Altamira Gold Defines Gold-in-Soil Anomaly at Mombaque …
It is becoming clear that porphyry-style gold mineralization at Cajueiro extends beyond the Maria Bonita mineralized system where we recently drilled 146m @ 1 g/t gold in porphyritic host rocks and that this could be one of several porphyry gold deposits at Cajueiro." CAJUEIRO PROJECT
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THE ANDEAN PORPHYRY SYSTEMS
Andean Porphyry Systems - F. Camus 47 The Andean Porphyry Deposits In the central Andes, porphyry copper-molybdenum and gold-rich porphyry deposits occur in seven temporally discrete, roughly parallel north-trending metallogenic belts that extend from central Chile and NW Argentina to southern Perú. Of the seven belts, six occur in Chile and
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Distribution and composition of gold in porphyry …
The origin and fate of gold are predominantly controlled by the unusually shallow setting of the porphyry system, resulting in two contrasting …
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Porphyry Copper-Gold-Molybdenum Mineralization in …
The Island Copper Cluster (ICC), situated at the northern end of Vancouver Island, consists of five porphyry copper-gold-molybdenum systems genetically associated with stock and dike-like rhyodacitic porphyries of Jurassic age (approximately 180 ma) that intruded the island arc, calc-alkaline basalts, andesites and pyroclastic rocks of the comagmatic Bonanza …
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Gold 24 International Symposium
Lab Visit: Gold Analyses to Support Exploration and Mining: FREE, registration required: Short Course: Microscopic Gold, Reflected Light Microscopy and Paragenesis: $190.00: $210.00: $250.00: $275.00: $70.00: $80.00: Short Course: Porphyry Copper-Gold Systems – Foundations and Pathways Towards Discovery: $450.00: $485.00: $500.00: $550.00 ...
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The Geologic Setting of Intrusion-Related Hydrothermal Systems …
Steve Garwin, 2002. "The Geologic Setting of Intrusion-Related Hydrothermal Systems near the Batu Hijau Porphyry Copper-Gold Deposit, Sumbawa, Indonesia", Integrated Methods for Discovery: Global Exploration in the Twenty-First Century, Richard J. Goldfarb, Richard L. Nielsen ... The peripheral porphyry systems lack the early copper-sulfide ...
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Hannan Doubles Footprint Of The Copper-Gold Porphyry At …
The area is characterized by steep topography on the eastern flank of the Central Cordillera with elevations between 800 m and 2,000 m above sea level (a.s.l.). The project was discovered in 2021 during an extensive greenfields exploration program initiated by Hannan for back-arc porphyry copper-gold systems.
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Distribution and composition of gold in porphyry gold systems…
The mineral name refers to the Javorie stratovolcano, which hosts most porphyry gold systems in this volcanic field. Within the inclusions, javorieite occurs in the form of small (up to 15 mm ...
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Crustal magma oxidation state and endowments in porphyry …
Porphyry copper deposits (PCDs) supply the majority of the world's copper (Cu) as well as significant amounts of molybdenum (Mo) and gold (Au). The formation of these …
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GOLD-RICH PORPHYRY SYSTEMS IN THE MARICUNGA …
Reconstruction of the porphyry systems suggests that gold-bearing quartz stockworks were generated 600 to 1,000 m beneath paleosurfaces. Gold-rich porphyry mineralization in the Maricunga belt is closely comparable to that in the Philippines because of the association with dioritic to quartz dioritic porphyry stocks intruded into andesitic ...
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Porphyry Systems and Skarns
Porphyry systems are universally typified by three main features: (1) presence of veins and veinlets forming stockworks, within which are disseminated sulphides of Fe, Cu, Mo, Pb and Zn, as well as native Au, and minerals of W, Bi and Sn; (2) the mineralisation is spatially and genetically related to intrusive bodies, of which at least one has ...
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Titan Minerals partners with Hancock Prospecting in major …
The Linderos project comprises four contiguous mineral concessions totalling an area of 143 square kilometres in southern Ecuador that have highlighted strong potential for substantial extensions, with preliminary work suggesting the presence of multiple porphyry targets and evidence of shallow epithermal gold systems also observed.
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Gold24 International Symposium
The enigmatic origin of orogenic gold systems: magmatic, crustal metamorphic, or sub-crustal sources with exploration inferences: Caitlin Jones: ... Short Course: Porphyry Copper-Gold Systems – Foundations and Pathways Towards Discovery: $450.00: $485.00: $500.00: $550.00: $150.00: $165.00:
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Ambient Noise Tomography in Porphyry Copper …
Figure 2 gives a schematic diagram of a porphyry system and a hypothetical velocity response that attempts to map velocity onto the various geological attributes. We note that it is possible to model this type of system mathematically. ... The porphyry-related, copper and gold deposits of the region formed during and after amalgamation of the ...
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The Atbara porphyry gold–copper systems in the Red Sea …
Atbara city is located between the Nile and Atbara rivers, approximately 300 km northeast of Khartoum. The Atbara porphyry gold–copper system is situated at eastern part of Atbara about 70 km in the Red Sea Hills, Neoproterozoic Arabian–Nubian Shield, NE Sudan.
