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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
Geochemical Characteristics of Stream Sendiments and Exploration Prospective of the Qiujidonggou Gold Deposit in Dulan County,Qinghai Province
Received date: 2020-05-02
Revised date: 2020-07-28
Online published: 2021-01-29
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。
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
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.
中国地质调查局地质力学研究所承担的“右江成矿带锡金多金属矿集区矿田构造调查与找矿预测”项目,以新的构造控矿模型指导,在南盘江—右江成矿带锡钨、金矿找矿中取得突破性进展,支撑引领了该成矿带新区、新层位和新类型找矿勘查工作。
2020年11月初,地质力学研究所会同广西地矿局、贵州地矿局、紫金矿业、中金集团等单位的专家学者,对项目阶段性成果进行了检查验收。与会专家高度评价了项目取得的各项成果,一致认为项目提出的构造控矿模式在南盘江—右江成矿带具有普适性,有力支撑服务了找矿突破战略行动和地方资源大精查工作,能够为中央资金与地方资金合作的新模式起到良好的示范作用。专家组建议,进一步凝练完善成矿模式和找矿模型,加强地球物理、地球化学的地质综合解释,力求在南盘江—右江成矿带下一步找矿工作中得到推广应用,争取取得更大的找矿突破。
自2016年以来,地质力学所矿田构造团队在区内开展了长期、系统的锡铅锌多金属矿田构造调查与找矿预测工作。通过控矿构造精细解析及对比研究,突破原有成矿和控矿认识,提出了与燕山晚期岩浆作用有关的矿床构造控矿模型,建立了区域内“深部供给、垂向运移、侧向充填交代”的构造控矿模式。
首次在桂西百色平那地区三叠系碎屑岩地层中,钻探验证圈定云英岩型钨—锡矿体,实现了右江成矿带新区域、新层位和新类型锡钨找矿勘查突破,为下一步锡钨矿种找矿勘查提供了新理论和实例支撑。同时在黔西南地区圈定了一批找矿远景区,直接推动贵州省贞丰县者相二地区列入“重点矿产资源大精查”范围,带动地方投入资金5 000余万元开展找矿勘探工作,实现了金矿找矿勘查的重大突破,为黔西南地区建成国家金矿大型资源基地奠定了坚实的基础。
(来源:中国地质调查局地质力学研究所)
http://www.goldsci.ac.cn/article/2020/1005-2518/1005-2518-2020-28-6-837.shtml
1 |
丁吉顺,陈伟,周恒,等.西藏雄梅地区1∶5万水系沉积物地球化学特征及找矿远景[J].地质与勘探,2019,55(1):48-63.
|
2 |
姚振,强晓农,王佳,等.青海罗汉堂地区水系沉积物地球化学特征及成矿预测[J].矿产勘查,2018,9(12):2410-2415.
|
3 |
张庆华.青海立新地区水系沉积物地球化学特征及找矿预测[J].矿产与地质,2018,32(6):1091-1097.
|
4 |
|
5 |
|
6 |
张新铭,魏俊浩,石文杰,等.青海多彩当江地区水系沉积物元素地球化学结构特征及找矿方向[J].地质找矿论丛,2019,34(2):302-314.
|
7 |
孙社良,冯增会,黄孝波,等.新疆汉水泉地区水系沉积物测量地球化学特征及找矿方向[J].物探与化探,2018,42(6):1116-1124.
|
8 |
刘建楠,丰成友,肖克炎,等.东昆仑成矿带成矿特征与资源潜力分析[J].地质学报,2016,90(7):1364-1376.
|
9 |
陈柏林,王永,韩玉,等.东昆仑五龙沟矿田岩金沟金矿床成矿时代新认识[J].矿床地质,2019,38(3):541-556.
|
10 |
国显正,栗亚芝,贾群子,等.东昆仑五龙沟金多金属矿集区晚二叠世—三叠纪岩浆岩年代学、地球化学及其构造意义[J].岩石学报,2018,34(8):2359-2379.
|
11 |
韩玉,陈柏林,邓元良,等.青海五龙沟金矿田两期蚀变作用及其找矿意义[J].地质学报,2017,91(3):561-570.
|
12 |
崔艳合,张德全,李大新,等.青海滩间山金矿床地质地球化学及成因机制[J].矿床地质,2000,19(3):211-221.
|
13 |
何旺,罗先熔,高文,等.青海省都兰县五龙沟—高地地区水系沉积物地球化学特征及找矿远景[J].矿物岩石地球化学通报,2019,38(5):1017-1023.
|
14 |
徐东海,万太平,乌日根.黑龙江铁力卫林地区水系沉积物地球化学特征及找矿方向[J].矿产与地质,2019,33(5):879-884.
|
15 |
张学德.青海省都兰县大格勒东金多金属矿床特征及找矿标志[D].长春:吉林大学,2019.
|
16 |
丁清峰,金圣凯,王冠,等.青海省都兰县果洛龙洼金矿成矿流体[J].吉林大学学报(地球科学版),2013,43(2):415-426.
|
17 |
李金超,杨宝荣,贾群子,等.青海省都兰县果洛龙洼金矿床地质特征及找矿标志[J].矿床地质,2012,31(增1):749-750.
|
18 |
张钰.青海都兰县沙柳河地区铅锌多金属矿床地质特征及成矿预测[D].长春:吉林大学,2019.
|
19 |
武亚峰.青海省都兰县那更康切尔沟银矿床地质特征及成因[D].长春:吉林大学,2019.
|
20 |
韩珂,安乐,杨兴科,等.数学地质方法在南秦岭汉阴黄龙金矿中的应用[J].黄金科学技术,2019,27(1):1-14.
|
21 |
李丽,刘振超,郭立霞,等.河南大章—德亭金矿区土壤地球化学特征及异常评价[J].矿产勘查,2019,10(7):1632-1637.
|
22 |
张崇山,韩亚彬.基于数据库的地球化学异常特征参数计算方法[J].物探与化探,2019,43(1):148-152.
|
/
〈 |
|
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