﻿ deposit with maximum percentage of copper in ore
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## deposit with maximum percentage of copper in ore

##### Learning Goals: -What is an ore deposit?

Copper grade is the concentration of copper in the ore rock. To calculate the grade of copper for the sample, geologists use the equation: (amount of copper metal/amount of copper ore rock)*100 2. If a deposit area has 200lbs of copper in 10,000lbs of ore rock, what is the grade? 200/10000*100=2% 3. If a deposit area has 6 tons of copper in ...

##### 3.2.6: Maximum Allowable Stripping Ratio (SRmax) ABC 123 ...

Imagine a copper deposit in which the average copper grade for a strip is 1.05%. Checking the g-SR plot for that deposit, suppose we find out that the SR max for g ¯ = 1.05 is equal to 8.5. This means that 8.5 units of waste can be economically removed per unit of ore.

##### 20.1 Metal Deposits – Physical Geology

Sep 01, 2015  Looking at copper, for example, we can see that while average rock has around 40 ppm (parts per million) of copper, a grade of around 10,000 ppm or 1% is necessary to make a viable copper deposit. In other words, copper ore has about 250 times as much copper as typical rock.

##### BotEC: Percentage of Copper in Ore

Oct 25, 2021  The copper ore forms only 0.7% of the rock. We need to find a number that we can multiply by .007 to get 90 kg. Dividing 90 kg by .007 will give us that number—approximately 12,860 kg. Multiplying that number by 2.2 pounds/kg would give us the number of pounds (about 28,300 pounds). Dividing by 2000 pounds/ton would give us the number of tons ...

##### SEDIMENT-HOSTED CU DEPOSITS (MODEL 30b; Cox, 1986)

--Estimated median and maximum ore tonnages (reserves plus production) and copper grades of each sediment-hosted copper model type Model Number of Median size Copper grade Maximum size Grade of maxi-deposits in (tonnes X 10 6) (percent) (tonnes x 106) mum-tonnage model deposit (percent) Reduced (RF)1 43 32 2.3 2,6002 >22

##### How much metal does the ore contain? - World Ocean Review

The metal recovered is described as “refined copper”. Mineral ores, therefore, are made up of a combination of different substances and contain only a certain amount of metal. In most cases copper ores contain between 0.6 and 1 per cent of copper. Consequently one tonne of ore generates a maximum 6 to 10 kilograms of copper.

##### How much copper has been found in the world? - USGS

To date, roughly 700 million metric tons of copper have been produced around the world. This would fit into a cube measuring about 430 meters on a side. Identified deposits contain an estimated 2.1 billion metric tons of additional copper, which brings the total amount of discovered copper to

##### Copper Facts

Copper Fact 3. Known land-based resources of copper are estimated to be 1.6 billion metric tons of copper (USGS, 2004). United States copper production largely comes from deposits in Arizona, Utah, New Mexico, Nevada and Montana. Twenty mines account for about 99% of production. Copper Fact 4. Copper is element number 29 on the Periodic Table ...

##### Geology of Some Copper Deposits in North Carolina

1-2 percent combined copper and zinc). Ore shipped during 1943 and 1944 car.ried a little more than 400,000 pounds of copper. More than a third of this was enriched supergene ore that averaged about 12.5 percent copper; most of the hypogene ore contained 4-5 percent copper and several percent zinc. The Toncrae deposit is a tabular body of ...

##### How much metal does the ore contain? - World Ocean Review

The metal recovered is described as “refined copper”. Mineral ores, therefore, are made up of a combination of different substances and contain only a certain amount of metal. In most cases copper ores contain between 0.6 and 1 per cent of copper. Consequently one tonne of ore generates a maximum 6 to 10 kilograms of copper.

##### Wyoming State Geological Survey

This significant deposit with accessory gold and some silver was developed in a sheared metaconglomerate. The mine produced an estimated 21 million pounds of copper with some byproduct gold and silver. A 1988 estimate of unmined ore included 928,500 tons of 6.5 percent copper containing 116,800 ounces of gold.

