Copper Porphyry

Porphyry copper deposits pcds represent shallow level intrusions 25 km in the crust. mineralization of cu ores tend to occur at the tops of porphyry systems in cupolas. possible regimes where cu may be mobilized include hydrothermal circulation at midocean ridge centers, dehydration or melting of the subducting slab, and late stage ...

Stratabound volcanogenic massive sulfide deposits formed during the proterozoic the economically important porphyry copper deposits were emplaced at the cretaceous tertiary boundary and deposits associated with detachment faults formed during the middle tertiary. copper oxides are also found in arizona in other types of deposits including ...

1 day agonbsp018332bell copper corp. reports that it has acquired through staking the big sandy project, a large, truncated porphyry coppermolybdenum prospect located in

The major products from porphyry copper deposits are copper and 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, intrusionrelated

Genesis of porphyry copper deposits the behavior of water, chloride, and copper in crystallizing melts ..... 6982 jean s. cline hydrothermal fluids and hydrothermal alteration in porphyry copper deposits .. .. ..... 8393 richard e. beane and robert 1. bodnar

Red chris is a late triassic porphyry cuaumo deposit in the stikinia islandarc terrane in northern b.c. late triassic sedimentary and volcanic rocks of the stuhini group host a series of late triassic to early jurassic 204198 ma diorite to quartz monzonite stocks and dikes.

A primary focus for bell copper is the ongoing exploration and development at the perseverance copper porphyry project near kingman, az where we are pursuing the faultedoff top of a major porphyry copper system, the bottom of which is exposed

Adjacent to the 1.47 moz au amp 535kt cu resource at copper hill porphyry aucu deposit. significant drilling intercepts include 60m at 5.4gt au and 1.83 cu hole gchc470.. exploration at belgravia is targeting the discovery of large tonnage, moderate grade 0.301.0 cu amp 0.50gt2.0gt au cuau deposit, and high grade 25gt au au 177 cu skarn deposits.

Manske, s.l., and paul, a.h., 2002, geology of a major new porphyry copper center in the superior pioneer district, arizona economic geology, v. 97, no. 2, p. 197220. read more about geology of a major new porphyry copper center in the superior pioneer district, arizona

Jul 16, 2020nbsp018332seabridge begins drilling iskut goldcopper porphyry target. newsfile corp. newsfile. july 16, 2020. reblog. share. tweet. share. strong geophysical anomalies help

Jul 18, 2020nbsp018332resource explorer starts drilling goldcopper iskut porphyry target in bc news update. source streetwise reports 71820 seabridge gold is testing for a goldcopper porphyry mineral system similar to its ksm project.

The project is located within a highly extended belt of rocks that includes the sheep mountain porphyry coppermolybdenum deposit located 9.5 kilometers to the northeast. rocks within this structurally extended belt are complexly faulted and tilted, with potential host rocks frequently covered by postmineral volcanic and sedimentary rocks.

Oct 17, 2019nbsp018332porphyry copper deposits are generally composed of a pluglike igneous intrusion a large magma body that is emplaced beneath a volcanic system. on average these deposits can have a vertical and horizontal extent of 12 km and can range from tens of millions to a billion tons in size. while copper is generally the dominant metal ...

Oct 17, 2019nbsp018332most of the worlds copper is extracted from a type of mineral deposit called a porphyry copper. if youve seen a picture of a great big openpit mining operation odds are that it was a porphyry copper deposit. some of the biggest manmade holes in the ground are porphyry copper mines bingham copper mine, utah, and chuquicamata in chile, and two of the largest.

Preface and acknowledgments this volume is dedicated to the lives and work of j. harold courtright and kenyon e. richard, gentlemen whose work in the field of porphyry copper explora173

Mineralization. porphyry copper deposits are large commonly hundreds to thousands of million tonnes and low to medium in grade 0.3 to 1.5 copper. the majority of goldrich porphyry deposits occur in the circumpacific and commonly contain 0.3 to 1.6 gt gold. the general characteristics of porphyry systems include

Feb 27, 2020nbsp018332the late triassic guichon creek batholith is a large 1800 km2, composite, zoned batholith that hosts several large porphyry cumo deposits of the highland valley copper district. the batholith consists of intrusive rocks that range in composition from gabbro to quartz monzonite. adjacent to the mafic margin of the batholith is the gump lake granodiorite to quartz monzonite stock.

Apr 30, 2020nbsp018332the yandong porphyry copper deposit is located in the southern part of the dananhutousuquan island arc belt in eastern tianshan xinjiang, nw china. the danahutousuquan belt contains a number ...

Jun 22, 2020nbsp018332according to the company, these are the first indications of a potential highgrade gold system adjacent to the porphyry target. further downhole, crystal lake also hit additional suspected offshoots of the green rock breccia, reporting 2.6 metres of 3.64 copper

Jul 16, 2020nbsp018332press release seabridge begins drilling iskut goldcopper porphyry target published july 15, 2020 at 1101 p.m. et

This report contains a revised descriptive model of porphyry copper deposits pcds, the worlds 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 ...

Porphyry copper systems richard h. sillitoe 27 west hill park, highgate village, london n6 6nd, england abstract porphyry cu systems host some of the most widely distributed mineralization types at convergent plate boundaries, including porphyry deposits centered on intrusions skarn, carbonatereplacement, and sediment

Volcanic copper deposits are called porphyry copper. web search hints porphyry copper nazca subduction global volcanism smithsonian. copper can be extracted from its ore by underground sinking a vertical shaft into the earth to an appropriate depth and driving horizontal tunnels into the ore.

Porphyry copper deposits in the district, exposed in the singatse range, are associated with granite prophyry dike swarms emanating from a deep granite cupola emplaced into an earlier quartz monzodiorite batholith. based on upb dates, the batholith and its related granite dike swarms and hydrothermal systems had a total life span of less than ...

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

The main porphyryepithermal province in australia is the siluroordovician macquarie arc in new south wales, which contains major porphyry cuau deposits at cadia global resource of 1.31 gt at 0.31 cu and 0.74 gt au cooke et al., 2007 and northparkes global resource of 153 mt at 1.03 cu and 0.46 gt au cooke et al., 2007.

A porphyry copper deposit in the andes mountains of chile is the greatest known deposit of the mineral. by the early 21st century chile had become the worlds leading producer of copper. other major producers include peru, china, and the united states.

2. photomicrographs of a, crackled alunitized and kaolinized porphyry b, alunite pseudomorph after plagioclase c, pyrite crystal with an inclusion of alunite d, altered monzonite porphyry e, sericitized porphyry of the ore zone f, rutile grains in silicate following 36 3.

Nonetheless, genesis of the copper provinces remains somewhat enigmatic and a topic of ongoing debate. a variety of depositscale geometric and geologic features and factors strongly influence the size andor grade of porphyry copper, sedimenthosted stratiform copper, andor iocg deposits.

The diatreme contained abundant fragments of vein material indicative of the potassic core to a goldcopper porphyry system. at ksm, testing this pattern of magnetic and resistivity anomalies led directly to the discovery of the deep kerr zone caveconstrained inferred resource of 1.9 billion tonnes at 0.31gt au and 0.41 cu.