porphyry copper deposits

your location:

Cases Center

porphyry copper deposits

porphyry copper deposits

porphyry copper deposits

(PDF) The formation of porphyry copper deposits

05/11/2016 porphyry copper deposits of northern Chile. Contrib Mineral. Petrol 144:347–364. doi: 10.1007/s00410-002-0402-5. Ballhaus C (1993) Oxidation states of

get price

Geology of Porphyry Copper Deposits

22/03/2015 Porphyry deposits and IOCG’s are the world’s primary source of copper and they account for more than 60% of the copper production globally but in addition to copper they also supply 100% of the world’s molybdenum production, 10 to 15% of global uranium production and a significant proportion of the world’s gold production in short they make up a critical group of deposits.

get price

Porphyry Copper Deposit Model USGS

This report contains a revised descriptive model of porphyry copper deposits (PCDs), the world’s largest source (about 60 percent) and resource (about 65 percent) of copper and a major source of molybdenum, gold and silver. Despite relatively low grades (average 0.44 percent copper in 2008), PCDs have significant economic and societal impacts due to their large size (commonly hundreds of

get price

(PDF) Porphyry deposits ResearchGate

porphyry copper deposits, such as Bingham and Bajo de la. Alumbrera, sulphide deposition was primarily due to cooling. of metal-rich, saline brines below 400ºC (Ulrich et al., 2001; Redmond et al

get price

Coed y Brenin Porphyry-copper deposit: guided field itinerary

Leaching of copper from the deposit by groundwaters led to the formation, on the other side of the hill from here, of a 70-acre peat deposit so richly impregnated with copper that it was profitable to strip the peat, ash it in a stone kiln and sent the ashes off to Swansea for smelting. The site, known as the Turf Copper Mine, was worked in the early 19th Century. Back then, it was believed

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, Mt. Emmons, and Henderson deposits in central Colorado; the White Pine and Pine Grove deposits in Utah; the Questa deposit in northern New Mexico; and Endako in British Columbia.

get price

Porphyry copper deposits of the world USGS

Porphyry copper deposits of the world. Information on porphyry copper deposits from around the world with grade and tonnage models, a general classification based on geologic setting, mineralogy, with data allowing locations of these deposits to be plotted using GIS. View. Show in a web browser window: Global. Show in Google Earth or other KML viewer: porcu.kml (uncompressed 1.2M bytes) porcu

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. Bingham Canyon, Salt Lake County, Utah (Photo taken by Ken Krahulec, July 2005). Over the last century

get price

Porphyry copper deposit mineralogy Britannica

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 of ore that averages a fraction of 1 percent copper by weight; although they are low-grade, the

get price

Porphyry Copper Deposits Geology for Investors

23/07/2013 Porphyry copper deposits are typically very-low grade with between 0.4 and 1% copper. The main mineral is chalcopyrite, which is finely disseminated through the host porphyritic rocks. The only reason these ore bodies are economic is because porphyries are huge, with hundreds of millions of tonnes available in a fairly low-cost mining setting. Many porphyry copper mines have significant

get price

Porphyry copper deposits of the world USGS

Porphyry copper deposits of the world. Information on porphyry copper deposits from around the world with grade and tonnage models, a general classification based on geologic setting, mineralogy, with data allowing locations of these deposits to be plotted using GIS. View. Show in a web browser window: Global. Show in Google Earth or other KML viewer: porcu.kml (uncompressed 1.2M bytes) porcu

get price

Porphyry copper deposit mineralogy Britannica

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 of ore that averages a fraction of 1 percent copper by weight; although they are low-grade, the

get price

Porphyry Copper Aurania Resources

Porphyry deposits produce approximately 60% of the world’s copper. Most of these deposits lie in the Pacific Rim, also known as the Ring of Fire, an arc that stretches from Papua New Guinea to the southern tip of Chile. The copper is contained within roughly cylindrical granitic bodies that are remnants of the magma core beneath volcanoes

get price

Porphyry Copper Deposits What Investors Need to Know INN

04/05/2017 Porphyry copper 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

get price

Porphyry Copper Deposits geo590

Porphyry copper deposits are heavily studied and mined due to the abundance of base metals (Cu, Mo, etc.), and significant byproduct metals such as gold and silver. Porphyry deposits account for ~60% of copper production and 95% of molybdenum production globally (Sinclair 2007). The Canadian Cordillera in British Columbia provides more than 40% of copper, 10% gold and the majority of global

get price

Porphyry copper deposits SlideShare

31/07/2018 Porphyry copper deposits Epithermal deposits originate in or nearby porphyritic intrusives which were saturated by water as they intruded in shallow areas of the crust (less than 6 km depth(. The developing hydrothermal systems are characterized by the interaction, to different degrees, of fluids coming directly from the parental intrusive and from meteoric surface waters. Hydrothermal

