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  • Drilling suggests second gold porphyry body at Los Cerros

    09/10/2020· Colombian-focused gold-copper explorer, Los Cerros Limited has provided an update on its drilling program at the Quinchia Gold Project's Tesorito prospect in Colombia's Mid-Cauca Belt.The company report that Tesorito hole TS-DH09, the first hole ever drilled into the northern Tesorito anomaly, has provided strong support for a northern porphyry system to be present at a similar depth to

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  • Gold Mountain - PNG porphyry mineralisation identified

    Recent times have seen a number of porphyry copper-gold gold discoveries by junior to mid-tier explorers, with the most advanced being Xanadu (ASX: XAM, TSX: XAM) with their Kharmagtai and associated discoveries in Mongolia, and Solgold (LSE: SOLG, TSX: SOLG) with the Cascabel Project in Ecuador. In addition, Sunstone Metals (ASX: STM) has the Bramaderos Project, also in Ecuador, from

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  • Drilling suggests second gold porphyry body at Los Cerros

    09/10/2020· Colombian-focused gold-copper explorer, Los Cerros Limited has provided an update on its drilling program at the Quinchia Gold Project's Tesorito prospect in Colombia's Mid-Cauca Belt.The company report that Tesorito hole TS-DH09, the first hole ever drilled into the northern Tesorito anomaly, has provided strong support for a northern porphyry system to be present at a similar depth to

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  • Native Mineral Resources hits copper at Queensland

    29/11/2020· The massive potential of porphyry copper-gold deposits has recently captured the market's attention following the discovery of several large mineral systems globally, including some potential company makers by ASX-listed explorers.

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  • Porphyry copper deposit - Wikipedia

    15/07/2019· Gold mineralization occurs as native gold, tellurides, cuprian gold, or auriferous sulfides, and is usually found in bornite-rich zones. Tellurides are much less than in the shallow epithermal

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  • PORPHYRY DEPOSITS - Earth Science

    molybdenum or copper and gold. The term porphyry copper now includes engineering as well as geological considerations; It refers to large, relatively low grade, epigenetic, intrusion-related deposits that can be mined using mass mining techniques.

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  • METALLIS EXPANDS THE CLIFF PORPHYRY COPPER-GOLD SYSTEM

    The Cliff Porphyry System shares similar geological characteristics, metallogeny and copper-gold grades with that of the nearby Kerr Deposit of Seabridge Gold's KSM project. The fault bounded porphyry dikes, hydrothermal breccias, alteration patterns and copper-gold grades (See Table 1) are all shallow features which reflect the tip of a large porphyry system preserved at depth. The

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  • Porphyry (geology) - Wikipedia

    Porphyry is a textural term for an igneous rock consisting of large-grained crystals such as feldspar or quartz dispersed in a fine-grained silicate rich, generally aphanitic matrix or groundmass. The larger crystals are called phenocrysts. In its non-geologic, traditional use, the term porphyry refers to the purple-red form of this stone, valued for its appearance. The term porphyry / ˈ p

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  • 2.2 Porphyry-epithermal mineral system | Geoscience Australia

    In the porphyry-epithermal mineral system, pathways for fluids and their contained metals, ligands and sulfur include faults, stratigraphic aquifers and crystallising intrusive bodies. Crystallising intrusions are particularly important pathways for high-temperature, proximal deposits such as porphyry Cu-Au-Mo deposits and Cu-rich skarns.

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  • Anatomy of Porphyry-Related Mineralised Au-Cu-Ag-Mo Systems

    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. The terrain into which porphyry intrusions are

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  • Epithermal Gold Deposits | Geology for Investors

    26/06/2020· They appear to be genetically and spatially linked to deep seated porphyry copper-gold deposits. High sulphide deposits are formed in a similar manner to low sulphide deposits, just at a greater depth with a more direct link to the underlying magma. Mining Techniques. Historically epithermal gold has been mined by underground techniques as miners followed the narrow, twisting veins from the

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  • Gold in porphyry copper deposits: its abundance and fate

    01/10/2002· Porphyry copper deposits are among the largest reservoirs of gold in the upper crust and are important potential sources for gold in lower temperature epithermal deposits. Whether gold remains in porphyry copper deposits is important both to their economic attractiveness and to the distribution of gold in the upper crust.

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  • Godolphin discovers gold-copper porphyry system in Lachlan

    Godolphin Resources says it has discovered a new copper-gold porphyry-style mineralised system at its Copper Hill East project 35km north of Orange, NSW, in the revered Lachlan Fold Belt following an initial round of deep RC drilling. The most notable intercept from the recent RC holes was 32m at 0.29 g/t gold and 0.13 per cent copper from 210m including 12m going 0.45 g/t

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  • A novel conceptual model of intrusion related gold bearing

    porphyry), so far less knowledge and understanding is assigned to deep seated mineralization (porphyry, Iron Oxides-Copper-Gold/IOCG). A specific relationship between those two deep seated ore styles emerges, that is the IOCG, confined to magmatic-hydrothermal type, is situated in the root zone of a deep porphyry system. Complementary

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  • Distribution and composition of gold in porphyry gold

    14/03/2018· The Biely Vrch deposit in the Western Carpathians is assigned to the shallow, sulfide-poor porphyry gold deposit type and has an exceptionally low Cu/Au ratio. According to 3-D geochemical models, there is a limited spatial correlation between Au and Cu due to the primary introduction of gold by a salt melt and Cu by low-density vapor. Despite a rough spatial correlation of gold grades with

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  • PATHFINDER EXPLORATION TECHNIQUES TARGETING PORPHYRY

    gold system and the northern and eastern margins of the Rain Hill monzodiorite intrusive centre (Internal reports, Kitto 2016). Utilising modern understanding of porphyry systems with new exploration techniques such as low level multi element geochemistry, SWIR, high power IP and reprocessed geophysics has defined a new mineralised system at Donnington in a mature exploration belt. It is

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  • Why a former Rio Tinto executive is backing Gold Mountain

    29/11/2020· Large copper–gold porphyry systems have often been referred to as 'elephants'. This is based on the massive size of these ore bodies, and also takes into account that the Papuan Mobile Belt, where Gold Mountain is exploring, is no stranger to elephants – including world-class mines such as Grassberg, Ok Tedi and Panguna. Liddy said the addition of Jones to the exploration team has made

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  • Epithermal Gold Deposits | Geology for Investors

    26/06/2020· They appear to be genetically and spatially linked to deep seated porphyry copper-gold deposits. High sulphide deposits are formed in a similar manner to low sulphide deposits, just at a greater depth with a more direct link to the underlying magma. Mining Techniques. Historically epithermal gold has been mined by underground techniques as miners followed the narrow, twisting veins from the

    Read More +
  • Commander Outlines Porphyry Copper-Gold targets on Burn

    The stock is cut by a series of sheeted WNW striking vertical pyrite veinlets with strong QSP altered haloes which are common at high-levels in porphyry Cu-Au systems and termed "D-veins

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  • METALLIS EXPANDS THE CLIFF PORPHYRY COPPER-GOLD SYSTEM

    The Cliff Porphyry System shares similar geological characteristics, metallogeny and copper-gold grades with that of the nearby Kerr Deposit of Seabridge Gold's KSM project. The fault bounded porphyry dikes, hydrothermal breccias, alteration patterns and copper-gold grades (See Table 1) are all shallow features which reflect the tip of a large porphyry system preserved at depth. The

    Read More +

porphyry gold systems

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