 | | Journal (article/letter/editorial) | | of Miocene porphyry systems in the Cajamarca district, northern Peru Received: 29 September 2004 / Accepted:...deposits located in the auriferous Cajamarca district of northern Peru. The El Galeno deposit (486 Mt at...spatially and temporally related to weak quartz–muscovite (phyllic) alteration. High Au grades are associated...Galeno-Michiquillay) and Au-rich (Minas Conga) deposits in the Cajamarca region are of similar age (early–middle...Keywords Northern Peru Æ Copper Æ Gold Æ Miocene Æ Porphyry Introduction The Cajamarca mining region, located |  | | Journal (article/letter/editorial) | | deposits and the giant Yanacocha Au deposit, northern Peru R. C. I. Davies and P. J. Williams DOI 10.1179/037174503225002171...patrick.williams@jcu.edu.au) The Cajamarca region of northern Peru hosts a number of significant Tertiary...Au deposit and the Early-Mid Miocene Au-rich Minas Conga and Cerro Corona porphyry deposits. Based on...phyllic alteration. High-sulphidation deposits near Cajamarca, including the giant Yanacocha mine and possibly...porphyry copper deposits of northern Chile and southern Peru. Note the wide range of ages Applied Earth Science |  | Volkov, A. V., Savva, N. E., Sidorov, A. A., Egorov, V. N., Shapovalov, V. S., Prokof’ev, V. Yu., Kolova, E. E. (2006) Spatial distribution and formation conditions of Au-bearing porphyry Cu-Mo deposits in the Northeast of Russia. Geology of Ore Deposits, 48 (6) 448-472 doi:10.1134/s107570150606002x | Journal (article/letter/editorial) | | Lepanto Far Cerro Casale Panguna Batu Hijau Minas Conga Ok Tedi El Teniente Escondida Bajo de Alumberta...States Philippines Chile Papua New Guinea Indonesia Peru Papua New Guinea Chile ″ Argentina Papua New Guinea...important for the economic development of Chile, Peru, Uzbekistan, Kazakhstan, Mongolia, Armenia, Serbia...Porphyry Cu–Mo metallogenic belts in the marginal-sea province of northeastern Asia. (1) Areas of volcanic rocks;...include quartz, orthoclase, chlorite, biotite, muscovite, and zeolites. The ore contains 1.0–39.0% Cu, |  | | Report (issue) | | typically contain sericite, which is composed of muscovite that has a strong 2.20-μm absorption feature....ratios and methods, but different band thresholds, muscovite-rich, phyllic-altered rocks have also been regionally...2003). Alunite, kaolinite, pyrophyllite, and muscovite were mapped at the Red Mountain and Sunnyside...oxide minerals are quartz, K-feldspar, biotite, muscovite (sericite), magnetite, chlorite, anhydrite, and...alteration minerals are K-feldspar, biotite, muscovite (sericite), albite, anhydrite, chlorite, calcite |  | | Book | | Agua Rica Porphyry Cu-Mo-Au Deposit，Catamarca Province, Northwestern Argentina. Part 1 : Exploration...and in northern Chile and neighbouring southern Peru. With the exception o f Bingham Canyon, none were...the US ”South-west” and northern Chile to southern Peru, and were Cu-Mo orebodies (Gilmour, et. al. 1995)...exploration was filling the gaps between the US and Peru, w ith major discoveries in Mexico and elsewhere...f southern Russia. Further east a metallogenic province embracing early to mid Mesozoic deposits runs |  | | Book | | The figure shows tailings from the Antamina Mine (Peru). A copper–zinc skarn formed in connection with...example are tailings from the Ticapampa copper mine (Peru) that consist of 1.6 million tonnes of material...volcanic complex using ASTER imagery in Southern Peru to detect alteration zones and volcanic structures—A...of niobium comes from the Araxa carbonatite in Minas Gerais (Brazil), the remainder is currently largely...in Brazil and Canada. Fig. 2.14 Tantalite from Minas Gerais (Brazil) (photo F. Neukirchen/Mineralogical |
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