wits gold largest told deposit

  • Largest Gold Deposits in the World Witwatersrand Gold Fields
    IntroductionFormation and MineralizationMining TechniquesGlobal AnaloguesFurther ReadingThe gold fields of the Witwatersrand Basin in South Africa are, by a landslide, the largest single gold producing district in the world. It has produced some 2 billion ounces over a century of mining and at an average grade of 15 g/t Au with a current head grade of 6-10 g/t Au and they still have estimated reserves of some 1,161 billion ounces (36,000 tonnes). Production does not come easy though. ShSee more on geologyforinvestors
  • Witwatersrand Wikipedia
    OverviewGeologyConsequences of mining the ancient Witwatersrand rocksHistorySee alsoFurther readingExternal links

    The Witwatersrand plateau consists of a 5000-to-7000-metre-thick (3.1–4.3 mi) layer of mainly sedimentary rocks laid down over a period of about 260 million years, starting approximately 2.97 billion years ago. The entire series of rocks, known as the "Witwatersrand Supergroup," consists of very hard erosion resistant quartzites, banded ironstones and some marine lava deposits, interspersed with softer, more easily eroded tillites, mudstones and conglomerates. The oldest rocks (laid down 2.97 billion years ago) form the northern scarp of the Witwatersrand pl

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    The Witwatersrand plateau consists of a 5000-to-7000-metre-thick (3.1–4.3 mi) layer of mainly sedimentary rocks laid down over a period of about 260 million years, starting approximately 2.97 billion years ago. The entire series of rocks, known as the "Witwatersrand Supergroup," consists of very hard erosion resistant quartzites, banded ironstones and some marine lava deposits, interspersed with softer, more easily eroded tillites, mudstones and conglomerates. The oldest rocks (laid down 2.97 billion years ago) form the northern scarp of the Witwatersrand plateau; the youngest (laid down 2.71 billion years ago) are those that form the southern edge of the plateau. Gold is found in the conglomerate strata of the younger members of the Supergroup, locally referred to as banket. The abundance of this gold is without equal anywhere else in the world. Over 50000 tonnes (55000 short tons) have been mined from these rocks since this precious metal was first discovered here in 1886. This accounts for approximately 50% of all the gold ever mined on earth. Not all the conglomerates contain gold, and of those that do (known as “reefs” by the miners), the gold is not uniformly distributed throughout the layer, but tends to occur in streaks, where the pebbles that make up the conglomerate are larger than elsewhere. Here the gold is associated with other minerals, especially iron pyrite and uraninite, as well as carbon rich materials such as kerogen, or bitumen, which occurs in small balls less than 1 mm (0.04 in) in size, called “flyspeck carbon”, or as continuous layers about 10–20 mm (0.4–0.8 in) thick. The gold-bearing conglomerates occur chiefly in the upper, younger layers of the Witwatersrand Supergroup of rocks, on the southern side of the Witwatersrand plateau.

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  • 5 Largest Development-Stage Gold Deposits Seeking Alpha

    Oct 30, 2012· The five largest development-stage gold deposits with feasibility studies in place and permitting underway are Donlin Gold, Detour Lake, Metates, Livengood and Rosia Montana.

  • Author: Markus Aarnio
  • Ore deposits: Witwatersrand Gold Deposits [Part 8] YouTube

    Nov 04, 2014· Ore deposit is a natural concentration of one or more minerals within the host rock. Subscribe: https://bit.ly/2xcAZYW About World Earthquakes: World Earthquakes is a non-profit, non

  • Author: WORLDETHQ
  • Where Are the Largest Gold Deposits Found? (with pictures)

    Mar 30, 2020· The other largest gold deposits are prized sometimes for the sheer amount of gold they produce, sometimes for the value of the gold they produce, and often for both reasons. The following areas include some of the biggest and most valued gold deposits: Muruntau, Grasberg, Natalka, Olympic Dam, Sukhoi, and the Sierra Nevada.

