1.
Johannesburg
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Johannesburg is the largest city in South Africa and is one of the 50 largest urban areas in the world. It is the capital of Gauteng, which is the wealthiest province in South Africa. While Johannesburg is not one of South Africas three capital cities, it is the seat of the Constitutional Court, the city is located in the mineral-rich Witwatersrand range of hills and is the centre of large-scale gold and diamond trade. In 2011, the population of the city of Johannesburg was 4,434,827, in the same year, the population of Greater Johannesburg Metropolitan Area was 7,860,781. Some view the surrounding the city of Johannesburg yet more broadly than the metropolitan area, adding Ekurhuleni, West Rand and Lenasia. The land area of the city is large in comparison with those of other major cities, resulting in a moderate population density of 2. The city was established in 1886 following the discovery of gold on what had been a farm, the city is commonly interpreted as the modern day El Dorado due to the extremely large gold deposit found along the Witwatersrand. The name is attributed to one or all of three men involved in the establishment of the city, in ten years, the population was 100,000 inhabitants. A separate city from the late 1970s until the 1990s, Soweto is now part of Johannesburg, Soweto, although eventually incorporated into Johannesburg, had been separated as a residential area for blacks, who were not permitted to live in Johannesburg proper. Lenasia is predominantly populated by English-speaking South Africans of Indian descent, controversy surrounds the origin of the name. There were quite a number of people with the name Johannes who were involved in the history of the city. Among them are the principal clerk attached to the office of the surveyor-general Johannes Rissik, Christiaan Johannes Joubert, another was Stephanus Johannes Paulus Paul Kruger, president of the South African Republic 1883-1900. Johannes Meyer, the first government official in the area is another possibility, precise records for the choice of name were lost. Rissik and Joubert were members of a delegation sent to England to attain mining rights for the area. Joubert had a park in the city named after him and Rissik Street is today a street where the historically important and dilapidated Post Office, since burnt out. The region surrounding Johannesburg was originally inhabited by San people, the Sotho–Tswana practised farming and extensively mined and smelted metals that were available in the area. The most prominent site within Johannesburg is Melville Koppies, which contains an iron smelting furnace, the main Witwatersrand gold reef was discovered in June 1884 on the farm Vogelstruisfontein by Jan Gerritse Bantjes that triggered the Witwatersrand Gold Rush and the start of Johannesburg in 1886. The discovery of gold rapidly attracted people to the area, making necessary a name, Johannes Meyer, the first government official in the area is another possibility
2.
South Africa
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South Africa, officially the Republic of South Africa, is the southernmost country in Africa. South Africa is the 25th-largest country in the world by land area and it is the southernmost country on the mainland of the Old World or the Eastern Hemisphere. About 80 percent of South Africans are of Sub-Saharan African ancestry, divided among a variety of ethnic groups speaking different Bantu languages, the remaining population consists of Africas largest communities of European, Asian, and multiracial ancestry. South Africa is a multiethnic society encompassing a variety of cultures, languages. Its pluralistic makeup is reflected in the recognition of 11 official languages. The country is one of the few in Africa never to have had a coup détat, however, the vast majority of black South Africans were not enfranchised until 1994. During the 20th century, the black majority sought to recover its rights from the dominant white minority, with this struggle playing a role in the countrys recent history. The National Party imposed apartheid in 1948, institutionalising previous racial segregation, since 1994, all ethnic and linguistic groups have held political representation in the countrys democracy, which comprises a parliamentary republic and nine provinces. South Africa is often referred to as the Rainbow Nation to describe the multicultural diversity. The World Bank classifies South Africa as an economy. Its economy is the second-largest in Africa, and the 34th-largest in the world, in terms of purchasing power parity, South Africa has the seventh-highest per capita income in Africa. However, poverty and inequality remain widespread, with about a quarter of the population unemployed, nevertheless, South Africa has been identified as a middle power in international affairs, and maintains significant regional influence. The name South Africa is derived from the geographic location at the southern tip of Africa. Upon formation the country was named the Union of South Africa in English, since 1961 the long form name in English has been the Republic of South Africa. In Dutch the country was named Republiek van Zuid-Afrika, replaced in 1983 by the Afrikaans Republiek van Suid-Afrika, since 1994 the Republic has had an official name in each of its 11 official languages. Mzansi, derived from the Xhosa noun umzantsi meaning south, is a name for South Africa. South Africa contains some of the oldest archaeological and human fossil sites in the world, extensive fossil remains have been recovered from a series of caves in Gauteng Province. The area is a UNESCO World Heritage site and has termed the Cradle of Humankind
3.
