porphyry gold systems

porphyry gold systems

Gold Porphyry System Discovered at Kremice Project in Serbia

Gold Porphyry System Discovered at Kremice Project in Serbia. Vancouver, British Columbia--(Newsfile Corp. - Octo) - Tethyan Resource Corp. (TSXV: TETH) ("Tethyan" or the "Company") is pleased to report the discovery of an outcropping gold porphyry system on the western side of the Kremice project, southwestern Serbia (Figures 1 and 2).). Kremice is located 10 kilometres to the ...

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Gold Porphyry System Discovered at Kremice Project in ...

Vancouver, British Columbia--(Newsfile Corp. - Octo) - Tethyan Resource Corp. (TSXV: TETH) ("Tethyan" or the "Company") is pleased to report the discovery of an outcropping gold porphyry system on the western side of the Kremice project, southwestern Serbia (Figures 1 and 2).Kremice is located 10 kilometres to the north of the Rudnica copper-gold project, and within two kilometres ...

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PPT – Porphyry and Epithermal Systems -Science-driven ...

Porphyry and epithermal systems the state of play at end of 1960s (2) Ages of copper and gold belts and provinces poorly defined (isotopic dating in its infancy) Zoning patterns of hydrothermal alteration in porphyry and epithermal deposits poorly appreciated ; Porphyry gold and gold-rich porphyry copper deposits undefined (notwithstanding Panguna)

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Anatomy of Porphyry-Related Mineralised Au-Cu-Ag-Mo …

systems have allowed us to apply time to porphyry systems and better understand their staged evolution as well as the evolved hydrothermal fluids which participate in low sulphidation epithermal vein formation (figure 3). Porphyry Au-Cu-Mo Although porphyry Au-Cu-Mo deposits display considerable variation, some broad generalisations are possible.

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Porphyry Copper Systems* - GeoScienceWorld

Porphyry Cu systems host some of the most widely distributed mineralization types at convergent plate boundaries, including porphyry deposits centered on intrusions; skarn, carbonate-replacement, and sediment-hosted Au deposits in increasingly peripheral locations; and superjacent high- and intermediate-sulfidation epithermal deposits.

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bullmarketrun.com

understanding Of porphyry copper systems are then briefly reviewed as a prelude to the currently preferred genetic model for gold-rich porphyry deposits. Methods used in ex- ploration and discovery of gold-rich porphyry deposits are then discussed, With special attention paid to the relatively minor role played by descriptive and genetic models ...

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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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Colorado Discovers Porphyry Copper-Gold-Moly System and ...

 · The alteration and mineralization encountered by the drill holes is consistent with the phyllic "cap" or pyrite shell in the upper/outer parts of a porphyry Cu-Au-Mo system, and is similar to the ...

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Porphyry Deposits: The World's Largest Source of Copper ...

 · Porphyry Copper deposits play an important role in the global economy. These deposits provide over 60% of the world’s copper and include other important metals such as molybdenum, gold and silver. Porphyry copper deposits are known for their low grades and very high tonnage. A porphyry is not a rock type, but rock with a particular texture.

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Epithermal Gold Deposits Characteristics

A fascinating group and characteristic of Epithermal gold deposits is that you can virtually see them forming today, simply by visiting hot springs. Like those with Yellowstone in Wyoming or Rotorua in New Zealand. This photo is Pamukkale, low sulfidation hot springs in Turkey, with a beautiful white centre terraces. If you like hot springs, you’ll love epithermal.

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Magmatic evolution of the Cerro Maricunga gold porphyry ...

The gold mineralization is hosted within a 23‒15 Ma old complex system of interwoven porphyry intrusions, flows, dikes and diverse breccia types, all forming part of a large diatreme system. In particular, phreatomagmatic and phreatic processes contributed to the formation of the synmineral diatreme complex.

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Gold in porphyry copper deposits: its abundance and fate ...

1. Introduction. Porphyry copper deposits contain up to 100 t of gold and are among the largest reservoirs of gold in the upper crust (Kerrich et al., 2000).They are commonly surrounded by deposits and country rock containing gold that is thought to have been derived from them (Jones, 1992).Gold can be removed from porphyry copper systems by vapors that separate at high temperatures or by ...

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What Investors Need to Know About Porphyry Copper Deposits

Porphyry deposits are one of the most important sources of copper and molybdenum, and are also major sources of silver, gold, and tin.In addition, porphyry deposits may host valuable by-products ...

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Colorado Discovers Porphyry Copper-Gold-Moly System and ...

3  · Colorado Resources Ltd. is exploring high-grade gold and copper in the Golden Triangle and the Toodoggone area of British Columbia. The portfolio includes the flagship Castle property, a porphyry copper-gold project located in the Red Chris mining district of the Golden Triangle neighbouring GT Gold’s Tatogga property.

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Gold in porphyry copper deposits: its abundance and fate ...

