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Super Porphyry Cu Au Deposits

Dexing Porphyry Copper Deposits in Jiangxi China Hou Zengqian Institute of Mineral Resources Chinese Academy of Geological Sciences Beijing Zhong Dalai and Deng Wanming Institute of Geology and Geophysics Chinese Academy of Sciences Beijing Khin Zaw Centre for Ore Deposit Research (CODES SRC) University of Tasmania Australia Get price


Gold Distribution in Porphyry Copper Deposits of Kerman

Gold Distribution in Porphyry Copper Deposits of Kerman Region Southeastern Iran 249 Table 1 The summary of location reserve grade and size of some porphyry copper deposits in Kerman region Ore deposit Geographic location Reserves and grades Ore deposit size References Sar Cheshmeh Pariz area 2956 NGet price



Key Words Cadia gold copper porphyry drilling magnetics induced polarisation Introduction The Cadia Ridgeway deposit is one of a group of porphyry-style deposits discovered since 1992 by Newcrest geologists (Wood and Holliday 1995 Holliday et al 1998) at Cadia 20 kms south of Orange in the central tablelands of NSW Get price


What is a Porphyry Copper Deposit?

porphyry copper deposits were the first type of metallic mineral deposit to be exploited by large-scale bulk tonnage open pit mining methods Economies of scale and advances in technology have made it possible to profitably mine these deposits despite their relatively low ore grades Get price


The potential for porphyry copper deposits in northern

tence of porphyry copper deposits mainly from an empirical and practical point of view in contrast with the obviously important petrogenetic and/or tectonic perspectives We argue that this region is representative of the Tohoku province of northern Honshu and that it Get price



6-km Vertical Cross Section Through Porphyry Copper Deposits Yerington District Nevada Multiple Intrusions Fluids and Metal Sources Marco T Einaudi Stanford University Stanford California U S A Gaps in understanding of individual porphyry copper deposits result from limited exposures of the tops sides and bottoms of ore zones Get price


Porphyry Copper Gold Ore

This is an ore from a zone of Copper Porphyry which was located in southeastern New Brunswick The overall grade of the ore was assayed at 35% copper and 600ppb AU or gold This deposit is actually a project which myself and another prospector have been looking at over the last year Get price


Porphyry copper deposit

Porphyry copper deposits are copper orebodies that are formed from hydrothermal fluids that originate from a voluminous magma chamber several kilometers below the deposit itself Because of their large volume porphyry orebodies can be economic from copper concentrations as low as 0 15% copper and can have economic amounts of by-products such as molybdenum silver and gold Get price


Porphyry copper deposit

Porphyry copper deposits are copper orebodies 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 vertical dikes of porphyritic intrusive rocks from which this deposit type derives its Get price


Porphyry deposits ppt

Porphyry Deposits The Importance of Porphyry Deposits as a Copper and Gold Resource Gold Resources Copper Resources A Geological Cross Section through the Batu Hijau Porphyry Deposit Indonesia (920 million tons of ore grading 0 55 wt % Cu 0 42 g/t Au) Batu Hijau Porphyry Cu-Au Deposit Indonesia Batu Hijau Porphyry Cu-Au Ores Hypogene Get price


Characteristics and controls of the largest porphyry

9-5-2007Eleven gold‐rich porphyry copper and 14 epithermal gold deposits around the Pacific rim contain 200 t (‐7 million oz) of gold These large porphyry‐type deposits conform to a single overall model whereas the large epithermal gold deposits are varied in Get price


Porphyry Copper Assessment of the Mesozoic of East Asia

This area hosts several very large porphyry deposits exempli-fied by the Dexing deposit in eastern China that contains more than 8 000 000 metric tons of copper In addition large parts of the area are undergoing active exploration and are likely to contain undiscovered porphyry copper deposits Get price


What is a Porphyry Copper Deposit? by David F Briggs on

Although copper has been mined from a number of different types of mineral deposits porphyry copper deposits are the most important source for copper accounting for more than 60 percent of the annual world copper production and approximately 65 percent of the known total copper resource Get price


Bubbling Magma Chambers Cupolas and Porphyry

6-7-2010Porphyry copper deposits are the major source of copper and significant sources of molybdenum gold and other metals They are associated with the near-surface intrusion of small stocks of intermediate composition They can form when H2O-unsaturated magma is emplaced into wall rock that is cool enough that steep lateral thermal Get price


Porphyry Deposits The World's Largest Source of Copper

Porphyry copper deposit large body of rock typically a porphyry of granitic to dioritic composition that has been fractured on a fine scale and through which chalcopyrite and other copper minerals are disseminated Porphyry copper deposits commonly contain hundreds of millions of metric tons ofGet price


Porphyry copper deposit definition of Porphyry copper

The upper portions of porphyry copper deposits may be subjected to supergene enrichment This involves the metals in the upper portion being dissolved and carried down to below the water table where they precipitate Porphyry copper deposits are typically mined by open-pit methods Examples of porphyry copper deposits Chile Cerro Colorado [5]Get price


porphyry deposit

29-9-2019porphyry deposit 1 Porphyry copper occurs as large copper deposits centred around stocks of intermediate to acid porphyritic igneous rocks Most occur in Mesozoic and Tertiary orogenic belts They show concentric zones of minerals for example at Bingham Utah there is an inner zone of Cu/Mo and an outer zone of Pb/Zn/Ag Get price