Second Boer War
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The Second Boer War, usually known as the Boer War and also at the time as the South African War, started on 11 October 1899 and ended on 31 May 1902. Great Britain defeated two Boer states in South Africa, the South African Republic and the Orange Free State, Britain was aided by its Cape Colony, Colony of Natal and some native African allies. The British war effort was supported by volunteers from the British Empire, including Southern Africa, the Australian colonies, Canada, India. All other nations were neutral, but public opinion in them was largely hostile to Britain, inside Britain and its Empire there also was significant opposition to the Second Boer War. The British were overconfident and under-prepared, the Boers were very well armed and struck first, besieging Ladysmith, Kimberley, and Mafeking in early 1900, and winning important battles at Colenso, Magersfontein and Stormberg. Staggered, the British brought in numbers of soldiers and fought back. General Redvers Buller was replaced by Lord Roberts and Lord Kitchener and they relieved the three besieged cities, and invaded the two Boer republics in late 1900. The onward marches of the British Army were so overwhelming that the Boers did not fight staged battles in defense of their homeland, the British quickly seized control of all of the Orange Free State and Transvaal, as the civilian leadership went into hiding or exile. In conventional terms, the war was over, Britain officially annexed the two countries in 1900, and called a khaki election to give the government another six years of power in London. However, the Boers refused to surrender and they reverted to guerrilla warfare under new generals Louis Botha, Jan Smuts, Christiaan de Wet and Koos de la Rey. Two more years of attacks and quick escapes followed. As guerrillas without uniforms, the Boer fighters easily blended into the farmlands, which provided hiding places, supplies, the British solution was to set up complex nets of block houses, strong points, and barbed wire fences, partitioning off the entire conquered territory. The civilian farmers were relocated into concentration camps, where very large proportions died of disease, especially the children, then the British mounted infantry units systematically tracked down the highly mobile Boer guerrilla units. The battles at this stage were small operations with few combat casualties The war ended in surrender, the British successfully won over the Boer leaders, who now gave full support to the new political system. Both former republics were incorporated into the Union of South Africa in 1910, the conflict is commonly referred to as simply the Boer War, since the First Boer War is much less well known. Boer was the term for Afrikaans-speaking white South Africans descended from the Dutch East India Companys original settlers at the Cape of Good Hope. It is officially called the South African War and it is known as the Anglo-Boer War among some South Africans. In Afrikaans it may be called the Anglo-Boereoorlog, Tweede Boereoorlog, in South Africa it is officially called the South African War
4.
