Results 101 to 110 of about 4,358 (226)
Frontiers in Earth SciencePorphyry-type Cu ± Au ± Mo deposits form in the upper (ca. 2–5 km deep) parts of large, long-lived magmatic-hydrothermal systems in which mineralising fluids are thought to be derived from mid-to shallow-crustal magma chambers.
Lawrence C. Carter +2 more
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DISTRIBUTION OF HALOGENS AND SULFUR IN APATITES FROM PORPHYRY COPPER DEPOSITS OF THE SOUTH URALS: NEW DATA [PDF]
Минералогия, 2016 New data on distribution of halogens and sulfur in apatites from diorite intrusives of the Voznesenskoe and Elenovskoe porphyry copper deposits, as well as Kutuevskoe ore occurrence, are presented.
V.V. Kholodnov +4 more
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The collision-type porphyry Mo deposits in Dabie Shan, China
, 2017 The Dabie Shan in central East China is a collisional orogenic belt suturing the North China and Yangtze blocks. It was formed by Jurassic-Early Cretaceous continental collision, following the Triassic closure of the northernmost paleo-Tethyan Ocean.
Li, Nuo +4 more
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Geoscience Data JournalProspecting for and exploiting buried mineral deposits is currently challenging. Given their high precision and resolution, reflection seismic methods might be useful in such applications involving deep mineral deposits.
Kunqi Lin +6 more
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Giant porphyry deposits: Characteristics, distribution, and tectonic controls
, 2005 More than half of the 25 largest known porphyry copper deposits, defined in terms of contained copper metal, formed during three time periods: the Paleocene to Eocene, Eocene to Oligocene, and middle Miocene to Pliocene.
Peter Hollings (14739337) +2 more
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European Journal of Remote SensingHyperspectral images have been extensively employed to map alterations related to various ore deposits, particularly those associated with porphyry copper deposits.
Maryam Esmaeili +2 more
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Analysis of trace element distributions distal to porphyry copper deposits
, 1996 Enrichment and depletion of trace elements occurs in host rocks distal to porphyry copper deposits as a result of hydrothermal metasomatism. Subtle geochemical distributions in weakly propylitized host rocks is sufficient to indicate proximity to a ...
Nelson, James Baird, 1967-
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Assessing the origin of some representative Archean-Paleoproterozoic porphyry Cu ± Au deposits
, 2021 Most known porphyry Cu ± Au deposits are exclusively associated with oxidized and sulfurrich Phanerozoic arc-related magmas, but Precambrian analogues are rare.
Meng, Xuyang
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Mineral resource base of Russia’s copper: current state and development prospects
Горные науки и технологииThis study addresses the need for a comprehensive understanding of current state of Russia’s cupper mineral resource base. Its objective is to assess Russia’s copper reserves (balance reserves and forecast resources), analyze the spatial distribution of ...
Grigory Yu. Boyarko +2 more
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Porphyry molybdenum deposits hold significant potential for deep exploration. However, in the Dasuji molybdenum deposit, quartz porphyry, granite porphyry, and syenogranite are sporadically exposed beneath low mountains and hilly terrain, limiting the ...
Yingjie Wang +8 more
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