  • The formation of gold deposits in South Africa

    Apr 20, 2017· In 1852, the English prospector J.H. Davis discovered the first gold in the Witwatersrand, leading to the South African gold rush and the discovery of much more gold deposits within the basin.

  • WITS GOLD ShareData

    WITS GOLD ANNUAL REPORT 2007 Wits Gold is a South African gold and uranium exploration company with one of the largest gold and uranium resources available to a single company.The Company is listed on the JSE Limited under the symbol WGR and also has a Level 1 American Depositary Receipt (ADR) programme backed by the Bank of New York.The Wits

  • Gold Deposit Classification: List of 10 Types of Gold Deposits

    Metallurgical ContentGold Deposit Class #1Gold Deposit Class #2Gold Deposit Class #3Gold Deposit Class #4Gold Deposit Class #5Gold Deposit Class #6Gold Deposit Class #7Gold Deposit Class #8Gold Deposit Class #9Gold “Deposit” Class #10 Gold/Auriferous Deposits can be classified into types for which here is a List of 10 Types of Gold Deposits: Auriferous

  • Witwatersrand Gold Rush Wikipedia
    OverviewOriginsDiscoveryFounding of JohannesburgSecond Boer WarPrimary sourcesSee alsoNotes

    There had always been rumours of a modern-day "El Dorado" in the folklore of the native tribes that roamed the plains of the South African highveld and in that of the gold miners who had come from all over the world to seek out their fortunes on the alluvial mines of Barberton and Pilgrim's Rest, in what is now known as the province of Mpumalanga. But it was not until 1886 that the massive wealth of the Witwatersrand would be uncovered. Scientific studies have pointed to the fact that the "Golden Arc" which stretches from

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    There had always been rumours of a modern-day "El Dorado" in the folklore of the native tribes that roamed the plains of the South African highveld and in that of the gold miners who had come from all over the world to seek out their fortunes on the alluvial mines of Barberton and Pilgrim's Rest, in what is now known as the province of Mpumalanga. But it was not until 1886 that the massive wealth of the Witwatersrand would be uncovered. Scientific studies have pointed to the fact that the "Golden Arc" which stretches from Johannesburg to Welkom was once a massive inland lake, and that silt and gold deposits from alluvial gold settled in the area to form the gold-rich deposits that South Africa is famous for.

    Wikipedia · Text under CC-BY-SA license
  • Quartz-Pebble-Conglomerate Gold Deposits

    Quartz-pebble-conglomerate gold deposits represent the largest repository of gold on Earth, largely due to the depos-its of the Witwatersrand Basin, which account for nearly 40 percent of the total gold produced throughout Earth’s history. This deposit type has had a controversial history in regards to genetic models.

  • Author: Ryan D. Taylor, Eric D. Anderson
  • Quartz-Pebble-Conglomerate Gold Deposits

    Quartz-pebble-conglomerate gold deposits represent the largest repository of gold on Earth, largely due to the depos-its of the Witwatersrand Basin, which account for nearly 40 percent of the total gold produced throughout Earth’s history. This deposit type has had a

  • INTERACTIVE MAP: World's top 10 gold deposits MINING.COM

    Apr 04, 2017· The latest press release I could find (22 Feb 2017) estimates 930.3 mt of ore, grading 2.1 g/t gold for 62.8 moz of contained gold under the Russian Resource Estimation Standard or

  • The formation of gold deposits in South Africa

    Apr 20, 2017· In 1852, the English prospector J.H. Davis discovered the first gold in the Witwatersrand, leading to the South African gold rush and the discovery of much more gold deposits within the basin.

  • Relation to Archean Witwatersrand Gold and Uranium Ore

    Feb 12, 2020· The total amount of gold extracted from Vredefort sites is estimated at no more than some 130 kg a trivial amount in comparison to the gold production from the entire Witwatersrand Basin. In conclusion, the Vredefort impact event at 2.02 Ga secured one of the world's largest ore deposits, namely the Witwatersrand gold and uranium province.

