乌拉特中旗扎木图乌兰金矿找矿标志意义

1.中国地质调查局海口海洋地质调查中心,海口 571127;2.中国石油华北油田勘探开发研究院,河北 任丘 062552;3.中煤地质集团有限公司,北京 100040;4.浙江省地震局,杭州 310007

扎木图乌兰;金矿;蚀变岩型金矿;乌拉特中旗

Significance of Exploration Indicators for Zhamutu Wulan Gold Deposit in Urad Middle Banner
SUN Nuoya1,ZHANG Xiaofang2,DING Weipin1,GUO Peng3,CHEN Tao4

1.Haikou Marine Geological Survey Center , China Geological Survey , Haikou 571127, China;2.Exploration and Development Research Institute of CNPC Huabei Oilfield Branch , Renqiu 062552, China;3.China Coal Geological Group Co., Ltd., Beijing 100040, China;4.Zhejiang Earthquake Agency , Hangzhou 310007, China

Zhamutu Wulan;Gold deposit;Altered rock-type gold deposit;Urad Middle Banner

DOI: 10.13512/j.hndz.2025.03.06

备注

内蒙古扎木图乌兰金矿位于华北板块北缘的金、银、铜、铅、锌、铂、钼、硼、石墨和滑石成矿带内,近年来陆续发现了常山壕金矿床、赛音乌苏金矿等,是寻找金矿的有利区域。为了深入研究扎木图乌兰金矿的成矿地质特征,通过对区域地质及地球化学特征的分析,采用数字地质调查方法,结合研究区的地质和地球化学数据,并参考区内外已知矿床的成矿特点,提出了破碎带蚀变岩型金矿的主要找矿标志:一是断裂破碎带;二是多金属(如Au、As、Sb等元素)地球化学综合异常区;三是围岩蚀变后形成的硅化和褐铁矿化现象。基于这些找矿标志,此研究在研究区内圈定了三个找矿靶区,其中1个为A级金矿靶区,2个为B级金矿靶区,旨在为未来的找矿工作提供指导,并为区域内类似类型矿床的寻找提供参考。
The Zhamutu Wulan Gold Deposit in Inner Mongolia is located within the metallogenic belt of gold, silver, copper, lead, zinc, platinum, molybdenum, boron, graphite, and talc along the northern margin of the North China Plate. In recent years, gold deposits such as the Changshanhao and Saiyinwusu have been discovered, making it a promising area for gold exploration. To further investigate the metallogenic geological characteristics of the Zhamutu Wulan Gold Deposit, this study analyzed the regional geological and geochemical features, employed digital geological survey methods, and combined geological and geochemical data from the study area. By referencing the metallogenic characteristics of known deposits both within and outside the region,the study proposed the key exploration indicators for altered rock-type gold deposits in fault zones: fault fracture zones,multi-element(such as Au,As,and Sb)geochemical anomaly areas,and silicification and limonitization phenomena formed after alteration of the surrounding rocks. Based on these exploration indicators, three prospective exploration targets were delineated within the study area,including one A-grade gold target and two B-grade gold targets. This study aims to provide guidance for future exploration efforts and offer a reference for the discovery of similar deposit types in the region.
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