1. Introduction. Porphyry copper deposits contain up to 100 t of gold and are among the largest reservoirs of gold in the upper crust (Kerrich et al., 2000).They are commonly surrounded by deposits and country rock containing gold that is thought to have been derived from them (Jones, 1992).Gold can be removed from porphyry copper systems by vapors that separate at high temperatures or by ...

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Porphyry copper deposit - Wikipedia

Radial fracture zones outside the pyrite halo may contain lead-zinc veins with gold and silver values. THEORY The spectrum of characteristics of a porphyry copper deposit reflects the various influences of four main and many transient stages in the evolution of the porphyry hydrothermal system .

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Colorado Resources : Discovers Porphyry Copper-Gold-Moly ...

3  · Company Director Michael Cathro, P.Geo. also commented: 'Our 2019 drilling program demonstrates the existence of a porphyry copper-gold-moly system at Castle East. In addition, field surveys defined several other excellent porphyry and precious-metal-enriched polymetallic vein targets for future follow-up.

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Broadway Discovers Porphyry System at Madison – Broadway ...

 · Broadway Discovers Porphyry System at Madison 10/26/2017. Vancouver, BC – October 26, ... About Broadway Gold Mining Ltd. Broadway Gold Mining Ltd. is a resource company focused on development-stage projects with advanced exploration potential. The company owns a interest in the Madison copper-gold project located in the Butte-Anaconda ...

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Gold-rich porphyry systems in the Maricunga Belt, northern ...

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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Preliminary Model of Porphyry Copper Deposits

Porphyry copper deposits result from the complex interactions and feedbacks of many processes. Owing to the complexity, a succinct definition that includes the essential attributes of this deposit class is elusive. Consequently, this descriptive model uses a working definition of a porphyry copper deposit.

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bullmarketrun.com

understanding Of porphyry copper systems are then briefly reviewed as a prelude to the currently preferred genetic model for gold-rich porphyry deposits. Methods used in ex- ploration and discovery of gold-rich porphyry deposits are then discussed, With special attention paid to the relatively minor role played by descriptive and genetic models ...

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GOLIATH CONFIRMS TWO LARGE PORPHYRY SYSTEMS ON …

o Multiple lines of evidence confirm the presence of porphyry systems on Lucky Strike: 1. Prolific coarse gold in placer creeks draining extensive area containing widespread porphyry related polymetallic veins; 2. Soil geochemistry defined a 2000 x 400 metre Au-Cu-Mo-Bi-Sb soil anomaly that

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Geology of Porphyry Copper Deposits

When it comes to porphyry deposits there are a number of variations on a theme and the deposits can be copper only, they can be copper gold, copper molybdenum or molybdenum only but regardless of the metal mix the process of deposit formation is the same.

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Gold-rich porphyry systems in the Maricunga Belt, northern ...

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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Colorado Resources Discovers Porphyry Copper-Gold-Moly ...

3  · Company Director Michael Cathro, P.Geo. also commented: "Our 2019 drilling program demonstrates the existence of a porphyry copper-gold-moly system at Castle East. In addition, field surveys ...

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Magmatic evolution of the Cerro Maricunga gold porphyry ...

The gold mineralization is hosted within a 23‒15 Ma old complex system of interwoven porphyry intrusions, flows, dikes and diverse breccia types, all forming part of a large diatreme system. In particular, phreatomagmatic and phreatic processes contributed to the formation of the synmineral diatreme complex.

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Descriptive model of Porphyry Au - USGS

ORE 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 quartz-chalcedony veins may indicate presence of porphyry gold system at depth of 0. 1.0 km below paleosurface. Zoning may have a lateral component of 3 km. Ore bodies ...

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(PDF) Distribution of gold in porphyry copper deposits

Analysis of 55 porphyry copper deposits demonstrates a continuum between porphyry copper-gold deposits emplaced at a median depth of 1 km, with a median size of 160 million metric tons of copper ...

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Porphyry-Epithermal Transition: Maricunga Belt, Northern …

Porphyry-Epithermal Transition: Maricunga Belt, Northern Chile ... posit at Refugio and the Cavancha deposit at La Pepa are telescoped systems in which banded quartz veinlets ... quartz veinlets in the Maricunga porphyry gold deposits as in-terbanded translucent, white, gray, and black varieties of

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Intrusion Related Gold Deposits

unexchanged waters, probably introduced into the hydrothermal system during cooling. Comments on genesis Although still regarded as controversial, Intrusion Related Gold Deposits (IRGD) represents a new class of mineral deposit (Sillitoe, 1991; Thompson et al., 1999). The consistent association of IRGDs with certain magma types, their consistent

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Alkaline-Related Gold Systems: An Overview | Seeking Alpha

 · Some alkaline epithermal gold deposits found in the shallow levels may just be the tip of an iceberg so to speak, because there may exist much larger, alkaline porphyry gold systems …

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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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