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ML Series Vertical Shaft Impact Crusher

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MS Series Triaxial Horizontal Screen

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MGD Series Vibrating Feeder

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Witwatersrand gold

  • 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 worlds largest gold placer deposits.

  • Johannesburg Egoli-Goud Witwatersrand ONAFHANKLIK

    Mar 30, 2021· Johannesburg was established in 1886 following the discovery of gold on a farm. It was established as a small village controlled by a Health Committee in 1886 with the discovery of an outcrop of a gold reef on the farm Langlaagte. Due to the extremely large gold deposit found along the Witwatersrand. *

  • PS #1. Witwatersrand style gold targets? Shaw 220km

    Dec 10, 2017· Witwatersrand style gold! This paper is the first in a series that will document the Shaw giant ring structure (GRS) in the East Pilbara Craton as observed in geoscientific data. The Shaw giant ring structure centre is located at 22˚ 10S and 118˚55E, about 200km south of Port Hedland and 150km NNW of Newman near Shaw siding in the

  • The source of Witwatersrand gold: evidence from uraninite

    An in-situ LA-ICP-MS study of different generations of uraninite from the Mesoarchaean Witwatersrand gold palaeoplacer deposits revealed unusually high Au concentrations in rounded, detrital uraninite grains but no detectable Au in secondary, hydrothermally mobilised uraninite. A Au-enriched uraninite-bearing magmatic host is suggested as a significant source for detrital gold in the

  • The Sources of Witwatersrand Gold and Uranium: A Continued

    The Witwatersrand basin hosts the most productive gold fields yet mined anywhere in the world. From 1886 to the end of 1987, a total of 41,700 metric tons (1.340 billion oz) of gold and 146,000 metric tons of uranium oxide was recovered from mineralized quartz-pebble conglomerates, quartzites, and thin layers of kerogen deposited between 2750 and 3100 Ma on braid deltas and braid plains

  • Witwatersrand Gold Rush - Victoria 2 Wiki

    May 16, 2020· Witwatersrand Gold Rush is an event that will happen to any great power bordering a nation owning the province of Witwatersrand (ID 2106), when gold is discovered there. The province is initially owned by Transvaal, and the nations

  • Witwatersrand Gold Rush The Famous South African Gold Mine

    The Witwatersrand Gold Rush initiated South Africas domination of world gold production. Although legends of a South African El Dorado existed among the natives of the area, it was not until 1886, when a poor Australian prospector named George Harrison staked the first claim, that the vast riches of the Rand were discovered.

  • Witwatersrand Encyclopedia

    Witwatersrand (Rand) Series of parallel mountain ranges more than 1500m (5000ft) high, forming a watershed between the Vaal and Olifant rivers, in former Transvaal, ne South Africa.The region extends c.100km (62mi) e and w of Johannesburg.Gold was first discovered in 1884 and mining began two years later. Witwatersrand still produces c.30% of the world's total output of gold.

  • The impact of gold mining on the Witwatersrand on the

    Jun 15, 2012· The prospectors Fred and Harry Struben made the first discovery of gold-bearing Witwatersrand Supergroup rocks in January 1884 on the farm Sterkfontein near Kromdraai. They discovered gold-bearing conglomerates on the farm Groot Paardekraal, to the south of Sterkfontein, in

  • (PDF) A Review of the Witwatersrand Basin - The Worlds

    Jun 01, 2016· Although the Witwatersrand is a mature goldfield with declining production, it is estimated that it still contains six times more gold than the world's second largest goldfield.

  • Witwatersrand Basin Hartbeespoort, South Africa - Atlas

    Aug 02, 2017· South Africa is famous for its rich deposits of gold, the vast majority of which come from the Witwatersrand Basin, an underground geological

  • Archaean atmospheric evolution: evidence from the

    Apr 01, 2005· The Witwatersrand gold fields in South Africa, the world's largest gold-producing province, play a pivotal role in the reconstruction of the Archaean atmosphere and hydrosphere. Past uncertainties on the genetic model for the gold caused confusion in the debate on Archaean palaeoenvironmental conditions. The majority of Witwatersrand gold

  • Pilbara's gold rush: a complete guide to the main players

    Oct 16, 2017· Witwatersrand holds the worlds largest known gold reserves and has already produced more than 1.5 billion ounces of the yellow metal which is

  • Witwatersrand Gold Rush - Infogalactic: the planetary

    The Witwatersrand Gold Rush was a gold rush in 1886 that led to the establishment of Johannesburg, South Africa. It was part of the Mineral Revolution.