History of South Africa
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The history of South Africa starts more than 100,000 years ago, when the first humans inhabited the region. The discoveries also led to new conflicts culminating in open warfare between the Boer settlers and imperial Britain, fought essentially for control over the nascent South African mining industry. The country became a nation state within the British Empire in 1934 following enactment of the Status of the Union Act. The dominion came to an end on 31 May 1961 in consequence of a 1960 referendum, from 1948 to 1994, South African politics were dominated by Afrikaner nationalism. It was an extension of segregationist legislation enacted in 1960, since then the ANC has dominated the politics of the country in an uneasy alliance with the South African Communist Party and the Congress of South African Trade Unions. It was inhabited by Australopithecines since at least 2.5 million years ago, Modern human settlement occurred around 125,000 years ago in the Middle Stone Age, as shown by archaeological discoveries at Klasies River Caves. The first human habitation is associated with a DNA group originating in a area of southern Africa. At the Blombos cave Professor Raymond Dart discovered the skull of a 2.51 million year old Taung Child in 1924, in further research at the Blombos cave in 2002, stones were discovered engraved with grid or cross-hatch patterns, dated to some 70,000 years ago. This has been interpreted as the earliest example ever discovered of abstract art or symbolic art created by Homo sapiens, many more species of early hominid have come to light in recent decades. The oldest is Little Foot, a collection of footbones of an unknown hominid between 2.2 and 3.3 million years old, discovered at Sterkfontein by Ronald J. Clarke. An important recent find was that of 1.9 million year old Australopithecus sediba, in 2015, the discovery near Johannesburg of a previously unknown species of Homo was announced, named Homo naledi. It has been described as one of the most important paleontological discoveries in modern times, the descendants of the Middle Paleolithic populations are thought to be the aboriginal San and Khoikhoi tribes. The San and Khoikhoi are grouped under the term Khoisan, and are distinguished only by their respective occupations. Whereas the San were hunter-gathers, the Khoikhoi were pastoral herders, archaeological discoveries of livestock bones on the Cape Peninsula indicate that the Khoikhoi began to settle there by about 2000 years ago. In the late 15th and early 16th centuries, Portuguese mariners, later, English and Dutch seafarers in the late 16th and 17th centuries exchanged metals for cattle and sheep with the Khoikhoi. The initial origin of the Khoikhoi remains uncertain, the establishment of the staging post by the Dutch East India Company at the Cape in 1652 soon brought the Khoikhoi into conflict with Dutch settlers over land ownership. Cattle rustling and livestock theft ensued, with the Khoikhoi being ultimately expelled from the peninsula by force, the first Khoikhoi-Dutch War broke out in 1659, the second in 1673, and the third 1674–1677. The disease had brought to the Cape by Dutch sailors
5.
Religion in South Africa
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South Africa is a secular state. Its constitution guarantees freedom of religion, many religions are represented in the ethnic and regional diversity of the population, with Christianity overall being dominant. The African Traditional Religion of the Khoisan and Bantu speakers during apartheid were succeeded in predominance by Christianity introduced by the Dutch, during apartheid there was sustained persecution of African Traditional Religion and forced conversions during that era. In 1930 the majority of Afrikaners were Calvinists and they assisted Bartolomeu Dias and Vasco da Gama who first sailed around the Cape of Good Hope in 1488 and 1497 respectively. However, Jewish settlers only began to arrive in numbers from the 1820s, the Baháí Faith was introduced in 1911. The Baháí community decided to limit membership in its national assembly to black adherents when an assembly was prohibited under Apartheid. The Census 2001 provided the most recent national statistics for religious denominations, the Census 2011 form did not include any questions about religion due to low priority. A2015 study estimated some 6,500 believers in Christ from a Muslim background residing in the country, Christianity is the dominant religion in South Africa, with almost 80% of the population in 2001 professing to be Christian. No single denomination predominates, with mainstream Protestant churches, Pentecostal churches, African initiated churches, importantly, there is significant and sustained syncretism with African Traditional Religion among most of the self-professed Christians in South Africa. Of the total population of 44.8 million,35.8 million or 79. 8% identified as members of a Christian denomination. The history of Protestantism in South Africa dates back to the initial European settlement on the Cape of Good Hope in 1652, since then, Protestantism has been the predominant religion of the European settlers and today, of South Africa as a whole. The largest Protestant denomination in the country is Pentecostalism, followed by Methodism, Dutch Reformed, the Zion Christian Church is the largest African initiated church in Southern Africa. The churchs headquarters are at Zion City Moria in Limpopo Province, according to the 1996 South African Census, the church numbered 3.87 million members. By the 2001 South African Census, its membership had increased to 4.97 million members and it is made up of 26 dioceses and archdioceses plus an apostolic vicariate. In 1996, there were approximately 3.3 million Catholics in South Africa making up 6% of the total South African population, currently, there are 3.8 million Catholics. 2.7 million are of various black African ethnic groups, such as Zulu, Xhosa, coloured and white South Africans each account for roughly 300,000. Most white Catholics are English speaking, and the majority are descended from Irish immigrants, many others are Portuguese settlers who left Angola and Mozambique after they became independent in the 1970s, or their children. The proportion of Catholics among the predominantly Calvinist white Afrikaans speakers, islam in South Africa is a minority religion, practiced by less than 1. 5% of the total population, according to estimates
6.