Amarc Resources Ltd

Amarc is advancing three -owned IKE DUKE and JOY porphyry copper deposit projects located in different prolific porphyry districts in southern central and northern BC respectively Each of the three is located in proximity to industrial infrastructure - including power highways and rail Get price


Porphyry (geology)

Collectively these type of deposits are known as porphyry copper deposits Rhomb porphyry Rhomb porphyry is a volcanic rock with gray-white large porphyritic rhomb-shaped phenocrysts embedded in a very fine-grained red-brown matrix The composition of rhomb porphyry places it in the trachyte–latite classification of the QAPF diagram Get price


King Copper

Copper remains Arizona's most abundant and valuable metallic mineral product In 2017 Arizona provided 68% of domestic copper production in the U S Arizona has two major types of copper deposits Porphyry Copper in southern and central Arizona and the Volcanogenic Massive Sulfide Copper of the United Verde Mine in Jerome of central Arizona Get price


Porphyry copper deposit density

Porphyry copper deposit density is inversely related to the exposed area of permissive rock The linear regression line and confidence limits constructed with the 19 control areas can be used to estimate the number of undiscovered deposits given the size of a permissive area Get price


Porphyry copper deposit

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 Examples of porphyry molybdenum deposits are the Climax Urad and Henderson deposits in central Colorado and the Questa deposit in northern New Mexico Get price


Preliminary Model of Porphyry Copper Deposits

to many porphyry copper deposits (for example Bingham Utah) as well as crosscutting porphyry-style mineralization (for example Valea Morii Romania) Primary Commodities Copper is the primary commodity of economic interest in most porphyry copper deposits although some deposits with lowGet price


Geophysical signatures of copper

Geophysical signatures of copper-gold porphyry and epithermal gold deposits and implications for exploration Thesis submitted by Terence Hoschke BSc (hons) Submitted in partial fulfilment of the requirements for the Degree of Master of Science (Exploration Geoscience) University of Get price


Porphyry Copper Deposits

23-7-2013Most of the world's copper is extracted from a type of mineral deposit called a "porphyry copper" If you've seen a picture of a great big open-pit mining operation odds are that it was a porphyry copper deposit Some of the biggest man-made holes in the ground are porphyry copper minesGet price


Porphyry copper deposit

19-1-2013Porphyry copper and molybdenum deposits have a disturbingly phallic shape a tall rough cylinder capped by a bell-shaped zone of mineralisation And they are pretty big the largest at Bingham Canyon in Utah USA once having been ~2 5 km tall and 0 5 km wide with a 2 km bell-shaped zone of mineralisation affecting the intrusion and its surrounding country rock Get price


Gold concentrations of magmatic brines and the metal

Porphyry copper–molybdenum–gold deposits are the most important metal resources formed by hydrothermal processes associated with magmatism It remains controversial however whether the metal content of porphyry-style and other magmatic–hydrothermal deposits is dominantly controlled by metal partitioning between magma and an exsolving Get price


usgs report on porphyry copper deposits worldwide

The U S Geological Survey (USGS) collaborated with the China Geological Survey (CGS) to conduct a mineral resource assessment of Mesozoic porphyry copper deposits in East Asia This area hosts several very large porphyry deposits exemplified by the Dexing deposit in eastern China that contains more than 8 000 000 metric tons of copper Get price


Geochronology of the porphyry copper deposits and

6-6-1983K–Ar dating demonstrates that all but eight of 41 dated porphyry copper and related ore deposits of Mexico were emplaced during the Laramide episode of maximum plate convergence One older deposit is related to the Jurassic volcanic arc of western North America one Get price


Super Porphyry Cu Au Deposits

Porter T M (ed ) 2005 - Super Porphyry Copper Gold Deposits A Global Perspective PGC Publishing Adelaide v 1 280 pages - ISBN 978-0-9580574-2-4 This two volume set describes the great porphyry Cu-Au/Mo deposits and provinces around the globe and throughout geological time Get price


porphyry copper deposits

Porphyry copper deposits are copper orebodies 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 vertical dikes of porphyritic intrusive rocks from which this deposit type derives its Get price


Exploring for porphyry copper deposits

Exploring for porphyry copper deposits Potassic alteration Actinolite alteration Epidote alteration Chlorite alteration Fresh granite Fresh granite Alteration zoning Igneous magnetite in a granite (no ore deposit) Hydrothermal magnetite in potassic altered zone of an ore deposit Weak magnetic response Strong magnetic response Magnetic survey +-Get price



THE COPPER HILL PORPHYRY COPPER-GOLD PROJECT SUMMARY The Copper Hill Cu-Au deposit contains 535 000 tonnes of copper and 1 47 million ounces of gold It is located 5 kilometres north of Molong in eastern New South Wales and is held by Golden Cross Resources Ltd (GCR) (Figure 1) Figure 1Get price

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