西北地质2025，Vol.58Issue(4)：1-22,22.DOI:10.12401/j.nwg.2024132
岩浆铜镍矿床中硫化物的垂向物理运移机制
Vertical Transfer of Sulfide in the Magmatic Ni-Cu Sulfide Deposits
摘要
Abstract
In the dynamic,multistage magmatic systems,the particularly important processes in forming mag-matic Ni-Cu sulfide deposits are the transport and accumulation of dense sulfide liquid that is the main carrier of chalcophile elements.However,the dynamic behaviors of sulfide liquids in magmatic systems,remain largely empirical and poorly constrained.Even now,the well-know,ore-forming models have polarized viewpoints to-ward the direction of sulfide vertical transfer in a dynamic magmatic system.The"Small Intrusion Forming Large Deposits"model highlights upward transfer of sulfide-rich magmas and pulses of pure sulfide liquids,while the downward percolation,injection and gravitational back-flow of sulfide liquids play a major role in the formation of"Conduit-type Deposits".In this paper,we summarize the novel methods for studying sulfide's dy-namic processes,systematically review the vertical migration processes and associated physical mechanisms of sulfide droplets,compound droplets and pure sulfide liquids within multistage magmatic systems,and elaborate on the formation processes of typical ore textures in magmatic Ni-Cu sulfide deposits,including the sulfide glob-ules,fine disseminated,dense disseminated,leopard net-textures,patchy net-textures,massive,and sulfide ma-trix breccia ores.This work is aimed at revealing the vertical migration and physical mechanisms of sulfides,outlining the physical enrichment processes of ore-forming materials,and ultimately achieving efficient delin-eation of favorable areas for mineralization and scientifically guiding the prospecting in depth and outside of orebodies in the future.关键词
铜镍硫化物矿床/关键金属的超常富集/硫化物的垂向迁移/典型矿石结构/成矿动力学过程Key words
magmatic sulfide deposits/extreme enrichment of critical metals/vertical transfer of sulfides/typical ore texture/ore-forming dynamics分类
天文与地球科学引用本文复制引用
姚卓森..岩浆铜镍矿床中硫化物的垂向物理运移机制[J].西北地质,2025,58(4):1-22,22.基金项目
国家自然科学基金面上项目"岩浆铜镍矿床中硫化物的垂向物理运移机制——以喀拉通克矿床为例"(42272084),国家重点研发计划课题"大陆裂解过程中圈层相互作用与成矿物质循环"(2021YFF0804204)联合资助. （42272084）
