中国地质调查2025，Vol.12Issue(6)：32-40,9.DOI:10.19388/j.zgdzdc.2025.101
豫西南地区铜矿成因类型及成矿规律
Genetic types and ore-forming laws of copper deposits in southwestern Henan Province
摘要
Abstract
The southwestern Henan Province is an important polymetallic mineralization area.To further achieve breakthrough in copper ore exploration in this region,the authors conducted the study based on the typical copper deposits data in the southwestern Henan Province,and the exploration work at typical deposits and mineral occur-rences.The mineral sources and ore-forming fluids were compared in this research to explore the different gene-sis types of the copper deposits in this area and summarize the mineralization laws of the copper deposits in the southwestern Henan Province.The research indicated that copper deposits in the southwestern Henan Province contained three different genetic types.The first one is blocky sulfide type,whose ore bodies are mainly produced in the diabase quartz porphyry series of Erlangping Group,and are controlled by the NWW-trending compressive-torsional fault,ductile shear metamorphic zone and secondary fault zones.The second one is por-phyry-skarn type,whose ore bodies are mainly produced in Qinling Group Yanlinggou Formation marble,plagio-clase amphibolite gneiss,granite gneiss.The secondary fault zone is a favorable location for ore control and stor-age,while Yanshanian granite and granite porphyry veins and their surrounding areas are favorable locations for mineralization.The third one is medium low temperature hydrothermal filling type,whose ore bodies are all con-trolled by structures,and its occurrence is consistent with the tectonic fracture zone.The mineralization time of copper deposits in the southwestern Henan Province is concentrated in Caledonian period and Yanshanian period,with Yanshanina period being the main one.Finally,based on the structure and the ore-controlling patterns of the rock mass,four favorable areas for mineralization were identified.This research could provide references for copper prospecting in the southwestern Henan Province.关键词
铜矿/成因类型/块状硫化物/斑岩-矽卡岩/豫西南地区Key words
copper deposit/genetic type/massive sulfide/porphyry-skarn/the southwestern Henan Province分类
天文与地球科学引用本文复制引用
英亚歌,胡伟,任丰艳,杨贺杰..豫西南地区铜矿成因类型及成矿规律[J].中国地质调查,2025,12(6):32-40,9.基金项目
河南省豫地科技集团有限公司2023年度科技项目"豫西南地区铜多金属矿成矿规律及深部找矿预测(编号:JTZCKY2023020)"、河南省矿产资源国情调查项目(编号:豫自然资办函[2020]22号)及中国地质调查局"豫西成矿带地质矿产调查(编号:12120113061500)"联合资助. （编号:JTZCKY2023020）