get price

(PDF) Porphyry deposits ResearchGate

porphyry copper deposits, such as Bingham and Bajo de la. Alumbrera, sulphide deposition was primarily due to cooling. of metal-rich, saline brines below 400ºC (Ulrich et al., 2001; Redmond et al

get price

Porphyry copper deposits in China Open Access Repository

Porphyry Cu deposits in China contain a total resource of ~47 million tonnes (Mt) Cu at average grades rangingmostly from 0.2 to 0.7% Cu (most Approximately 50% of the giant and ~35% of the intermediate porphyry Cu deposits in China formed in arcsettings. The Xiongcun, Pulang, Duobuza, Bolong, and Naruo deposits in Tibet formed in continental arc settings, and the Central Asian porphyry Cu

get price

Porphyry Deposits PDF Geology Economic Geology

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. Wt.% cu, 0. G / t au) Supergene Malachite Spatial Distribution of Porphyry Deposits The Origin of Porphyry Cu-Au-Mo Magmas Hydration Melting Porphyry-epithermal-skarn system overview.

get price

Explainer: Why are so many explorers chasing a porphyry

01/03/2020 When it comes to porphyry deposits, size counts. These multigenerational monsters are responsible for ~60 per cent of the world’s copper, most of its molybdenum, and significant amounts of gold and silver. Their easy-mining large volumes make up for the low grades, typically between 0.3 per cent to 1 per cent copper equivalent. But these company makers come with their own challenges

get price

Porphyry Copper Deposits Geology for Investors

23/07/2013 Porphyry copper deposits are typically very-low grade with between 0.4 and 1% copper. The main mineral is chalcopyrite, which is finely disseminated through the host porphyritic rocks. The only reason these ore bodies are economic is because porphyries are huge, with hundreds of millions of tonnes available in a fairly low-cost mining setting. Many porphyry copper

get price

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. A porphyry copper deposit is defined as follows: 1. One wherein copper-bearing sulfides

get price

Porphyry copper deposits of the world: database, maps, and

The foundation of mineral deposit models is information about known deposits—the purpose of this publication is to make this kind of information available in digital form for a group of porphyry copper deposits. This publication contains a computer file of information on porphyry copper deposits around the world. It also presents new grade and tonnage models for three subtypes of porphyry

get price

Porphyry Copper Deposits geo590

Porphyry copper deposits are heavily studied and mined due to the abundance of base metals (Cu, Mo, etc.), and significant byproduct metals such as gold and silver. Porphyry deposits account for ~60% of copper production and 95% of molybdenum production globally (Sinclair 2007). The Canadian Cordillera in British Columbia provides more than 40% of copper, 10% gold and the majority of global

get price

Porphyry Copper Systems*

Porphyry Copper Systems* lithocaps above porphyry Cu deposits, where massive sulfide lodes tend to develop in deeper feeder structures and Au ± Ag-rich, disseminated deposits within the uppermost 500 m or so. Less commonly, intermediate-sulfidation epithermal mineralization, chiefly veins, may develop on the peripheries of the lithocaps. The alteration-mineralization in the porphyry Cu

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 +-Stream sediment minerals Magnetite Clay alteration

get price

Porphyry Deposits: General characteristics and modeling

Porphyry copper deposits are typically formed in a continental arc and island arc settings along the Pacific Ring of Fire the west coast of North and South America to the Eastern portions of Asia. PORPHYRY MODEL. Porphyry Cu Systems Granitic cupola at 3-10 km depth Hydrothermal alteration & ores at 1 to >6 km depth Central high sulfide & metals Increasing low pH, high fS2 alteration upward

get price

Porphyry copper deposits SlideShare

31/07/2018 Porphyry copper deposits Epithermal deposits originate in or nearby porphyritic intrusives which were saturated by water as they intruded in shallow areas of the crust (less than 6 km depth(. The developing hydrothermal systems are characterized by the interaction, to different degrees, of fluids coming directly from the parental intrusive and from meteoric surface waters. Hydrothermal

get price

Porphyry Copper Systems1 Economic Geology GeoScienceWorld

15/04/2016 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. The systems commonly define linear belts,

get price

Coed y Brenin Porphyry-copper deposit: guided field itinerary

Leaching of copper from the deposit by groundwaters led to the formation, on the other side of the hill from here, of a 70-acre peat deposit so richly impregnated with copper that it was profitable to strip the peat, ash it in a stone kiln and sent the ashes off to Swansea for smelting. The site, known as the Turf Copper Mine, was worked in the early 19th Century. Back then, it was believed

get price