##### Mineralogy of Copper Sulfides in Porphyry Copper and ...

Porphyry copper deposits represent one of the largest copper reserves on Earth. They typically contain large, low-grade reserves of primary ore and higher-grade, supergene enrichment blankets of

##### Mineral Deposit Value - How to Calculate the Potential ...

As you can see in the example above, the deposit does not have to be enormous in size (only 500 meters long by 100 meters wide) to contain a valuable deposit (approximately \$6 billion worth of minerals). However, in order to be as realistic as possible about this valuation, you can not assume that the complete ore body contains the same grade (i.e. 2% copper and 1.5 gram per tonne gold).

##### List of copper ores - Wikipedia

55.1. Cuprite. Cu 2 O. 88.8. Chrysocolla. (Cu,Al) 2 H 2 Si 2 O 5 (OH) 4 n (H 2 O) 37.9. Tennantite. Cu 12 As 4 S 13.

##### Copper mining in the United States - Wikipedia

The open-pit mining of porphyry copper deposits was adopted worldwide. In the 1910s and 1920s, copper mills adopted the froth flotation method, which had been developed in Australia. Whereas the old gravity methods of concentration, using jigs and Wilfley tables recovered 60 to 80 percent of the copper in the ore

##### The World's 20 Largest Copper Mines - ThoughtCo

Nov 25, 2019  The world's 20 largest copper mines produce nearly 9 million metric tons of the precious metal a year, about 40% of the world's total copper mine capacity. Chile and Peru, alone, account for more than half of the copper mines on this list. The U.S. makes the cut, as well, with two mines among the top 20. Copper is expensive to mine and refine.

##### Copper Deposit Islands Wiki Fandom

A copper deposit is a block found on naturally spawning resource islands. Copper deposits naturally generate in copper resource islands, with each having one of them. Players can only have up to two unmined copper deposits at a time, but players may have up to three for unknown reasons since the September 25, 2021 update. If a copper deposit is broken, a new copper resource island will spawn ...

##### The world’s highest grade gold mines - MINING.COM

Jul 16, 2015  1. With 44.1 g/t of gold in reserves, Fire Creek mine, owned by Klondex Mines and located in Nevada, United States, is believed to be the highest grade underground gold mine in the world. 2 ...

##### Uses of Copper Supply, Demand, Production, Resources

Porphyry copper deposits account for about 60 percent of the world's copper. In porphyry copper deposits, copper ore minerals are disseminated in igneous intrusions. Sediment-hosted stratabound copper deposits, in which copper is concentrated in layers in sedimentary rocks, account for about 20 percent of the world's identified copper resources.

##### 3 Technologies in Exploration, Mining, and Processing ...

The deposits contained nearly 4.5 million tons of 13 percent copper and 65 grams of silver per ton, some of the highest grade deposits ever mined (Bateman, 1942). The ore at Kennecott contained an amount of copper equivalent to a 100-million-ton typical porphyry copper deposit, which is currently one of the primary types of copper deposits ...

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

Oct 01, 2002  Cu/Au atomic ratios of porphyry copper ore deposits form a continuous range from about 5000 to 5,000,000 with a median near 40,000, which separates gold-rich and gold-poor deposits. Gold is found in porphyry copper deposits in solid solution in Cu–Fe and Cu sulfides and as small grains of native gold, usually along boundaries of bornite.

##### Porphyry copper deposits of the world

Feb 12, 2021  Listing of other deposits by type that are between 5 and 10 km of the subject deposit. Each deposit type is coded as the deposit-type number and deposit type as listed in USGS Bulletins 1693 (Cox and Singer, 1986) and 2004 (Bliss, 1992). Textual values of no more than 37 characters.

