| 胡俊,姚尧,齐文博,周洪兵,赵云川,何志威.多元素衬值累加法在东昆仑克贡玛地区找矿的应用[J].矿产勘查,2023,14(4):616-624 |
| 多元素衬值累加法在东昆仑克贡玛地区找矿的应用 |
| Application of multi-element contrast values accumulation method for prospecting in Kegongma area，Eastern Kunlun |
| 投稿时间：2022-02-19 修订日期：2022-05-26 |
| DOI：10.20008/j.kckc.202304009 |
| 中文关键词: 多元素衬值累加 水系沉积物 克贡玛 东昆仑 |
| 英文关键词: multi-element constast values accumulation stream sediment Kegongma Eastern Kunlun |
| 基金项目:本文受青海省地勘基金项目（青地调勘［2021］018号）资助 |
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| 中文摘要: |
| 克贡玛地区位于东昆仑哈日扎—那更银矿带中部延伸地段，成矿地质条件较为优越。为实现该区快速找矿突破，在初步总结成矿地质背景基础上，本文详细研究了该区水系沉积物测量数据结构特性。采用相关性分析、R型聚类分析2种手段进行数据分析处理，并利用多元素衬值累加方法编制了地球化学异常图，实现了多元素异常“一张图”。通过典型矿点对比，有效识别了研究区高背景区域和低背景区域异常变化趋势，优选找矿靶区13处。经过查证，证实9处为矿致异常，找矿成功率达69.2％，实现了该区快速有效找矿突破。 |
| 英文摘要: |
| The Kegongma area is located in the central extension of the Hariza-Nageng silver ore belt， Eastern Kunlun Mountains， with favorable metallogenic geological conditions. We did an exhaustive research about structural characteristics of stream sediment data on the basis of preliminary summary of metallogenic geological backgroundto， to achieve a rapid prospecting breakthrough. We choosed correlation analysis and R-type clustering for data analysis and handing， and choosed multi-element contrast value accumulation method for geochemical anomaly map， to realized “one picture” for multi-element anomaly. Through the comparison of typical mineralization points， we recognized the anomalous trends on high background and low background in the study area effectively， 13 prospecting target areas are selected. After verification， nine geochemical anomalies were related to mineralization ， and the successful prospecting rate is 69.2%， we achieved a rapid and effective prospecting breakthrough in the area. |
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