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Altamira Gold Defines Gold-in-Soil Anomaly at Mombaque …
Vancouver, British Columbia–(Newsfile Corp. – October 16, 2024) – Altamira Gold Corp. (TSXV: ALTA) (FSE: T6UP) (OTC Pink: EQTRF), ("Altamira" or the "Company") is pleased to announce further progress in the ongoing evaluation of porphyry-related gold mineralization within the Cajueiro project area. Highlights: Ongoing fieldwork at the Mombaque prospect, …
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Copper-Gold Porphyry Style Deposit Characteristics …
evidence to support excellent potential for a fertile porphyry copper-gold system on the project. The next step on this project is to conduct some strategically located IP survey lines across the main anomalies in order to detect large accumulation of disseminated copper sulphide at depth that would indicate the presence of a buried mineralised ...
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Porphyry Gold Deposits,
Abstract. 1 The Kori Kollo deposit is the largest gold deposit in Bolivia (150 metric tons Au; 3rd largest in South America). Hypogene mineralization is hosted in wallrock and a sheeted pyrite-polymetallic vein system developed in the …
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Copper Standard confirms porphyry copper-gold system …
Copper Standard Resources Inc. [CSE-CSR] reported results from the first 10 holes of drilling at the Colpayoc copper-gold exploration project in the Yanacocha Mining District in Cajamarca, Peru.The company has completed 1,926.1 metres (6,319 feet) of core drilling confirming the presence of a porphyry copper-gold system and verifying and expanding the oxide and …
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Alkalic-type epithermal gold deposit model | U.S. Geological …
This report summarizes the primary characteristics of alkalic-type epithermal gold (Au) deposits and provides an updated descriptive model. These deposits, primarily of Mesozoic to Neogene age, are among the largest epithermal gold deposits in the world. Considered a subset of low-sulfidation epithermal deposits, they are spatially and genetically linked to small …
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Gold-rich porphyry systems in the Maricunga Belt, northern Chile
Reconstruction of the porphyry systems suggests that gold-bearing quartz stockworks were generated 600 to 1,000 m beneath paleosurfaces.Gold-rich porphyry mineralization in the Maricunga belt is closely comparable to that in the Philippines because of the association with dioritic to quartz dioritic porphyry stocks intruded into andesitic ...
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Porphyry Systems and Skarns
Porphyry systems are universally typified by three main features: (1) presence of veins and veinlets forming stockworks, within which are disseminated sulphides of Fe, Cu, Mo, Pb and …
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PPT
Porphyry and Epithermal Systems -Science-driven Exploration Successes Richard Sillitoe. Porphyry and epithermal deposits Porphyry copper-molybdenum and copper-gold deposits are centred on shallow-level porphyry intrusions Grasberg, Indonesia Epithermal gold and silver deposits are typically hosted by volcanic rocks Round Mountain, Nevada. …
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Gold-Copper Systems in Porphyry Environments
The major portion of the gold and most of the copper resources of the southwest Pacific Rim occur within porphyry copper-gold deposits (Fig. 1.2), formed in subduction …
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Hydrothermal rutile chemistry and U-Pb age
In addition, rutile exhibits compositional zoning in BSE images and high contents of W, Fe, V and Sb that are characteristic of hydrothermal rutiles from porphyry copper systems …
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(PDF) SOUTHWEST PACIFIC RIM GOLD-COPPER SYSTEMS: …
The formation of economic porphyry copper (-gold) deposits: constraints from microanalysis of fluid and melt inclusions
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Porphyry Copper Systems1 | Economic Geology
Porphyry Cu systems host some of the most widely distributed mineralization types at convergent plate boundaries, including porphyry deposits centered on intrusions; …
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Systems-Deposits-Commodities-Critical Minerals …
as gold (Au), silver (Ag), lead (Pb), zinc (Zn), copper (Cu), molybdenum (Mo), nickel (Ni), iron (Fe), and phosphorus (P). The solution to this problem, employed in Phases 2 and ... cal extents, as in porphyry Cu-Mo-Au systems that extend from the subduction zone to …
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Einaudi 1994 High Sulfidation and Low Sulfidation Porphyry …
Porphyry Copper - Epithermal Gold Systems: The View from Above, 1990 With increased interest in precious metals during the 1980s, research in ore deposits shifted to gold- rich porphyry copper deposits, epithermal systems and other environments of precious- metal deposition. The result is important new information on: (1) geologic settings of ...
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IGNEOUS PETROLOGY OF THE COLOSA GOLD-RICH …
continuum of porphyry systems from Cu-Au, through Au-Cu, to the Au-rich and Cu-poor counterpart (Sillitoe, 1979; Sillitoe, 2000; Seedorff et al., 2005). Porphyry gold systems are not a very common type of gold deposit. Deposits assigned to this group include a few porphyries in the Chilean Maricunga belt
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