Porphyry ore deposits
WebThe ore grade mineralisation is predominantly hosted by a quartz monzonite porphyry phase of the CIC, although a small portion cuts a roof pendant of Forest Reefs Volcanics at the … WebPorphyry ore deposits are the Earth's major resources of copper, molybdenum, and rhenium (Sillitoe, 2010) and also provide significant amounts of gold, silver, and other metals. …
Porphyry ore deposits
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WebIn all cases, deposits are thought to have formed at shallow crustal levels (<1.5 km for epithermal and <6 km for porphyry deposits: Seedorff et al., 2005; Simmons ... (Simmons et al., 2005). In skarn deposits, ore … Characteristics of porphyry copper deposits include: The orebodies are associated with multiple intrusions and dikes of diorite to quartz monzonite composition with porphyritic textures.Breccia zones with angular or locally rounded fragments are commonly associated with the intrusives. The sulfide … See more Porphyry copper deposits are copper ore bodies that are formed from hydrothermal fluids that originate from a voluminous magma chamber several kilometers below the deposit itself. Predating or associated with those fluids are … See more Geological background and economic significance Porphyry copper deposits represent an important resource and the dominant source of copper … See more Copper is not the only metal that occurs in porphyry deposits. There are also porphyry ore deposits mined primarily for molybdenum, many of which contain very little copper. … See more Mexico • Cananea • La Caridad • Santo Tomas Canada See more
WebNov 16, 2024 · In terms of tonnage, copper porphyry deposits range in size from 100 million tonnes to upwards of 10 billion tonnes of ore — this high tonnage of mineralized rock and … WebOn the basis of its geological characteristics, the Gushan iron deposit should be assigned to volcano-hydrothermal type with hematite-quartz as its principal mineral assemblage. Iron concentration of the ore solution has been estimated from the ratio of hematite to quartz in the ore. By using experimental and thermodynamic data, the solubility of ferro-minerals at …
WebThe eastern Sunda Arc in Indonesia contains four giant porphyry Cu-Au / high sulfidation epithermal gold deposits in Sumbawa and western Java. Numerous… 15 comments on LinkedIn Web2 days ago · The Company also owns a 100% interest in the Lac Pegma copper-nickel-cobalt deposit located 50 kilometres southeast of Fermont, Quebec and is earning a 100% interest in the road accessible ...
WebMay 28, 2014 · Ore Minerals. Copper in these deposits generally occurs in copper-iron sulfide minerals such as chalcopyrite (CuFeS 2) and bornite (Cu 5 FeS 4). Brassy …
Web2 days ago · That's fair, but with an emerging mineral deposit wrong. I first bought core just under 6c and Degrey at 2.6c because there drilling was all just open and replicating the structure. Resource fit inside structure, so if structure is large resources tend to be. Geez Spq have 2000m long, 1500m wide. Down to 1000m as start point structure already. signs of ips beetleWebThe seven gold-silver deposits within the district show common features such as multiple complex veins, an abundance (up to 30% in ore) of base-metal sulphides, a wide range of Ag/Au ratios and the common occurrence of carbonate. Quartz-vein textures indicate open-space-filling at shallow crustal levels. therapeutic thymesWebFeb 9, 2024 · Copper is one of the most important global infrastructure metals, and demand for it is rising. In 1980, less than 8 million tons were produced globally – a ... therapeutic thinking trainingWebRepresentative ore samples taken were analysed for ore chemistry by means of Fire Assay – Atomic Absorption Spectrometry ... In Indonesia, gold is typically mined out from epithermal, porphyry and skarn deposit types occurred within volcanic belts along magmatic arc or active continental margin setting. signs of invalidationWebORE CONTROLS/EXPLORATION GUIDES: Zoning of near surface hot-spring Hg-S deposits to zones of vuggy silica and advanced argillic alteration at depth hosting gold and/or silver … signs of intravascular injectionWebWallrock porphyry surface to 800 od metres and hole 7 900m see that maybe part of the above. The very high mo, means a lower copper grade can be worked with economically also. But bits are missing that cause risk that most investors dislike. signs of iron deficiency anemia in womenWebAn initial porphyry ore lode is encountered and developed. Further out in the footwall there is an ore unit sitting against an ultra-mafic contact. Development of the 2401 (ultra-mafic) lodes are delayed as late as possible but just in time for stoping extraction. therapeutic therapy