antofagasta telegrafo proven and probable reserves
The use of Conditional Simulation for Drill Hole Spacing
Antofagasta region of northern Chile (Figure 1). Successful (proven reserves). The number of drill holes to achieve both of these objectives FIG 3 Isometric view of the copper mineral zones at Telegrafo project showing the principal geological boundaries. The sulfi des zone, the oxide zone and
Copper contained in ore reserves for openpit mines is (i) the product of sulfide ore reserves and the average copper grade proven plus (ii) the product of sulfide ore reserves and the average copper grade probable plus (iii) the product of inpit leachable reserves and the average copper grade.
Marubeni Acquires 30% Equity in Chilean 2 Copper Projects
By this acquisition, Marubeni Corp will sell copper concentrate at 210,000 tonnes per year to Japanese smelters, which represents 5% in Japanese annual copper concentrate import.Antofagasta has developed Esperanza mine which is loed in the Sierra Gorda district of northern Chile. The proven and probable copper reserves are 480 million tonnes.
The term "Proven Mineral Reserve" means the economically mineable part of a Measured Mineral Resource demonstrated by at least a Preliminary Feasibility Study. This study must include adequate information on mining, processing, metallurgical, economic, and other relevant factors that demonstrate, at the time of reporting, that economic
Silver Standard Increases Pirquitas Reserves by 27% and
proven and probable reserves. The initial reserves were based on metal prices of US$5.35/ounce silver, US$2.75/lb tin and US$0.42/lb zinc, reported in a news release of April 6, 2006 and set out in a technical report dated April 28, 2006 and amended as of May 9, 2006. The updated reserves were estimated by Paul MacRae, P.Eng., a qualified
Global Wrap: Barrick, Antofagasta and more MiningNews
3 days ago · Nevada Gold Mines assets comprise 10 underground and 12 open pit mines, two autoclave facilities, two roasting facilities, four oxide mills, a flotation plant and five heap leach facilities. Nevada Gold has proven and probable reserves of 48.3Moz measured and indied resources of 27.4Moz and 7.5Moz of inferred resources.
Duluth Metals Highlights Low Copper (C1) Cash Costs and
Mineral Reserves The mine plan is based on the Mineral Reserves converted from 1.233 billion short tons of Measured + Indied Mineral Resources within the Maturi and Maturi SW deposits. The Mine Plan, including dilution, estimates total proven and probable reserves, as set out in the PFS
material and potential resources not included in reserves will become proven and probable reserves. This presentation also contains certain financial measures such as unit net cash costs per pound of copper and molybdenum which are not recognized under U.S. generally accepted accounting principles.
Barrick to Sell Half of Mine to Antofagasta for $1 Billion
Jul 30, 2015 · Barrick Gold Corp. agreed to sell a 50 percent interest in its Zaldivar copper mine in Chile to Antofagasta Plc for $1.01 billion as it moves to pay down its debt amid falling gold prices.
Sirocco Reports 57% Increase in Iodine Reserves at Aguas
Apr 02, 2013 · Iodine contained in Proven and Probable Reserves has increased by 57% to 38,412 tonnes (December 2011: 24,492 tonnes). Samples are prepared and analyzed by titration at the SGS facility in Antofagasta in compliance with industry standards. Field duplie samples are taken and blanks and standards are added to every batch submitted.
Proven and probable copper reserves? Estimated in accordance with National Instrument 43101 as required by Canadian securities regulatory authorities. Estimates are as of December 31, 2018, unless otherwise noted. Proven reserves of 126 million tonnes grading 0.461% representing 1.3
potential resources not included in reserves will become proven and probable reserves. This presentation also contains certain financial measures such as unit net cash costs per pound of copper and molybdenum, net debt and adjusted EBITDA which are not recognized under U.S. generally accepted accounting principles.
At mid 2007, Escondida had total proven and probable reserves of 34.7 million tonnes of copper, of which 22.5 million tonnes is estimated to be recoverable. Total resources (including reserves) were 57.6 million tonnes of copper, of which 33.0 million tonnes should be recovered. Exploration continues.
Iamgold Reports Increased Reserves at Rosebel Yahoo
Sep 07, 2017 · Iamgold Reports Increased Reserves at Rosebel. The increase in proven and probable gold reserves at Rosebel mine was possible thanks to new resource models implemented by the miner for all the
Yamana Gold Inc. Portfolio Producing Mines El Peñón
Gold 800,000 oz. proven & probable + 396,000 oz. measured & indied: Silver 24.8 million oz. proven & probable + 12.9 million oz. measured & indied *Please refer to Mineral Reserves & Resources for complete information relating to mineral reserves and mineral resources indiing tonnage and grade for the various mines and projects.
Escondida is a copper mine in the Atacama Desert in Antofagasta Region, Chile.The Escondida deposit is one of a cluster of porphyry coppers in an elongated area about 18 km northsouth and 3 km eastwest and is associated with the 600 km long West Fissure (Falla Oeste) system, which is in turn associated with most of the major Chilean porphyry deposits.
Sirocco Reports 57% Increase in Iodine Reserves at Aguas
Apr 02, 2013 · Sirocco Reports 57% Increase in Iodine Reserves at Aguas Blancas. Marketwire. Measured and Indied Resources are reported above a cutoff grade of 200ppm iodine and are inclusive of the reported Proven and Probable Reserves. Reserves are based on mining factors of 0% dilution and 95% mining recovery, cutoff grade of 250ppm iodine and
Probable Mineral Reserve The term " Probable Mineral Reserve " means the economically mineable part of an Indied Mineral Resource and, in some circumstances, a Measured Mineral Resource demonstrated by at least a Preliminary Feasibility Study.
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(1) Preliminary estimate of recoverable proven and probable copper reserves using a copper price of $2.00/lb 71 billion pounds net to FCX''s interest. (2) Preliminary estimate of consolidated contained copper resources using a copper price of $2.20/lb includes Kisanfu in
Antofagasta is a producing copper and gold company based in United kingdom. Antofagasta produces copper, gold, molybdenum and silver in Chile, develops copper and gold in Chile and in Pakistan, and holds various exploration projects in Australia, in Chile, in Peru and in Sweden.