鄂东蕲春县烈马咀钼矿区综合信息找矿预测  

Comprehensive information and prospecting prediction of Liemazui molybdenummining area in Qichun County,eastern Hubei Province

作　　者：张斌 邹仲平 陈炜 宋威方 杜明辉 李冰冰 唐泽慧 Zhang Bin;Zou Zhongping;Chen Wei;Song Weifang;Du Minghui;Li Bingbing;Tang Zehui(The Sixth Geological Brigade of Hubei Geological Bureau,Xiaogan 432000,China;Overseas Geology Center of Hubei Province,Wuhan 430000,China;Nonferrous Geological Brigade of Jiangxi Geological Bureau,Ganzhou 341000,China)

机构地区：[1]湖北省地质局第六地质大队,湖北孝感432000 [2]湖北省地质局海外地质事业中心,湖北武汉430000 [3]江西省地质局有色地质大队,江西赣州341000

出　　处：《资源环境与工程》2025年第2期155-170,共16页Resources Environment & Engineering

基　　金：中央地质勘查基金项目(2011420001);湖北省自然科学基金项目(2023AFD230,2024AFD401);湖北省地质局地质勘查项目(KCDZ202409);湖北省地质局科技项目(KJ2024-28)。

摘　　要：烈马咀钼矿区位于桐柏—大别成矿带东段南坡,成矿时代及构造背景等与北坡北淮阳构造带产出的大型钼矿高度相近,显示本区有寻找类似矿床的潜力,但前期工作局限于浅表,对控矿地质因素等综合研究不足。为解决制约找矿突破的关键问题,基于前期获取的地质、物化探及矿产等综合信息,运用成矿地质体找矿预测理论,构建了本区“三位一体”找矿预测模型:成矿地质体推测为黄梅复式岩体晚阶段(约122~118 Ma)侵位的隐伏斑状二长花岗岩或碱长花岗斑岩;成矿构造为近SN向次生断裂—节理密集带和岩浆侵位原生构造系统;成矿结构面为近SN向的次生节理面,侵入体放射状、网状原生节理裂隙结构面及早阶段侵位围岩间的侵入接触界面。依据找矿预测模型,综合地、物、化及蚀变矿化多因素融合的有利程度,预测了河边湾和梅祠堂2处隐伏斑岩型钼矿成矿中心,圈出找矿靶区2处,可为新一轮深部找矿工作部署提供依据。The Liemazui molybdenum mining area is located on the southern slope of the eastern section of Tongbai-Dabie Metallogenic Belt.The mineralization time and structural background are similar to those of the large-scale molybdenum deposits in North Huaiyang tectonic belt,indicating that this area also has the potential to search for similar deposits in the deep.However,the preliminary work was limited to the shallow surface,and there was insufficient research on the controlling geological factors.To solve the key problems to prospecting breakthrough,based on the comprehensive information obtained from mineral geology,geophyscal and geochemical exploration in the early stage,the“trinity”prospecting prediction geological model was constructed in this area using the prospecting prediction theory and method of metallogenic geological body.The metallogenic geological body is speculated to be a hidden porphyritic monzonitic granite or monzonitic porphyry that intruded into the late stage(about 122-118 Ma)of the Huangmei complex rock mass.The metallogenic structure is a nearly SN oriented secondary fault joint dense zone,primary structure system of intrusive body.The metallogenic structural plane is a secondary joint plane in the near SN direction.The primary structural planes of tensile joints and hydraulic fractures in the intrusive body,intrusive contact interface between the surrounding rocks in the early stage.Based on the prospecting prediction model and the degree of favorable integration of multiple factors including comprehensive geophysics,geochemistry,and alteration mineralization,two hidden porphyry molybdenum mineralization centers were predicted in Hebianwan and Meicitang,and two exploration target areas were identified.This provides guidance for the deployment of a new round of deep ore exploration work.

关 键 词：成矿地质体 找矿预测模型 深部找矿 烈马咀钼矿 大别成矿带南坡 

分 类 号：P618.65[天文地球—矿床学]