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Kibali Gold Mine
The Kibali Gold Mine is a combined open pit and underground gold mine in the Haut-Uélé province of the northeast Democratic Republic of the Congo. By area, it is one of the largest in Africa. The mine is named for the nearby Kibali River. Location The Kibali Gold Mine is in the Watsa and Faradje territories of Haut-Uélé province, formerly the Haut-Uele District of Orientale Province. It is to the southeast of the town of Kalimva. It is about east of Isiro, the capital of Haut-Uélé, west of Arua on the Ugandan border, and from the port of Mombasa in Kenya. The main access route is by road from Kampala, Uganda, about distant. The concession covers of the Kilo-Moto goldfields. It includes the Karagba-Chaffeur-Durba (KCD) deposit complex and the satellite Sessenge, Pakaka, Pamao, Gorumbwa, Kibali, Mengu Hill, Mengu Village, Megi, Marakeke, Kombokolo, Sessenge and Ndala deposits. It is in the Moto greenstone belt, which contains Archean volcano-sedimentary, pyrocl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Haut-Uele District
Haut-Uele District (french: District du Haut-Uele, nl, District Boven-Uele) was a district of the Belgian Congo and the Democratic Republic of the Congo. It was formed from part of Uele District in 1912. It roughly corresponded in area to the present Haut-Uélé province. Location Haut-Uele District (Upper Uele District) was named after the Uele River, and covers the upper part of the river basin. Belgian Congo The Haut-Uele District was created by an ''arrêté royal'' of 28 March 1912, which divided the Congo into 22 districts. A 1912 map shows that the former Uele District had been broken into the Haut-Uele and Bas-Uele (Lower Uele) districts. Haut-Uele was bordered by French territory to the north, British territory to the east, Ituri and Stanleyville districts to the south and Bas-Uele to the west. The Haut-Uele District became part of the Orientale Province created in 1913. Kilo-Moto is a region in the far northeast corner of the Democratic Republic of the Congo (DRC) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pyroclastic Rock
Pyroclastic rocks (derived from the el, πῦρ, links=no, meaning fire; and , meaning broken) are clastic rocks composed of rock fragments produced and ejected by explosive volcanic eruptions. The individual rock fragments are known as pyroclasts. Pyroclastic rocks are a type of volcaniclastic deposit, which are deposits made predominantly of volcanic particles. 'Phreatic' pyroclastic deposits are a variety of pyroclastic rock that forms from volcanic steam explosions and they are entirely made of accidental clasts. 'Phreatomagmatic' pyroclastic deposits are formed from explosive interaction of magma with groundwater. Unconsolidated accumulations of pyroclasts are described as tephra. Tephra may become lithified to a pyroclastic rock by cementation or chemical reactions as the result of the passage of hot gases (fumarolic alteration) or groundwater (e.g. hydrothermal alteration and diagenesis) and burial, or, if it is emplaced at temperatures so hot that the soft glassy pyrocl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marburg Virus Disease
Marburg virus disease (MVD; formerly Marburg hemorrhagic fever) is a viral hemorrhagic fever in humans and primates caused by either of the two Marburgviruses: Marburg virus (MARV) and Ravn virus (RAVV). Its clinical symptoms are very similar to those of Ebola virus disease (EVD). Egyptian fruit bats are believed to be the normal carrier in nature and Marburg virus RNA has been isolated from them. Signs and symptoms The most detailed study on the frequency, onset, and duration of MVD clinical signs and symptoms was performed during the 1998–2000 mixed MARV/RAVV disease outbreak. A maculopapular rash, petechiae, purpura, ecchymoses, and hematomas (especially around needle injection sites) are typical hemorrhagic manifestations. However, contrary to popular belief, hemorrhage does not lead to hypovolemia and is not the cause of death (total blood loss is minimal except during labor). Instead, death occurs due to multiple organ dysfunction syndrome (MODS) due to fluid redistri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ravn Virus
