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Tati Goldfields
The Tati Goldfields are a mineral-rich band in Botswana and Zimbabwe in southern Africa. The band runs approximately long by wide, and crosses the Tati River. It is the southernmost of the gold-bearing bands in the Archaen greenstone (schist) belts of Zimbabwe. It is estimated that between 1866 and 1963 over 200,000 ounces of gold were produced from mines in the Tati Goldfields. History The area along the Tati River was pit mined by the Bakalanga before the arrival of Europeans. It may have been one of the sources of wealth for the Great Zimbabwe empire (c. 1200 to 1450). In 1866 Karl Mauch discovered the Tati goldfield, making it the first one discovered by Europeans in southern Africa. This led to the first South African gold rush. Geology The gold mineralization occurs in quartz veins, intruded into the volcano-sedimentary rocks of the Tati greenstone belt. Other economic minerals occur including nickel and copper. The major formation is the Selkirk Formation which is up t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Botswana
Botswana (, ), officially the Republic of Botswana ( tn, Lefatshe la Botswana, label=Setswana, ), is a landlocked country in Southern Africa. Botswana is topographically flat, with approximately 70 percent of its territory being the Kalahari Desert. It is bordered by South Africa to the south and southeast, Namibia to the west and north, and Zimbabwe to the northeast. It is connected to Zambia across the short Zambezi River border by the Kazungula Bridge. A country of slightly over 2.3 million people, Botswana is one of the most sparsely populated countries in the world. About 11.6 percent of the population lives in the capital and largest city, Gaborone. Formerly one of the world's poorest countries—with a GDP per capita of about US$70 per year in the late 1960s—it has since transformed itself into an upper-middle-income country, with one of the world's fastest-growing economies. Modern-day humans first inhabited the country over 200,000 years ago. The Tswana ethnic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zimbabwe
Zimbabwe (), officially the Republic of Zimbabwe, is a landlocked country located in Southeast Africa, between the Zambezi and Limpopo Rivers, bordered by South Africa to the south, Botswana to the south-west, Zambia to the north, and Mozambique to the east. The capital and largest city is Harare. The second largest city is Bulawayo. A country of roughly 15 million people, Zimbabwe has 16 official languages, with English, Shona language, Shona, and Northern Ndebele language, Ndebele the most common. Beginning in the 9th century, during its late Iron Age, the Bantu peoples, Bantu people (who would become the ethnic Shona people, Shona) built the city-state of Great Zimbabwe which became one of the major African trade centres by the 11th century, controlling the gold, ivory and copper trades with the Swahili coast, which were connected to Arab and Indian states. By the mid 15th century, the city-state had been abandoned. From there, the Kingdom of Zimbabwe was established, fol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tati River
The Tati River is a river in northeast Botswana, a tributary of the Shashe River, which in turn is a tributary of the Limpopo River. The river flows through Francistown, where it is joined by the Ntshe (or Inchwe) River from the left. History About 1865 a hunter came across traces of old gold diggings near the Tati. He invited Karl Mauch to accompany him on his next trip, and in 1866 Mauch announced that he had found the Tati goldfields extending about which started the first gold rush in Southern Africa the following year. In 1869 the Englishman Daniel Francis came to hunt for gold on the river, before heading south to the Kimberley diamond fields in 1870. The gold was hard to extract, and the gold rush died down. Francis returned in 1880 and obtained mining rights from King Lobengula. Mining activity revived in the 1880s and 1890s, and Francistown was established in 1897 when the railway arrived. The town was named after Francis, who owned most of the land in the area. Use ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Schist
Schist ( ) is a medium-grained metamorphic rock showing pronounced schistosity. This means that the rock is composed of mineral grains easily seen with a low-power hand lens, oriented in such a way that the rock is easily split into thin flakes or plates. This texture (geology), texture reflects a high content of platy minerals, such as micas, talc, chlorite group, chlorite, or graphite. These are often interleaved with more granular minerals, such as feldspar or quartz. Schist typically forms during regional metamorphism accompanying the process of mountain building (orogeny) and usually reflects a medium Metamorphism#Metamorphic grades, grade of metamorphism. Schist can form from many different kinds of rocks, including sedimentary rocks such as mudstones and igneous rocks such as tuffs. Schist metamorphosed from mudstone is particularly common and is often very rich in mica (a ''mica schist''). Where the type of the original rock (the protolith) is discernible, the schist is us ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kalanga People
The Kalanga or Bakalanga are a southern Bantu ethnic group mainly inhabiting Matebeleland in Zimbabwe, northeastern Botswana and Limpopo Province in South Africa. They are historically related to the Nambya, Karanga, Bapedi and Venda. Current day BaKalanga people are descendants of the Leopard Kopje’s people who greatly influenced civilization in the Southern sphere of the African continent. BaKalanga history shows and tells us that they are the builders of the Mapungubwe Empire which was Southern Africa’s first uniform Kingdom. From Mapungubwe they were also part of the Karanga Kingdom of Great Zimbabwe (Nzimabwe,or Nzi we Mabwe-TjiKalanga language). Upon the fall of the Great Zimbabwe Kingdom they went on to build the Khami ruins found in today’s Matebeleland Province in Zimbabwe and lastly proceeded on to occupy the Domboshaba (Botswana) and Njelele (Zimbabwe) shrines. Kalanga people also believe in rainmaking rites like their BaLobedu and VhaVenda counterparts as wil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Great Zimbabwe
