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Porphyry-Type Deposits of the Appalachian Orogen
Economic Geology, 1974Absolute age, change in metallogeny, alteration, zoning; Paleozoic, New England, Maritime ...
V. F. Hollister +2 more
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How to make porphyry copper deposits
Earth and Planetary Science Letters, 2020Abstract Much of the world's economic copper resources are hosted in porphyry copper deposits (PCDs), shallow level magmatic intrusions associated mostly with thick ( > 45 km ) magmatic arcs, such as mature island arcs and continental arcs. However, a well-known, but unresolved paradox, is that arc magmas traversing thick crust, particularly ...
Cin-Ty A. Lee, Ming Tang
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THE MAGMATIC SOURCES OF THE ORE MATERIAL OF PORPHYRY MOLYBDENUM AND PORPHYRY COPPER DEPOSITS
International Geology Review, 1988(1988). THE MAGMATIC SOURCES OF THE ORE MATERIAL OF PORPHYRY MOLYBDENUM AND PORPHYRY COPPER DEPOSITS. International Geology Review: Vol. 30, No. 7, pp. 772-781.
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Philippine Porphyry and Epithermal Deposits: An Introduction
Economic Geology, 2011The Philippines is one of the most richly endowed parts of the Southwest Pacific, with many porphyry copper-gold and epithermal gold-silver deposits scattered along the archipelago (e.g., Sillitoe and Gappe, 1984; Mitchell and Leach, 1991; Fig. 1). Chinese mining artifacts discovered in the Baguio and Masbate districts suggest that gold and silver ...
Cooke, David R +2 more
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Hydrothermal alteration in the "porphyry copper" deposits
Economic Geology, 1947The hydrothermal alteration, which was accompanied by the introduction of copper sulphides in the disseminated copper deposits, is considerably more complex than is generally recognized.Detailed microscopic study of selected porphyry specimens from the important deposits in the United States, together with a review of published data, leads to the ...
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The Sar Cheshmeh porphyry copper deposit
Economic Geology, 1975The Sar Cheshmeh porphyry copper, located in southern Iran, was mined in ancient times, "rediscovered" about 1966, explored during 1966-1969, and will be in full production in 1977 at a rate of 40,000 tons of ore per day. Mineralization is associated with a late Tertiary granodiorite porphyry stock, cut by a series of genetically related intramineral ...
G. C. Waterman, R. L. Hamilton
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The tops and bottoms of porphyry copper deposits
Economic Geology, 1973Although it is now widely accepted that porphyry copper deposits consist of zonally arranged shells of alteration and mineralization centered on high-level, calc-alkaline stocks, the nature of their uneconomic upward and downward extensions remains undocumented.
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SEG Discovery, 2013
With the publication of this collection of papers on porphyry deposits, SEG offers a signifıcant addition to its popular Compilation series. Introduced in 2007, the series brings together papers on a single theme, collected from the entire archive of Economic Geology and other SEG publications, in a searchable, digital format—on CD-ROM or, as is the ...
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With the publication of this collection of papers on porphyry deposits, SEG offers a signifıcant addition to its popular Compilation series. Introduced in 2007, the series brings together papers on a single theme, collected from the entire archive of Economic Geology and other SEG publications, in a searchable, digital format—on CD-ROM or, as is the ...
openaire +1 more source