Ravn virus (; RAVV) is a close relative of Marburg virus (MARV). RAVV causes Marburg virus disease in humans and nonhuman primates, a form of viral hemorrhagic fever. RAVV is a Select agent, World Health Organization Risk Group 4 Pathogen (requiring Biosafety Level 4-equivalent containment), National Institutes of Health/National Institute of Allergy and Infectious Diseases Category A Priority Pathogen, Centers for Disease Control and Prevention Category A Bioterrorism Agent, and listed as a Biological Agent for Export Control by the Australia Group. Use of term Ravn virus (today abbreviated RAVV, but then considered identical to Marburg virus) was first described in 1987 and is named after a 15-year old Danish boy who fell ill and died from it. Today, the virus is classified as one of two members of the species '' Marburg marburgvirus'', which is included into the genus ''Marburgvirus'', family ''Filoviridae'', order ''Mononegavirales''. The name Ravn virus is derived from '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marburg Virus
Marburg virus (MARV) is a hemorrhagic fever virus of the ''Filoviridae'' family of viruses and a member of the species '' Marburg marburgvirus'', genus ''Marburgvirus''. It causes Marburg virus disease in primates, a form of viral hemorrhagic fever. The virus is considered to be extremely dangerous. The World Health Organization (WHO) rates it as a Risk Group 4 Pathogen (requiring biosafety level 4-equivalent containment). In the United States, the National Institute of Allergy and Infectious Diseases ranks it as a Category A Priority Pathogen and the Centers for Disease Control and Prevention lists it as a Category A Bioterrorism Agent. It is also listed as a biological agent for export control by the Australia Group. The virus can be transmitted by exposure to one species of fruit bats or it can be transmitted between people via body fluids through unprotected sex and broken skin. The disease can cause haemorrhage, fever, and other symptoms similar to Ebola, which belongs t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Run-of-the-river Hydroelectricity
Run-of-river hydroelectricity (ROR) or run-of-the-river hydroelectricity is a type of hydroelectric generation plant whereby little or no water storage is provided. Run-of-the-river power plants may have no water storage at all or a limited amount of storage, in which case the storage reservoir is referred to as pondage. A plant without pondage is subject to seasonal river flows, thus the plant will operate as an intermittent energy source. Conventional hydro uses reservoirs, which regulate water for flood control, dispatchable electrical power, and the provision of fresh water for agriculture. Concept Run-of-the-river, or ROR, hydroelectricity is considered ideal for streams or rivers that can sustain a minimum flow or those regulated by a lake or reservoir upstream. A small dam is usually built to create a headpond ensuring that there is enough water entering the penstock pipes that lead to the turbines, which are at a lower elevation. Projects with pondage, as opposed to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nzoro River
The Nzoro River (or Nzaro, Obi, Zoro) is a river in the Democratic Republic of the Congo. It is a right tributary of the Kibali River. It is used to supply hydroelectric power to the Kibali Gold Mine. Course The Nzoro River originates in the extreme northeast of the country, near where the border with South Sudan joins the border with Uganda. It follows a meandering course in a generally west direction to its junction with the Kibali downstream from Durba. The Köppen climate classification is Aw: Tropical savanna climate, Tropical savanna, wet. Human impact The Logo people and Lugbara people live in the river basin. In 1891 Guillaume Van Kerkhoven, and Jules Milz travelled from Bumba, Democratic Republic of the Congo, Bumba up the Itimbiri River, Itimbiri and Likati River, Likati, rivers, then overland to the Uele River in the region of Djabir. They then explored the Kibali River, Kibali and the Zoro. They reached the Nile, but had to retreat to the Dungu, Democratic Republic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Randgold Resources