  • Witwatersrand Nigel Gold Mine Near Springs, South Africa

    The Witwatersrand Nigel Gold Mine is near Springs, South Africa. The Witwatersrand Nigel Gold Mine is a underground mining operation. Initial production took place in 1940 and overall output was considered to be medium size. Mine operations consist of 2 distinct underground workings.

  • Witwatersrand Basin (RSA) - Universität Klagenfurt

    The average recovery grade of the Witwatersrand gold mines has declined from 13,28 grammes/tonne in 1970 to 5,3 grammes/tonne in 1991. 2 Minerals: Over 100 mineral species have been reported from the gold-bearing reefs. Most of the minerals are esoteric and visible only under the microscope and seldom form larger collector specimens.

  • Witwatersrand Gold Fields: Geology, Genesis, and

    Jan 01, 2000· Gold has been produced from seven major gold fields located around the northern and western margin of the 350-km-long Witwatersrand basin. Each gold field consists of one major and commonly several minor reef horizons that have been mined semicontinuously for up to 400 km2.

  • Discovery of the Gold in 1884 South African History Online

    The first recorded discovery of gold on the Witwatersrand was made by Jan Gerrit Bantjes in June 1884, on the farm Vogelstruisfontein, and was followed soon thereafter, in September, by the Struben brothers who uncovered the Confidence Reef on the farm Wilgespruit, near present-day Roodepoort.

  • Witwatersrand gold: discovery matters: Applied Earth

    AbstractDescriptions of the Witwatersrand goldfields have invoked superlatives around themes including great wealth, huge depths, giant mines and innovative engineering. After its discovery in 1886 and further discoveries in the 1930s and 1940s, the Witwatersrand dominated world gold peaking at 1000 t Au production in 1970. There has been a steady production decline since 1970, and, although

  • (PDF) A Review of the Witwatersrand Basin - The Worlds

    Although the Witwatersrand is a mature goldfield with declining production, it is estimated that it still contains six times more gold than the world's second largest goldfield.

  • Did You Know South Africa Owns Largest Gold Producing

    Jul 15, 2020· With Witwatersrand in South Africa being the largest single gold producing land in the world, South Africa has been confirmed to produce about half of the worlds gold. Before the discovery of the land, a lot of research and speculations existed till it

  • South African War Definition, Causes, History, & Facts

    It was the largest gold-mining complex in the world at a time when the worlds monetary systems, preeminently the British, were increasingly dependent upon gold. Although there were many Uitlanders (foreigners; i.e., non-Dutch/Boer and in this case primarily British) working in the Witwatersrand gold-mining industry, the complex itself was

  • (PDF) Detrital origin of hydrothermal Witwatersrand gold-a

    Gold, pyrite and uraninite grain chemistryIndividual gold particles in the Witwatersrand`basin', irrespective of their morphology and textural framework, are homogenous with respect to the distribution of Ag and Hg. This is consistent with diffusion models for these elements through gold

  • Witwatersrand, South Africa Tourist Information

    The Witwatersrand is in the Transvaal, formerly an independent state settled by the Boers after the Great Trek. J. H. Davis, an Englishman, was reported to have found gold "in considerable quantities" in July 1852 at Paardekraal near Krugersdorp, which was the earliest discovery on the Rand.The subsequent discovery of other rich and profitable

  • Witwatersrand mountain ridge, South Africa Britannica

    Witwatersrand, also called The Rand, ridge of gold-bearing rock mostly in Gauteng province, South Africa. Its name means Ridge of White Waters. The highland, which forms the watershed between the Vaal and Limpopo rivers, is about 62 miles (100 km) long and 23 miles (37 km) wide; its average elevation is about 5,600 feet (1,700 metres).

