摘要
金川铜镍矿床是中国乃至全球的重要矿产资源,其发现改变了中国“贫镍国”的局面,随着资源需求增加,金川矿床深边部勘探已成为重点.本文针对成矿有利区(含矿母岩超基性岩体)特征,通过对金川矿区的地质概况、岩石物性资料以及磁力异常资料的详细分析,利用三维地质-地球物理建模技术整合了多种信息源,并考虑采空区的影响,构建了超基性岩体初始模型.后续采用正演异常模拟与三维约束反演联合解析方法,成功预测了深边部成矿有利区的三维空间展布.本研究为金川铜镍矿床深边部的找矿预测提供了重要参考,对指导矿产勘探和开发具有战略意义.
The Jinchuan Cu-Ni deposit is a significant mineral resource for China and even globally.Its discovery fundamentally transformed the nation from a“nickel-poor country”.With resource demands increasing,exploration targeting the deep and peripheral zones of the Jinchuan deposit has become a priority.This study focuses on identifying metallogenic-prospective zones,specifically the ore-bearing ultrabasic rock bodies.Through a detailed analysis of the mining area′s geological setting,rock physical properties,and magnetic anomaly data,multi-source information was integrated using 3D geological-geophysical modeling techniques.By accounting for the influence of mined-out areas,an initial model of the ultrabasic rock bodies was constructed.Subsequently,a joint analytical approach utilizing forward anomaly simulation and 3D constrained inversion was employed,successfully predicting the 3D spatial distribution of deep and peripheral metallogenic-prospective zones.This research provides crucial insights for prospecting predictions in the deep and peripheral zones of the Jinchuan deposit,holding strategic significance for guiding future mineral exploration and development.
作者
刘瑾
熊盛青
朱莹洁
王万银
LIU Jin;XIONG ShengQing;ZHU YingJie;WANG WanYin(College of Geology Engineering and Geomatics,Chang′an university,Xi′an 710054,China;China Aero Geophysical Survey and Remote Sensing Center for Natural Resources,Key Laboratory of Airborne Geophysics and Remote Sensing Geology,Ministry of Natural Resources,Beijing 100083,China;Key Laboratory of Submarine Geosciences,Ministry of Natural Resources,Hangzhou 310012,China;Qingdao Institute of Marine Geology,China Geological Survey,Qingdao Shandong 266237,China;Key Laboratory of Marine Geology and Environment,Chinese Academy of Sciences,Qingdao Shandong 266071,China;National Engineering Research Center of Offshore Oil and Gas Exploration,Beijing 100028,China)
出处
《地球物理学报》
北大核心
2026年第2期810-823,共14页
Chinese Journal of Geophysics
基金
国家重点研发计划项目(2017YFC0602200)
自然资源部海底科学重点实验室开放基金(KLSG2403)资助.
关键词
金川铜镍矿
航磁
三维地质-地球物理建模
三维正反演
采空区
Jinchuan Cu-Ni deposit
Aeromagnetic
3D geological-geophysical modeling
3D forward and inversion modeling
Mined-out area
