THE ROLE OF MAGMAS IN THE FORMATION OF HYDROTHERMAL ORE-DEPOSITS

被引:1509
作者
HEDENQUIST, JW [1 ]
LOWENSTERN, JB [1 ]
机构
[1] US GEOL SURVEY,MENLO PK,CA 94025
关键词
D O I
10.1038/370519a0
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Magmatic fluids, both vapour and hypersaline liquid, are a primary source of many components in hydrothermal ore deposits formed in volcanic arcs. These components, including metals and their ligands, become concentrated in magmas in various ways from various sources, including subducted oceanic crust. Leaching of rocks also contributes components to the hydrothermal fluid-a process enhanced where acid magmatic vapours are absorbed by deeply circulating meteoric waters. Advances in understanding the hydrothermal systems that formed these ore deposits have come from the study of their active equivalents, represented at the surface by hot springs and volcanic fumaroles.
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页码:519 / 527
页数:9
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