  • Deposits related to clastic sedimentation Gold Deposits

    Types of Gold Deposits 3. Alluvial placers The most common type of placer deposit. Gold that has been deposited through the action of water. Often called ''stream placers'' but applies to any situation where running water has deposited the gold (or other heavy minerals). 4. Eolian placers Winds carry away surface sand and dust in a process

  • Top ten biggest gold mines in the world Mining Technology

    Jan 30, 2020· South Deep gold mine is the largest gold mine in the world, by reserves. Located 45km south-west of Johannesburg in the Witwatersrand Basin, South Africa, South Deep is also the seventh deepest mine in the world, with a mine depth up to 2,998m below the surface. The managed mineral reserve at South Deep as of December 2018 stood at 32.8Moz.

  • Top 50 Countries with Largest Gold Reserves

    Below is a list of the top 50 countries with the largest gold reserves as of January 30, 2018. The largest holders of gold are the central banks, international organizations and governments. The United States has the largest gold reserves in the world. Germany and China hold the largest gold reserves in Europe and Asia, respectively.

  • Top 10 Countries With The Largest Gold Reserves Forbes

    May 26, 2016· Tonnes: 557.7 Percent of foreign reserves: 6.3 percent It’s no surprise that the Bank of India has one of the largest stores of gold in the world. The South Asian country, home to 1.25 billion

  • What is a gold deposit scheme? How do banks earn profit

    1) What is Gold Deposit Scheme Gold Deposit Scheme (GDS) is in the nature of a fixed deposit in gold. The customers can deposit their idle gold under GDS which will provide them safety, interest earnings, tax benefits and a lot more. How does t...

  • World's 10 Largest Gold Mines by Production INN

    Below is an overview of the 10 largest gold mines in the world, based on 2018 production figures from the GFMS team at Thomson Reuters and on production stats released by each gold producer.

  • Geology of the Tungsten, Antimony and Gold Deposits

    The deposits of tungsten, antimony, silver, and gold described in this report occur in an area about a mile wide and 3% miles long near the town of Stibnite, Valley County, Idaho. Ore has been mined from only two deposits in the area, the Yellow Pine and Meadow Creek mines of the Bradley Mining Co. The Yellow Pine mine was the largest source of

  • - Where are the Largest Gold Deposits? U.S. Gold Bureau

    Where are the Largest Gold Deposits in the World? Witwatersrand Witwatersrand, which means “the ridge of white waters” in Afrikaans, is the most famous and the largest of all the gold deposits in the world, and for good reason. Out of all the gold mined in the world in all of history, a full forty percent of it has come from Witwatersrand.

  • World Gold Deposits AMNH

    However, the current cost of extracting it is more than the gold is worth. World's Largest Deposits of Gold. The massive deposits of the Witwatersrand mines in South Africa have produced more than 40 percent of the world's total production of gold. The origin of these ancient ores--several billion years old-

  • States With Gold : Where Are Gold Mines In The United States?

    Gold nugget found in the field. Credit: University of Adelaide Gold Mines In The United States. Since the discovery of gold at the Reed farm in North Carolina in 1799, gold mining in the United States has continued. The first documented occurrence of gold occurred in Virginia in 1782.