Gold rush
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A gold rush is a new discovery of gold that brings an onrush of miners seeking their fortune. Major gold rushes took place in the 19th century in Australia, New Zealand, Brazil, Canada, South Africa, the wealth that resulted was distributed widely because of reduced migration costs and low barriers to entry. While gold mining itself was unprofitable for most diggers and mine owners, some people made fortunes. The resulting increase in the gold supply stimulated global trade. Historians have written extensively about the migration, trade, colonization, Gold rushes helped spur a huge immigration that often led to permanent settlement of new regions. Activities propelled by gold rushes define significant aspects of the culture of the Australian, at a time when the worlds money supply was based on gold, the newly mined gold provided economic stimulus far beyond the gold fields. Gold rushes extend back as far as gold mining, to the Roman Empire, whose gold mining was described by Diodorus Siculus and Pliny the Elder, within each mining rush there is typically a transition through progressively higher capital expenditures, larger organizations, and more specialized knowledge. They may also progress from high-unit value to lower unit value minerals, a rush typically begins with the discovery of placer gold made by an individual. At first the gold may be washed from the sand and gravel by individual miners with little training, using a pan or similar simple instrument. Winning the gold in this manner requires almost no capital investment, only a pan or equipment that may be built on the spot. The low investment, the value per unit weight of gold. After the sluice-box stage, placer mining may become increasingly large scale, requiring larger organisations, small claims owned and mined by individuals may need to be merged into larger tracts. Difficult-to-reach placer deposits may be mined by tunnels, water may be diverted by dams and canals to placer mine active river beds or to deliver water needed to wash dry placers. The more advanced techniques of ground sluicing, hydraulic mining and dredging may be used, typically the heyday of a placer gold rush would last only a few years. Hard rock mining, like mining, may evolve from low capital investment and simple technology to progressively higher capital. The surface outcrop of a gold-bearing vein may be oxidized, so that the gold occurs as native gold, the first miners may at first build a simple arrastra to crush their ore, later, they may build stamp mills to crush ore more quickly. As the miners dig down, they may find that the part of vein contains gold locked in sulfide or telluride minerals. If the ore is still rich, it may be worth shipping to a distant smelter
7.
El Dorado
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The legends surrounding El Dorado changed over time, as it went from being a man, to a city, to a kingdom, and then finally an empire. A second location for El Dorado was inferred from rumors, which inspired several unsuccessful expeditions in the late 1500s in search of a city called Manõa on the shores of Lake Parime, two of the most famous of these expeditions were led by Sir Walter Raleigh. In pursuit of the legend, Spanish conquistadors and numerous others searched Colombia, Venezuela, in the course of these explorations, much of northern South America, including the Amazon River, was mapped. By the beginning of the 19th century most people dismissed the existence of the city as a myth. The Muisca occupied the highlands of Cundinamarca and Boyacá departments of Colombia in two migrations from outlying areas, one starting ~1270 BCE, and a second between 800 BCE and 500 BCE. At those times, other ancient civilizations also flourished in the highlands. The Muisca Confederation was as advanced as the Aztec, Maya, in the mythology of the Muisca, Mnya the Gold or golden color, represents the energy contained in the trinity of Chiminigagua, which constitutes the creative power of everything that exists. Chiminigagua is related to Bachué, Cuza, Chibchacum, Bochica, the original narrative can be found in the rambling chronicle El Carnero of Juan Rodriguez Freyle. People gathered here to perform rituals and sacrifices mostly with gold, important lakes were Lake Guatavita, Lake Iguaque, Lake Fúquene, Lake Tota, the Siecha Lakes, Lake Teusacá and Lake Ubaque. El Dorado is applied