青海省都兰县丘吉东沟金矿水系沉积物地球化学特征及找矿远景

刘铭; 王仔章

doi:10.11872/j.issn.1005-2518.2020.06.084

黄金科学技术 >

2020 , Vol. 28 >Issue 6: 837 - 845

DOI: https://doi.org/10.11872/j.issn.1005-2518.2020.06.084

矿产勘查与资源评价

青海省都兰县丘吉东沟金矿水系沉积物地球化学特征及找矿远景

刘铭 ,
王仔章

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^1.山东省鲁南地质工程勘察院（山东省地勘局第二地质大队），山东济宁 272000
^2.河南中核五院研究设计有限公司，河南郑州 450000

刘铭（1969-），男，山东济宁人，工程师，从事区域地质矿产调查和矿产勘查工作。1290278570@qq.com

收稿日期: 2020-05-02

修回日期: 2020-07-28

网络出版日期: 2021-01-29

基金资助

新理论支撑右江成矿带锡钨金找矿勘查

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Geochemical Characteristics of Stream Sendiments and Exploration Prospective of the Qiujidonggou Gold Deposit in Dulan County，Qinghai Province

Ming LIU ,
Zizhang WANG

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^1.Shandong Lunan Institute of Geo-Engineering Exploration （No. 2 Geological Team，Shandong Geological Prospecting Bureau of Geology & Mineral Resources），Jining 272000，Shandong，China
^2.Henan Fifth Research ＆ Design Corporation of CNNC，Zhengzhou 450000，Henan，China

Received date: 2020-05-02

Revised date: 2020-07-28

Online published: 2021-01-29

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摘要

都兰县丘吉东沟金矿区位于东昆仑成矿省，具有良好的成矿地质背景。由于矿区面积较大，区内成矿的有利部位难以圈定，从而限制了矿山的找矿与开采工作。为了揭露研究区矿体的成矿特征及找矿方向，通过对青海省都兰县丘吉东沟金矿开展1∶25 000水系沉积物地球化学特征研究，探讨矿床成矿特征并圈定成矿靶区。通过开展水系沉积物研究发现：Ag、Pb、As和Sb元素与成矿元素相关性较高，可作为成矿的指示性元素；运用衬度异常圈定法，在研究区圈定了4个综合异常区，其中Ⅰ级异常1处，为AS-4号综合异常；Ⅱ级异常2处，分别为AS-1和AS-3号综合异常；Ⅲ级异常1处，为AS-2号综合异常。研究结果将为区域找矿理论研究和找矿方向提供依据。

关键词： 水系沉积物; 地球化学特征; 衬度异常圈定法; 东昆仑成矿省; 丘吉东沟金矿; 青海省

本文引用格式

刘铭 , 王仔章 . 青海省都兰县丘吉东沟金矿水系沉积物地球化学特征及找矿远景[J]. 黄金科学技术, 2020 , 28(6) : 837 -845 . DOI: 10.11872/j.issn.1005-2518.2020.06.084

Abstract

The Qiujidonggou gold deposit in Dulan County is located in the middle of the east Kunlun metallogenic province，so it is necessary to carry out research on the reverse side of mineral exploration.The area has developed structures，frequent research activities，and a good metallogenic geological background.There are famous Wulonggou gold deposit and Tanjianshan gold deposit around the mine.Due to the good metallogenic background in this area，the area has attracted the attention of scholars at home and abroad.Most of the previous studies have focused on the geological characteristics of the deposits and the metallogenic age，and there are few studies on regional mineral exploration，which has led to no breakthrough in regional prospecting. Because the mining area is large and the coverage is serious，general physical and chemical exploration methods are difficult to meet the exploration needs，which limits the prospecting and mining work of the mine.In order to reveal the metallogenic characteristics of the ore bodies in the study area and the prospecting direction，this paper explores the 1∶25 000 water system sediments in the Qiujidonggou gold deposit，to explore the mineralization characteristics and delineation of the deposit mine target area.Through research，it is found that the four elements Ag，Pb，As and Sb are highly correlated with metallogenic elements and can be used as indicator elements for metallogenic.Using the method of contrast anomaly delineation，four comprehensive anomalies were delineated in the study area.One type I anomaly is the AS-4 comprehensive anomaly and the second type anomaly is the AS-1 and AS-3 anomalies，third type anomaly is the AS-2 anomalies.This will provide a theoretical basis for the theoretical research and prospecting direction of regional prospecting.

Key words： stream sediment survey; geochemical characteristics; contrast anomaly delineation method; east Kunlun metallogenic province; Qiujidonggou gold deposit; Qinghai Province

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