##### The world’s top 10 highest-grade copper mines - MINING.COM

Feb 20, 2017  First Quantum’s CLC copper deposit is exceptionally rich, and with ore reserves grading 5% copper it is believed to be the highest-grade open-pit active copper mine worldwide.

##### BotEC: Percentage of Copper in Ore

Oct 25, 2021  The copper ore forms only 0.7% of the rock. We need to find a number that we can multiply by .007 to get 90 kg. Dividing 90 kg by .007 will give us that number—approximately 12,860 kg. Multiplying that number by 2.2 pounds/kg would give us the number of pounds (about 28,300 pounds). Dividing by 2000 pounds/ton would give us the number of tons ...

##### Some observations on copper yields and ore grades ...

Mar 01, 2012  To test that hypothesis Fig. 8 relates percentage copper content to the tonnage of ore for 423 porphyry copper deposits. There is no correlation in this much larger sample of deposits from the USGS database. Download : Download full-size image; Fig. 8. Percentage copper content and deposit size for porphyry coppers.

##### Uses of Copper Supply, Demand, Production, Resources

Porphyry copper deposits account for about 60 percent of the world's copper. In porphyry copper deposits, copper ore minerals are disseminated in igneous intrusions. Sediment-hosted stratabound copper deposits, in which copper is concentrated in layers in sedimentary rocks, account for about 20 percent of the world's identified copper resources.

##### The ten highest-grade copper mines in the world

Feb 01, 2019  Thanks to innovative technology at the mine, copper cathode produced at the mine is very pure. According to FQM, copper cathode produced at Las Cruces reaches a maximum quality of 99.9% copper. Sudbury, Canada; The mine with the highest grade of copper in the world is Sudbury (also known as Victoria) in Canada, where the grade of ore is nearly 8%.

##### Introduction to Spectroscopy: Analysis of Copper Ore

Earth’s surface. Prospecting for copper then was relatively simple. Recently, increased demand for copper resulted in numerous mines, and the search for copper ore is now very competitive. When a copper deposit is discovered, drilling is undertaken to determine the size and grade (concentration) of copper at the potential mining site.

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

Oct 01, 2002  Cu/Au atomic ratios of porphyry copper ore deposits form a continuous range from about 5000 to 5,000,000 with a median near 40,000, which separates gold-rich and gold-poor deposits. Gold is found in porphyry copper deposits in solid solution in Cu–Fe and Cu sulfides and as small grains of native gold, usually along boundaries of bornite.

##### Preliminary Model of Porphyry Copper Deposits

Copper skarn deposits occur near many porphyry copper host intru- sions that intruded carbonate-bearing units (Einaudi and others, 1981), and skarn mineral zoning patterns may be useful in the targeting of a potentially associated porphyry copper deposit (Meinert and others, 2005).

##### The world’s highest grade gold mines - MINING.COM

Jul 16, 2015  1. With 44.1 g/t of gold in reserves, Fire Creek mine, owned by Klondex Mines and located in Nevada, United States, is believed to be the highest grade underground gold mine in the world. 2 ...

##### King Copper AZGS

A third copper source includes copper of breccia pipes of the Breccia Pipe Province of northern Arizona. Porphyry Copper Deposits. Most of the copper mined in Arizona comes from porphyry copper deposits. These are copper ore deposits associated with intrusive igneous rocks similar to granite.

##### Copper Facts

Copper Fact 3. Known land-based resources of copper are estimated to be 1.6 billion metric tons of copper (USGS, 2004). United States copper production largely comes from deposits in Arizona, Utah, New Mexico, Nevada and Montana. Twenty mines account for about 99% of production. Copper Fact 4. Copper is element number 29 on the Periodic Table ...

##### Morenci Mine (MRDS #10282444) CU

During 2006, Morenci mined 247 Million tons of ore, milled 4.1 Million tons grading 0.56% Cu, placed 230.70 Million tons of ore onto leach pads, recovered 14,993 tons copper in concentrate and electrowon 355,574 tons of copper cathode.