Randgold Resources is a gold mining business operating mainly in Mali. Headquartered in Jersey, Channel Islands, it was listed on the London and the NASDAQ stock exchanges until it merged with Barrick Gold in December 2018. History The company was established in 1995 and was first listed on the London Stock Exchange in 1997. In 2000 it commissioned the Morila mine and in 2005 commissioned the Loulo mine. In September 2018, Randgold announced a share-to-share merger with Canada's Barrick Gold Corp in a deal worth $18.3 billion. According to this deal, Randgold Resources investors will hold 33% of the combined company. The transaction was completed in December 2018. Operations The company's activities are concentrated on the following mines: * Morila Gold Mine, Mali * Loulo-Gounkoto mine complex, Mali * Tongon Mine, Côte d'Ivoire * Kibali Gold Mine, Democratic Republic of Congo (DRC) Additional projects are Massawa in Senegal but exploration operations are predominantly underta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moto Goldmines
Gold deposits at Moto were initially discovered in 1903 and mining began in 1905. A colonial state corporation called Kilo-Moto exploited the deposits from 1905 to 1919. The colonial state recruited laborers from rural Africa to work in the mines. In 1919, Kilo-Moto became organized as an autonomous colonial state corporation with a Board of Directors in Brussels appointed by the Minister of the colonies. This company operated as a private corporation starting in 1926 and survived the handover to independent Congolese rule in 1961, but was taken over by the Zairian state in 1967. The archives of the company up to 1967 are still stored in Brussels. Moto Goldmines Limited was a gold exploration and mining company with operations in the Kilo-Moto greenstone belt in Haut-Uele Province in the northeast of the Democratic Republic of the Congo. The company's stock was listed on the Toronto Stock Exchange and the London Stock Exchange’s Alternative Investment Market. Moto Goldmines was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AngloGold Ashanti
AngloGold Ashanti Limited is a global gold mining company. It was formed in 2004 by the merger of AngloGold and the Ashanti Goldfields Corporation. It is now a global gold producer with 21 operations on four continents. The company is listed on the New York, Johannesburg, Accra, London and Australian stock exchanges, as well as the Paris and Brussels bourses. In 2008, AngloGold produced 4.98 million ounces of gold from its operations, estimated to be seven percent of the global production. In 2009, the company's gold output dropped to 4.6 million ounces. As of the third quarter of 2014, Anglogold was the world's third-largest producer of gold, behind Barrick Gold and Newmont Mining. The company is claimed to be the 'most sophisticated and technologically advanced' mining operations with strict adherence to safety regulations. History AngloGold Ashanti was formed on 26 April 2004, after the High Court of Ghana approved the merger of AngloGold and the Ashanti Goldfie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Barrick Gold
Barrick Gold Corporation is a mining company that produces gold and copper with 16 operating sites in 13 countries. It is headquartered in Toronto, Ontario, Canada. It has mining operations in Argentina, Canada, Chile, Côte d'Ivoire, Democratic Republic of the Congo, Dominican Republic, Mali, Papua New Guinea, Saudi Arabia, Tanzania, the United States and Zambia. In 2019, it produced 5.5 million ounces of gold at all-in sustaining costs of $894/ounce and 432 million pounds of copper at all-in sustaining costs of $2.52/pound. the company had 71 million ounces of proven and probable gold reserves. Barrick has met or beaten market consensus on its financial and operating results for eleven consecutive quarters as of Q3 2021. Barrick had been the world's largest gold mining company until Newmont Corporation acquired Goldcorp in 2019. Barrick expects to produce between 4.6 and five million ounces of gold and between 440 and 500 million pounds of copper in 2020. Chief executive Ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Congo Free State
''(Work and Progress) , national_anthem = Vers l'avenir , capital = Vivi Boma , currency = Congo Free State franc , religion = Catholicism (''de facto'') , leader1 = Leopold II of Belgium , year_leader1 = 1885–1908 , title_leader = Sovereign , representative1 = F. W. de Winton , year_representative1 = 1885–1886 , representative2 = Théophile Wahis , year_representative2 = 1900–1908 , title_representative = Governor-General , today = Democratic Republic of the Congo , demonym = , area_km2 = 2,345,409 , area_rank = , percent_water = 3.32 , population_estimate = 9,130,000 , population_estimate_year = 1907 , population_density_km2 = 3.8 , GDP_PPP = , GDP_PPP_year = , HDI = , HDI_year = The Congo Free State, al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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