to a story in which precious stones were found in fabulous abundance along with gold coins. The concept of El Dorado underwent several transformations, and eventually accounts of the myth were also combined with those of a legendary lost city. The resulting El Dorado myth enticed European explorers for two centuries, among the earliest stories was the one told on his deathbed by Juan Martinez, a captain of munitions for Spanish adventurer Diego de Ordaz, who claimed to have visited the city of Manoa. Martinez had allowed a store of gunpowder to fire and was condemned to death. The emperor, after he had him, knew him to be a Christian, and caused him to be lodged in his palace. He was brought all the way blindfold, led by the Indians, until he came to the entrance of Manoa itself. But Martinez, not desirous to stay, obtained the favour of Inga to depart, during the 16th and 17th centuries, Europeans, still fascinated by the New World, believed that a hidden city of immense wealth existed. Numerous expeditions were mounted to search for treasure, all which ended in failure. The illustration of El Dorados location on maps only made matters worse, the mythical city of El Dorado on Lake Parime was marked on numerous maps until its existence was disproved by Alexander von Humboldt during his Latin America expedition
8.
Folklore
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Folklore is the body of expressive culture shared by a particular group of people, it encompasses the traditions common to that culture, subculture or group. These include oral traditions such as tales, proverbs and jokes and they include material culture, ranging from traditional building styles to handmade toys common to the group. Folklore also includes customary lore, the forms and rituals of celebrations like Christmas and weddings, folk dances, each one of these, either singly or in combination, is considered a folklore artifact. Just as essential as the form, folklore also encompasses the transmission of these artifacts from one region to another or from one generation to the next, for folklore is not taught in a formal school curriculum or studied in the fine arts. Instead these traditions are passed along informally from one individual to another either through verbal instruction or demonstration, the academic study of folklore is called folkloristics. To fully understand folklore, it is helpful to clarify its component parts and it is well-documented that the term was coined in 1846 by the Englishman William Thoms. He fabricated it to replace the contemporary terminology of popular antiquities or popular literature, the second half of the compound word, lore, proves easier to define as its meaning has stayed relatively stable over the last two centuries. Coming from Old English lār instruction, and with German and Dutch cognates, it is the knowledge and traditions of a particular group, the concept of folk proves somewhat more elusive. When Thoms first created this term, folk applied only to rural, frequently poor, a more modern definition of folk is a social group which includes two or more persons with common traits, who express their shared identity through distinctive traditions. Folk is a concept which can refer to a nation as in American folklore or to a single family. This expanded social definition of folk supports a view of the material, i. e. the lore. These now include all things people make with words, things they make with their hands, Folklore is no longer circumscribed as being chronologically old or obsolete. The folklorist studies the traditional artifacts of a group and how they are transmitted. Transmission is a part of the folklore process. Without communicating these beliefs and customs within the group over space and time, for folklore is also a verb. These folk artifacts continue to be passed along informally, as a rule anonymously, the folk group is not individualistic, it is community-based and nurtures its lore in community. As new groups emerge, new folklore is created… surfers, motorcyclists, in direct contrast to high culture, where any single work of a named artist is protected by copyright law, folklore is a function of shared identity within the social group. Having identified folk artifacts, the professional folklorist strives to understand the significance of these beliefs, customs, for these cultural units would not be passed along unless they had some continued relevance within the group
9.
