-sults revealed an axial zoning sequence of the primary halo from surface to a depth is:Au→Hg→Ag→Mo→Mn→Sn→Sb→As→Pb→Zn→W→Bi→Cu→F→Co.We summarized zoning patterns of abnormal elements within the deposit and identified Ag,Pb,Zn,Au,Sb,Sn,and Cu as near-mine halo elements;Hg,As,and(F)as frontier-halo elements;Mo,Co,Mn,(Bi),and(W)as tail-halo elements.There are characteristics of near-mine halo,frontier-halo and tail-halo elements overlapping,as well as no signs of extermination in the deep part of the anomaly,indicating that the mineral body has further extension along the axis in the deep part.Combined with geophysical and geochemical characteristics,and compared with regional mineral deposits,it is believed that the mineralized body in the northern extension of the Ⅺ mineral belt extends further into the depths,and there is great potential for deep-seated mineral exploration.关键词
那更康切尔银矿/原生晕/元素组合特征/轴向分带序列/深部预测Key words
Nagengkangqieer silver deposit/primary halo/element combination characteristics/axial zona-tion sequence/prediction for mineral exploration in depth分类
天文与地球科学引用本文复制引用
于小亮,王成勇,李杰,马财,董基恩,李华,李向军,康波,魏小林..东昆仑东段那更康切尔地区银多金属矿床原生晕特征及深部预测[J].西北地质,2025,58(3):221-235,15.基金项目
青海省地质勘查基金项目"青海省柴周缘主要矿集区矿产资源深部勘查方法技术示范研究"(2021074008ky008)、"青海省重要矿集区深部找矿突破示范"(2023085029ky004)和"昆仑-阿尔金金锰铁区域成矿规律与智能找矿预测"(2024ZD1001800)联合资助. （2021074008ky008）
