河北地质大学学报2025，Vol.48Issue(5)：1-11,11.DOI:10.13937/j.cnki.hbdzdxxb.2025.05.001
地球之核-幔-壳热柱上涌与幔枝构造成矿控矿作用
Metallogenic and Ore-Controlling Processes of Thermal Plume Uprising(Core-Mantle-Crust Interaction)and Mantle Branch Structures:A Case Study of the Guojiadian Mantle Branch Structure's Role in Ore Controlling
摘要
Abstract
A significant breakthrough has been achieved in the deep exploration of gold deposits in the northwest Jiaodong region.Among the various ore-controlling factors for gold mineralization,the Mesozoic tectonic movements,magmatic activities,and metallogenic processes have played a crucial role in the large-scale formation of gold,silver,and polymetallic deposits in the region,with intense faulting activities being the dominant factor.This paper focuses on the ore-controlling role of regional deep-seated major faults and explores the controlling effects of fault activities on large-scale mineralization.The study suggests that the extraction of ore-forming materials is limited,as the migration from low-grade ore source beds to high-grade ore veins is poorly understood,especially under high pressures at depth,where migration often occurs from deep high-grade ore source beds to shallow low-grade fault zones.Alternatively,the migration and accumulation of ore-forming materials from mantle plumes,mantle sub-plumes,and mantle branch structures may be the primary controlling factors.Through the multi-stage evolution of mantle plumes,the migration carriers of ore-forming materials,in the form of gaseous,gas-liquid,and liquid states,migrate upward from the deep to the dilation zones of mantle branch structures where moderate temperature and pressure conditions are favorable for mineralization.The Jiaojia Fault and Sanshandao Fault,located on the northwestern margin of the Guojiadian mantle branch structure,not only serve as the main migration pathways for ore-forming fluids but also constitute extremely important favorable spaces for mineralization and ore storage,resulting in the formation of world-class super-large gold deposits.关键词
幔枝构造/成矿作用/控矿断裂/成矿规律/找矿方向/胶东地区Key words
mantle branch structure/ore-forming process/ore-controlling faults/metallogenic regularity/prospecting directions/Jiaodong area分类
天文与地球科学引用本文复制引用
牛树银,陈超,宋明春,张福祥,马宝军,胡华斌..地球之核-幔-壳热柱上涌与幔枝构造成矿控矿作用[J].河北地质大学学报,2025,48(5):1-11,11.基金项目
国土资源部金矿成矿过程与资源利用重点实验室项目(2013001) （2013001）
公益性行业科研专项经费项目(200911007) （200911007）
河北科技厅重点研发项目(22374201D) （22374201D）