Gold
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Gold is a chemical element with symbol Au and atomic number 79. In its purest form, it is a bright, slightly yellow, dense, soft, malleable. Chemically, gold is a metal and a group 11 element. It is one of the least reactive chemical elements and is solid under standard conditions, Gold often occurs in free elemental form, as nuggets or grains, in rocks, in veins, and in alluvial deposits. It occurs in a solid solution series with the element silver and also naturally alloyed with copper. Less commonly, it occurs in minerals as gold compounds, often with tellurium, golds atomic number of 79 makes it one of the higher numbered, naturally occurring elements. It is thought to have produced in supernova nucleosynthesis, from the collision of neutron stars. Because the Earth was molten when it was formed, almost all of the present in the early Earth probably sank into the planetary core. Gold is resistant to most acids, though it does dissolve in aqua regia, a mixture of acid and hydrochloric acid. Gold also dissolves in solutions of cyanide, which are used in mining and electroplating. Gold dissolves in mercury, forming amalgam alloys, but this is not a chemical reaction, as a precious metal, gold has been used for coinage, jewelry, and other arts throughout recorded history. A total of 186,700 tonnes of gold is in existence above ground, the world consumption of new gold produced is about 50% in jewelry, 40% in investments, and 10% in industry. Gold is also used in infrared shielding, colored-glass production, gold leafing, certain gold salts are still used as anti-inflammatories in medicine. As of 2014, the worlds largest gold producer by far was China with 450 tonnes, Gold is cognate with similar words in many Germanic languages, deriving via Proto-Germanic *gulþą from Proto-Indo-European *ǵʰelh₃-. The symbol Au is from the Latin, aurum, the Latin word for gold, the Proto-Indo-European ancestor of aurum was *h₂é-h₂us-o-, meaning glow. This word is derived from the root as *h₂éu̯sōs, the ancestor of the Latin word Aurora. This etymological relationship is presumably behind the frequent claim in scientific publications that aurum meant shining dawn, Gold is the most malleable of all metals, a single gram can be beaten into a sheet of 1 square meter, and an avoirdupois ounce into 300 square feet. Gold leaf can be thin enough to become semi-transparent
10.
Alluvium
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Alluvium is loose, unconsolidated soil or sediments, which has been eroded, reshaped by water in some form, and redeposited in a non-marine setting. Alluvium is typically made up of a variety of materials, including fine particles of silt and clay and larger particles of sand, when this loose alluvial material is deposited or cemented into a lithological unit, or lithified, it is called an alluvial deposit. The term alluvium is not typically used in situations where the formation of the sediment can clearly be attributed to another process that is well described. This includes, lake sediments, river sediments, or glacially-derived sediments, sediments that are formed or deposited in a perennial stream or river are typically not referred to as alluvial. Most alluvium is very young, and is often referred to as cover because these sediments obscure the underlying bedrock. Most sedimentary material that fills a basin that is not lithified is typically lumped together as alluvial, alluvium of Pliocene age occurs, for example, in parts of Idaho. Alluvium of late Miocene age occurs, for example, in the valley of the San Joaquin River, alluvium can contain valuable ores such as gold and platinum and a wide variety of gemstones. Such a concentration of ores is termed a placer deposit
11.