  • Geology of the Tungsten, Antimony and Gold Deposits

    The deposits of tungsten, antimony, silver, and gold described in this report occur in an area about a mile wide and 3% miles long near the town of Stibnite, Valley County, Idaho. Ore has been mined from only two deposits in the area, the Yellow Pine and Meadow Creek mines of the Bradley Mining Co. The Yellow Pine mine was the largest source of

  • Wits Gold Fields research collaboration goes deep

    Jul 03, 2019· Mining students at Wits University, with the support of Gold Fields, are building South Africa’s capacity to apply mechanised mining methods and supporting technologies in deep-level gold mines. In a three-year partnership, supported by a R6-million Gold Fields grant in 2017, a range of research projects are underway at both post-graduate and

  • The 5 Top-Producing Gold Mines in the World The Motley Fool

    One of Barrick Gold's core mines, Cortez has proven-and-probable gold reserves of 10.2 million ounces as of December 31, 2016. Presumably, Cortez will stay among the largest producing gold mines

  • Relation to Archean Witwatersrand Gold and Uranium Ore

    Feb 12, 2020· The total amount of gold extracted from Vredefort sites is estimated at no more than some 130 kg a trivial amount in comparison to the gold production from the entire Witwatersrand Basin. In conclusion, the Vredefort impact event at 2.02 Ga secured one of the world's largest ore deposits, namely the Witwatersrand gold and uranium province.

  • Top 10 largest gold mines Mining Global Mining News

    Oct 10, 2017· The fourth largest gold mine in the world by deposit size, with approximately 50mn ounces of gold, Muruntau is also the biggest open-pit gold mine in the world. This sizeable mine is owned by the government of Uzbekistan. After the gigantic gold deposit was discovered in 1958, systematic mining began in 1967 and has been ongoing since.

  • World's top 10 rookie gold mines MINING.COM

    World’s top 10 rookie gold mines According to GFMS 2013 Gold Survey, the largest increase in cash cost for the top gold miners in the world in the last years was due to the decline in gold

  • Gold X Mining Fast Track to Production Decision

    May 05, 2020· Following recent changes to the Management of the Company and acquisition of 100% of its flagship Toroparu asset, Gold X Mining is now focused on

  • Top ten biggest gold mines in the world Mining Technology

    Jan 30, 2020· South Deep gold mine is the largest gold mine in the world, by reserves. Located 45km south-west of Johannesburg in the Witwatersrand Basin, South Africa, South Deep is also the seventh deepest mine in the world, with a mine depth up to 2,998m below the surface. The managed mineral reserve at South Deep as of December 2018 stood at 32.8Moz.

  • “World’s largest untapped gold deposit” Moneyweb

    Apr 09, 2010· Kibali is described by AngloGold Ashanti as simply “the world’s largest untapped gold deposit”. This process is known as “privatisation” and is, apparently, absolute poison to the ANCYL.

  • Top 10 Countries With The Largest Gold Reserves Forbes

    May 26, 2016· Tonnes: 557.7 Percent of foreign reserves: 6.3 percent It’s no surprise that the Bank of India has one of the largest stores of gold in the world. The South Asian country, home to 1.25 billion

  • Gold Minerals Council South Africa

    The Witwatersrand gold-producing area in South Africa is underlain by an underground geological formation also known as the Witwatersrand Basin. It lies on the Kaapvaal Craton, and is one of the world’s largest gold placer deposits. This elliptical basin stretches over an arc of roughly 400km traversing across the Free State, North West and

  • World Gold Deposits AMNH

    However, the current cost of extracting it is more than the gold is worth. World's Largest Deposits of Gold. The massive deposits of the Witwatersrand mines in South Africa have produced more than 40 percent of the world's total production of gold. The origin of these ancient ores--several billion years old-

  • Top 10 Countries With Largest Gold Reserves

    Jul 05, 2018· Below are the top 10 countries with the largest gold holdings, beginning with India. 10. India. Tonnes: 560.3 Percent of foreign reserves: 5.5% It’s no

  • - Where are the Largest Gold Deposits? U.S. Gold Bureau

    Where are the Largest Gold Deposits in the World? Witwatersrand Witwatersrand, which means “the ridge of white waters” in Afrikaans, is the most famous and the largest of all the gold deposits in the world, and for good reason. Out of all the gold mined in the world in all of history, a full forty percent of it has come from Witwatersrand.