太行山北段赤瓦屋铜钼矿及外围地-物-化-遥综合信息找矿靶区预测  

Characteristics of the Chiwawu Cu−Mo deposit in the northern section of Taihang Mountains and the prediction of prospecting target area using geological,geophysical,geochemical and remote integrated information

作　　者：栾卓然 马国玺 李谦谦 吕凤军 许立风 安跃辉 袁兆宪 王丰翔 汪海城 LUAN Zhuoran;MA Guoxi;LI Qianqian;LÜFengjun;XU Lifeng;AN Yuehui;YUAN Zhaoxian;WANG Fengxiang;WANG Haicheng(Hebei Key Laboratory of Strategic Critical Mineral Resources,Shijiazhuang 050031,Hebei,China;Hebei Province Collaborative Innovation Center for Strategic Critical Mineral Research,Shijiazhuang 050031,Hebei,China;College of Earth Sciences,Hebei GEO University,Shijiazhuang 050031,Hebei,China;Hebei Key Laboratory of Study on Porphyry Deposit,Baoding 071000,Hebei,China;Hebei Geological Engineering Survey Institute,Baoding 071000,Hebei,China;Hebei Remote Sensing Center,Shijiazhuang 050031,Hebei,China;Hebei Institute of Hydrological and Engineering Geology,Shijiazhuang 050031,Hebei,China;Earth and Sustainability Science Research Centre School of Biological,NSW 2052,Sydney,Australia;Earth and Environmental Sciences,NSW 2052,Sydney,Australia;University of New South Wales,NSW 2052,Sydney,Australia;Command Center of Natural Resource Comprehensive Survey,China Geological Survey,Beijing 100055,China)

机构地区：[1]河北省战略性关键矿产资源重点实验室,河北石家庄050031 [2]河北省战略性关键矿产研究协同创新中心,河北石家庄050031 [3]河北地质大学地球科学学院,河北石家庄050031 [4]河北省斑岩型矿床研究重点实验室,河北保定071000 [5]河北省地质工程勘查院,河北保定071000 [6]河北省遥感中心,河北石家庄050021 [7]河北省水文工程地质勘查院,河北石家庄050021 [8]Earth and Sustainability Science Research Centre School of Biological,Australia Sydney NSW 2052 [9]Earth and Environmental Sciences,Australia Sydney NSW 2052 [10]University of New South Wales,Australia Sydney NSW 2052 [11]中国地质调查局自然资源综合调查指挥中心,北京100055

出　　处：《中国地质》2024年第4期1139-1160,共22页Geology in China

基　　金：国家自然科学基金(42372343);河北省地勘基金项目(13000023P0069B410132L);河北省自然资源厅科研项目(Z2024044)联合资助。

摘　　要：【研究目的】赤瓦屋铜钼矿位于太行山北段成矿带,属于找矿突破战略的重点勘查区域,目前找矿工作进入瓶颈期,本研究对下一步找矿突破具有重要指导意义。【研究方法】本文基于对赋矿岩体、矿床地质特征、地球物理、地球化学和遥感地质的综合研究,分析找矿标志。【研究结果】认为赤瓦屋铜钼矿与深部花岗斑岩有关,具有斑岩型矿床的典型矿化特征,形成于早白垩世;研究区环形构造发育,大型环形构造与赤瓦屋岩体及外围隐伏岩体有关,小微型环形构造多数与隐蔽爆破角砾岩或隐伏小岩株有关;地球化学异常及遥感蚀变异常的空间分布吻合程度高,对矿化具有显著的控制作用;提出了4个找矿靶区。【结论】在赤瓦屋岩体内部应把确定隐爆角砾岩体和隐伏花岗斑岩体的空间位置作为找矿工作的重点,以寻找Cu、Mo矿为主;外围应以Cu、Au、Ag多金属矿为主。This paper is the result of mineral exploration engineering.Objective The Chiwawu copper–molybdenum deposit is located in the northern Taihang Mountains metallogenic belt,which is one of the key exploration zones as part of the‘Prospecting Breakthrough Strategy’implementation.However,the mineral exploration in this deposit has entered a bottleneck stage currently.This study aims to provide new target areas for the deposit.Methods Identify exploration indicators based on a comprehensive interpretation of the geological,geophysical,geochemical,and remote sensing data of the deposit.Results The deposit was formed in the Early Cretaceous and exhibits similar mineralization characteristics to typical porphyry deposits,indicating a close association with deep−seated granite porphyry.Circular structures are widely distributed in the study area,with large circular structures associated with the Chiwawu coplex and other concealed intrusions,while small to macro−sized circular structures are associated with cryptoexplosive breccias or concealed small stocks.There is a strong spatial correlation between the geochemical anomalies and alteration zones discriminated using the remote sensing data,which can serve as an effective indicator for mineralization.Four exploration target areas are delineated.Conclusions Within the Chiwawu complex,locating the cryptoexplosive breccias and concealed granite porphyry is crucial for Cu and Mo prospecting,while in the surrounding area prospecting,the focus is recommended to be on Cu,Au,and Ag.

关 键 词：铜钼矿 综合找矿信息 靶区预测 太行山北段 赤瓦屋 河北省 矿产勘查工程 

分 类 号：P618.41[天文地球—矿床学] P618.65[天文地球—地质学]