  • What was the Witwatersrand Gold Rush? - Quora

    The main disclosure of gold in the area is recorded as being in 1852 in the Pardekraal ranch by J.H. Davis, an English excavator. He sold £600 of gold to the Transvaal Treasury and was in this way requested to leave the nation. Another find by Pie

  • Witwatersrand Basin Project WEST WITS MINING

    The Witwatersrand Basin Project (WBP) comprises two historic mining centres on the Northern Edge of the Witwatersrand Basin in the Central Rand Goldfield immediately southwest of the city of Johannesburg. Mining has been taking place within the WBP

  • A paper on the origins of the original Witwatersrand Gold

    Mar 01, 2018· When the Struben brothers, Fred and Harry, began prospecting the Witwatersrand ridge around 1883-4, they found gold in small quantities in the streams and quartzes. When Fred Struben discovered the Confidence Reef, he states in his diary I was

  • The Witwatersrand Basin and Its Gold Deposits SpringerLink

    Feb 21, 2019· The source of the huge amount of gold in the Witwatersrand is thought to be the entire greenstone-dominated Archaean cratonic surface, which was subjected to intensive chemical weathering permitting large-scale leaching of gold by contemporaneous surface waters.


    Witwatersrand gold-bearing reefs, and to present an objective and balanced overview of theories on the formation of the gold ores. He classified the ore genetic theories into three types: (1) (Modified) Placer Model - where the gold was of placer origin, being derived by erosion from

  • The Worlds 10 Most Prolific Gold Fields CMI Gold & Silver

    The head frame of the Tau Tona Mine is the lone entrance to over 500 miles of tunnels. Located in South Africa, the Witwatersrand Basin represents the richest gold field ever discovered. It is estimated the 40% of all of the gold ever mined has come out of the Basin.

  • The viability of using the Witwatersrand gold mine

    The Witwatersrand Basin is the heart of South Africaa gold mining industry. The cluster of gold mines located in the Witwatersrand Basin generates a significant amount of mine tailings, which have adverse effects on the environment and ecological systems. In addition, disposal costs are very high.

  • Structural controls on Witwatersrand gold mineralisation

    Abstract Structural controls on the distribution of gold in the Witwatersrand Basin can be seen at scales ranging from that of thin sections up to regional seismic data sets. At the thin section scale, gold occurs largely in fractures with hydrocarbons. These fractures are associated with pulses of thrusting deformation that occurred in the latter stages of the basin's development.

  • Quartz-Pebble-Conglomerate Gold Deposits

    Because the gold ore in the Witwatersrand Basin is located in ore reefs, these deposits have also been coined quartz-pebble reef deposits. The almond shape of the quartz pebbles has also led these deposits to be referred to as banket-type (in Dutch, banket refers to a type of almond pastry). More

  • (PDF) Metamorphism of the Witwatersrand gold fields: A review

    Over the past decade alone, five review papers on the genesis of the Witwatersrand gold have been published (Pretorius, 1991;Robb and Meyer, 1995;Frimmel, 1997b;Robb and Robb, 1998; Phillips and

  • Witwatersrand Gold Ltd. - TSX:WGR - WGR.TO >>

    Company summary with corporate and market information for Witwatersrand Gold Ltd. (WGR.TO). Featuring company news, user comments, press releases, price quotes, % change, trading volume, business address and detailed description.

  • Witwatersrand gold deposits formed by volcanic rain

    The Witwatersrand gold deposit is the largest in the world. Thermodynamic calculations show that such rich accumulations of gold could be linked to abundant volcanism, primitive life and the

  • Witwatersrand Gold Mining, Gauteng Map & Directions - MapQuest

    Witwatersrand Gold Mining Directions {{::location.tagLine.value.text}} Sponsored Topics. Legal. Help. Get directions, maps, and traffic for Witwatersrand Gold Mining, Gauteng. Check flight prices and hotel availability for your visit. <style type="text/css"> @font-face { font-family: "mq

  • The formation of gold deposits in South Africa

    Apr 20, 2017· At a first glance, the Witwatersrand basin, the largest known gold resource on our planet, is not automatically related to ocean research. However, in its 3 billion years old geological history

  • What And Where Is Witwatersrand? - WorldAtlas

    Apr 25, 2017· In 1886, gold was discovered in the Witwatersrand Basin, and since then half of all the gold that has been mined in the world has been derived from this and nearby sources. Scientists predict that the gold deposits in Witwatersrand formed nearly 3 billion years ago, when elemental gold formed compounds with sulfur that were washed down as