地质通报2024，Vol.43Issue(7)：1120-1132,13.DOI:10.12097/gbc.2023.05.018
河南银洞坡金矿"三位一体"找矿预测地质模型及应用示范
The"trinity"prospecting prediction geological model and application demonstration of Yindongpo gold deposit in Henan Province
摘要
Abstract
The Yindongpo gold deposit is a super large gold deposit located in Zhuzhuang Town,Tongbai County,Henan Province,associated with silver,lead and zinc.This paper applies the prospecting prediction methods and theories in the exploration area to construct a"trinity"geological model for prospecting prediction,which focuses on the ore-forming geological body,ore-forming structure,ore-forming structural plane,and the characteristic markers of mineralization.Based on field investigation and mineral deposit study,the Yindongpo deposit has been suggested as middle-low temperature(200～350℃)magmatic-hydrothermal deposit,related to magmatic activities at Early Cretaceous.C-H-O-S isotopes indicate that ore-forming materials and fluids mainly originated from magmas.The metallogenic geological body is determined as concealed Early Cretaceous pluton in deep part of the Yindongpo deposit.Metallogenic structural plane is lithologic interface(silicon/calcium interface),structural plane of fold metallogenic tectonic system,structural plane of sedimentary diagenesis.Mineralization indicators are skarn,potassic alteration,beresitization,silicification,iron dolomitization,fluorite,and carbonation.Ore prediction model has been established,defining prospecting area,and 85%drill hole witnessed mineralization,achieving exploration breakthrough.The work has been meaningful in guiding to next ore exploration step.关键词
找矿突破/找矿预测模型/成矿地质体/成矿结构面/成矿作用特征标志/银洞坡金矿/矿产勘查工程Key words
mineral exploration breakthrough/mineral prospecting prediction model/metallogenic geological body/metallogenic structural plane/mineralization characteristics and features/Yindongpo deposit/mineral exploration engineering分类
天文与地球科学引用本文复制引用
唐相伟,张晓飞,杨泽强,郭跃闪,王海生,李积山..河南银洞坡金矿"三位一体"找矿预测地质模型及应用示范[J].地质通报,2024,43(7):1120-1132,13.基金项目
国家重点研发计划项目《脉状金系统的综合找矿技术与增储示范》(编号:2022YFC2903605)、中国地质调查局项目《矿集区矿产调查及深部找矿预测》(编号:DD20190570-2020-02),河南省财政地质勘查项目《河南省桐柏县围山城金银矿深部及外围普查》 （编号:2022YFC2903605）