Great Zimbabwe is a medieval city in the south-eastern hills of Zimbabwe near Lake Mutirikwi and the town of Masvingo. It is thought to have been the capital of a great kingdom during the country's Late Iron Age about which little is known. Construction on the city began in the 9th century and continued until it was abandoned in the 15th century. The edifices are believed to have been erected by the ancestral Shona. The stone city spans an area of and could have housed up to 18,000 people at its peak, giving it a population density of approximately 2,500 per square kilometre. It is recognised as a World Heritage Site by UNESCO. Great Zimbabwe is believed to have served as a royal palace for the local monarch. As such, it would have been used as the seat of political power. Among the edifice's most prominent features were its walls, some of which are eleven metres high. They were constructed without mortar (dry stone). Eventually, the city was abandoned and fell into ruin. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Karl Mauch
Karl Gottlieb Mauch (7 May 1837 – 4 April 1875) was a German explorer and geographer of Africa. He reported on the archaeological ruins of Great Zimbabwe in 1871 during his search for the biblical land of Ophir. Exploration and Great Zimbabwe In 1871, Mauch arrived at the stone ruins now known as Great Zimbabwe, five years after discovering the first gold mines in the Transvaal. Mauch believed that the ruins were the remnants of the lost biblical city of Ophir, described as the origin of the gold given by the Queen of Sheba to King Solomon. He did not believe that the structures could have been built by a previous local population similar to those which inhabited the area at the time of his excavation, and so pressed ahead with his research. Further research on the site (including one of the first archaeological uses of aviation) illustrated that the structures did indeed have African origin. Because of the ethnocentrism popular in the 19th century, Mauch and his contempo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dacite
Dacite () is a volcanic rock formed by rapid solidification of lava that is high in silica and low in alkali metal oxides. It has a fine-grained (aphanitic) to porphyritic texture and is intermediate in composition between andesite and rhyolite. It is composed predominantly of plagioclase feldspar and quartz. Dacite is relatively common, occurring in many tectonic settings. It is associated with andesite and rhyolite as part of the subalkaline volcanic rock, subalkaline tholeiite, tholeiitic and calc-alkaline magma series. Composition Dacite consists mostly of plagioclase feldspar and quartz with biotite, hornblende, and pyroxene (augite or enstatite). The quartz appears as rounded, corroded phenocrysts, or as an element of the ground-mass. The plagioclase in dacite ranges from oligoclase to andesine and labradorite. Sanidine occurs, although in small proportions, in some dacites, and when abundant gives rise to rocks that form rhyodacite, transitions to the rhyolites. The rel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhyolite
Rhyolite ( ) is the most silica-rich of volcanic rocks. It is generally glassy or fine-grained (aphanitic) in texture, but may be porphyritic, containing larger mineral crystals (phenocrysts) in an otherwise fine-grained groundmass. The mineral assemblage is predominantly quartz, sanidine, and plagioclase. It is the extrusive equivalent to granite. Rhyolitic magma is extremely viscous, due to its high silica content. This favors explosive eruptions over effusive eruptions, so this type of magma is more often erupted as pyroclastic rock than as lava flows. Rhyolitic ash-flow tuffs are among the most voluminous of continental igneous rock formations. Rhyolitic tuff has been extensively used for construction. Obsidian, which is rhyolitic volcanic glass, has been used for tools from prehistoric times to the present day because it can be shaped to an extremely sharp edge. Rhyolitic pumice finds use as an abrasive, in concrete, and as a soil amendment. Description Rhyolite i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quartzite
Quartzite is a hard, non- foliated metamorphic rock which was originally pure quartz sandstone.Essentials of Geology, 3rd Edition, Stephen Marshak, p 182 Sandstone is converted into quartzite through heating and pressure usually related to tectonic compression within orogenic belts. Pure quartzite is usually white to grey, though quartzites often occur in various shades of pink and red due to varying amounts of hematite. Other colors, such as yellow, green, blue and orange, are due to other minerals. The term ''quartzite'' is also sometimes used for very hard but unmetamorphosed sandstones that are composed of quartz grains thoroughly cemented with additional quartz. Such sedimentary rock has come to be described as orthoquartzite to distinguish it from metamorphic quartzite, which is sometimes called metaquartzite to emphasize its metamorphic origins. Quartzite is very resistant to chemical weathering and often forms ridges and resistant hilltops. The nearly pure silica conte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Francistown
Francistown is the second largest city in Botswana, with a population of about 103,417 and 147,122 inhabitants for its agglomeration at the 2022 census. and often described as the "''Capital of the North''" or as the natives would have it “''Turopo ya muka''” which is in the iKalanga language. It is located in eastern Botswana, about north-northeast from the capital, Gaborone. Francistown is located at the confluence of the Tati and Ntshe rivers, and near the Shashe River (tributary to the Limpopo) and 90 kilometres (55 miles) from the international border with Zimbabwe. Francistown was the centre of Southern Africa's first gold rush and is still surrounded by old and abandoned mines. The City of Francistown is an administrative district, separated from North-East District. It is administered by Francistown City Council.The main language spoken and used in and around Francistown is the Kalanga language. Other languages used in the area are isiNdebele, ChiShona as well a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mining Industry Of Botswana
The mining industry of Botswana has dominated the national economy of Botswana since the 1970s. Diamond has been the leading component of the mineral sector since large-scale diamond production began in 1972 by Debswana. Most of Botswana's diamond production is of gem quality, resulting in the country's position as the world's leading producer of diamond by value. Copper, gold, nickel, coal and soda ash production also has held significant, though smaller, roles in the economy. In 2005, mining accounted for about 38% of Botswana's real gross domestic product (GDP), and more than 50% of government revenues were derived from mining and mineral-processing activity. In 2005, the nominal value of minerals produced in Botswana exceeded that of 2004 by about 20% in U.S. dollars. Much of the increase was attributed to higher international mineral prices. Diamond, copper-nickel matte, and gold, in order of value, accounted for most of the increase. Philip M. Mobbs"The Mineral Industry of B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