Mining
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Mining is extraction of valuable minerals or other geological materials from the earth usually from an orebody, lode, vein, seam, reef or placer deposits. These deposits form a mineralized package that is of economic interest to the miner, ores recovered by mining include metals, coal, oil shale, gemstones, limestone, chalk, dimension stone, rock salt, potash, gravel, and clay. Mining is required to obtain any material that cannot be grown through agricultural processes, Mining in a wider sense includes extraction of any non-renewable resource such as petroleum, natural gas, or even water. Mining of stones and metal has been a human activity since pre-historic times, Mining operations usually create a negative environmental impact, both during the mining activity and after the mine has closed. Hence, most of the nations have passed regulations to decrease the impact. Work safety has long been a concern as well, and modern practices have significantly improved safety in mines, levels of metals recycling are generally low. Unless future end-of-life recycling rates are stepped up, some rare metals may become unavailable for use in a variety of consumer products, due to the low recycling rates, some landfills now contain higher concentrations of metal than mines themselves. Since the beginning of civilization, people have used stone, ceramics and, later and these were used to make early tools and weapons, for example, high quality flint found in northern France, southern England and Poland was used to create flint tools. Flint mines have been found in areas where seams of the stone were followed underground by shafts. The mines at Grimes Graves and Krzemionki are especially famous, other hard rocks mined or collected for axes included the greenstone of the Langdale axe industry based in the English Lake District. The oldest-known mine on archaeological record is the Lion Cave in Swaziland, at this site Paleolithic humans mined hematite to make the red pigment ochre. Mines of an age in Hungary are believed to be sites where Neanderthals may have mined flint for weapons. Ancient Egyptians mined malachite at Maadi, at first, Egyptians used the bright green malachite stones for ornamentations and pottery. Later, between 2613 and 2494 BC, large building projects required expeditions abroad to the area of Wadi Maghareh in order to secure minerals and other resources not available in Egypt itself. Quarries for turquoise and copper were found at Wadi Hammamat, Tura, Aswan and various other Nubian sites on the Sinai Peninsula. Mining in Egypt occurred in the earliest dynasties, the gold mines of Nubia were among the largest and most extensive of any in Ancient Egypt. These mines are described by the Greek author Diodorus Siculus, who mentions fire-setting as one used to break down the hard rock holding the gold. One of the complexes is shown in one of the earliest known maps, the miners crushed the ore and ground it to a fine powder before washing the powder for the gold dust
12.
Witwatersrand
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The Witwatersrand aka The Reef, is a 56-kilometre-long north-facing scarp in the Gauteng Province of South Africa. This east–west-running scarp can be traced with only one short gap from Bedfordview in the east, through Johannesburg and Roodepoort, the scarp forms the northern edge of a 7- to 10-kilometre-wide plateau which rises about 200 m above the surrounding plains of the Highveld. The entire plateau-like structure is often called the “Witwatersrand”. The plateau’s elevation above sea-level is between 1700–1800 m, the Witwatersrand lies within the province of Gauteng, formerly called the “PWV”, an abbreviation for Pretoria, Witwatersrand and Vereeniging. When used in this context, the term Witwatersrand refers to the entire Greater Johannesburg Metropolitan Area. This conurbation is oblong in shape and runs from Springs in the east to Randfontein and Carletonville in the west and this area is also often colloquially referred to as “the Rand” or “Wits”. Because of the quantities of gold that have been extracted from the Witwatersrand rocks. The Witwatersrand plateau consists of a 5000- to 7000-metre-thick layer of sedimentary rocks laid down over a period of about 260 million years. The oldest rocks form the northern scarp of the Witwatersrand plateau, Gold is found in the conglomerate strata of the younger members of the Supergroup. The abundance of gold is without equal anywhere else in the world. Over 50000 tons have been mined from these rocks since this precious metal was first discovered here in 1886 and this accounts for approximately 50% of all the gold ever mined on earth. The gold-bearing conglomerates occur chiefly in the upper, younger layers of the Witwatersrand Supergroup of rocks, the Witwatersrand Supergroup strata which reach the surface in Johannesburg dip downwards to the south at an angle of about 30°. From there on they are almost everywhere, with few exceptions. Gold mining in these buried portions of the Witwatersrand Supergroup is sometimes carried out at depths of 4 kilometres below the surface, the Kaapvaal Craton, one of the first microcontinents to form on Earth through plate tectonics, was assembled about 3900 million years ago. Its size and position relative to Southern Africa today is indicated in the diagram on the left, about 3000 million years ago local cooling of the underlying asthenosphere caused subsidence of the south-eastern portion of this microcontinent below sea level. The floor of newly formed “Witwatersrand sea” consisted of smoothly eroded granites. Sandy sediments brought in by rivers from the north started being deposited on the granite about 2970 million years ago and this sandy layer eventually became compressed to form the Orange Grove Quartzite, the lowermost layer of the Witwatersrand Supergroup. This quartzite formation forms the scarp from which the Witwatersrand derives its name, as the sea deepened finer grained and muddy sediments accumulated
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