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Porphyry
An igneous rock of any composition that contains conspicuous phenocrysts in a fine-grained groundmass.
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Results 1 - 3 of 3 listed by similarity [
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Porphyry copper assessment of British Columbia and Yukon Territory, Canada
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GIS files representing the mineral resource assessment permissive tracts, deposits and significant prospects.
Giant porphyry-related metal camps of the world
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Database of large-tonnage, generally low-grade, hydrothermal deposits related to igneous intrusions emplaced at high crustal levels. Includes tri-partite classification based on deposit type, metal commodities, and source/host pluton chemistry.
Global mineral resource assessment--porphyry copper assessment of Mexico
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Includes known resources and permissive tracts with estimates of the number of undiscovered resources likely to be present in the permissive tracts.