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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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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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2000
Abstract Gold-rich porphyry deposits worldwide conform well to a generalized descriptive model. This model incorporates six main facies of hydrothermal alteration and mineralization, which are zoned upward and outward with respect to composite porphyry stocks of cylindrical form atop much larger parent plutons.
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Abstract Gold-rich porphyry deposits worldwide conform well to a generalized descriptive model. This model incorporates six main facies of hydrothermal alteration and mineralization, which are zoned upward and outward with respect to composite porphyry stocks of cylindrical form atop much larger parent plutons.
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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 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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Preface: Porphyry deposits in the Eurasian continent
Journal of Asian Earth Sciences, 2014Compared to the porphyry deposit systems in North and South America, and the Southwest Pacific Islands, the porphyry deposits in the Eurasian continent are much less known. The porphyry systems in the Eurasian continent are distributed throughout a large span of geological history, from the Mesoproterozoic to the Cenozoic. In the Phanerozoic, there are
Jingwen Mao +3 more
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Marcopper porphyry copper deposit, Philippines
Economic Geology, 1976Marcopper porphyry copper deposit is located in the Philippines near the center of the island of Marinduque, 180 km south of Manila. The island9s tectonic history is dominated by northwesterly trending elements of the Philippine mobile belt. Mineralization is related to differentiated intermediate intrusives which occupy the core of a northwesterly ...
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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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