How to Concentrate Copper

Porphyry copper deposits supply nearly 60% of the world's copper which form as magmas in the upper crust, cool, crystallize, and exsolve metal-bearing hydrothermal fluids that precipitate copper sulfide minerals. The deposits have been studied over a century, revealing a striking constant spati...

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Bibliographic Details
Published inScience (American Association for the Advancement of Science) Vol. 302; no. 5653; pp. 2075 - 2076
Main Author Cline, Jean S.
Format Journal Article
LanguageEnglish
Published Washington American Association for the Advancement of Science 19.12.2003
The American Association for the Advancement of Science
Subjects
Algorithms
Climate
Copper
Copper ores
Ecological competition
Economic concentration
Fluids
Genotypes
Geology
Hydrothermal deposits
Inclusions
Lava
Mineral precipitation
Minicourses
Perspectives
Quantum computers
Quartz
Randomness
Scientific Concepts
Stone
United States
Argentina, Catamarca Prov., Bajo de la Alumbrera
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Summary:Porphyry copper deposits supply nearly 60% of the world's copper which form as magmas in the upper crust, cool, crystallize, and exsolve metal-bearing hydrothermal fluids that precipitate copper sulfide minerals. The deposits have been studied over a century, revealing a striking constant spatial and temporal relationship between copper-bearing hydrothermal veins and igneous rocks that display a porhyritic texture of coarse crystals in a finely crystalline ground mass. However, only a small of upper-crustal magmas produce economic copper concentrations.
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ISSN:0036-8075
1095-9203
DOI:10.1126/science.1093202