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Acalypha Dikuluwensis
''Acalypha dikuluwensis'' was a high tropical flowering plant in the genus '' Acalypha'' of the family Euphorbiaceae. The IUCN Red List of Threatened Species declared the plant extinct in 2012. ''A. dikuluwensis'' was endemic to copper-rich soils of eastern Katanga Province of the Democratic Republic of the Congo, and was only found around Dikuluwe. The soils are derived from Katanga Supergroup Upper Cambrian Roan Group rocks. It was restricted to steppic savanna in copper outcrops, which were destroyed by surface mining Surface mining, including strip mining, open-pit mining and mountaintop removal mining, is a broad category of mining in which soil and rock overlying the mineral deposit (the overburden) are removed, in contrast to underground mining, in which .... No specimens were found after 1959. References External linksAcalypha dikuluwensis in Global Plants Extinct plants dikuluwensis Endemic flora of the Democratic Republic of the Congo {{Euphorb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paul Auguste Duvigneaud
Paul may refer to: * Paul (given name), a given name (includes a list of people with that name) * Paul (surname), a list of people People Christianity *Paul the Apostle (AD c.5–c.64/65), also known as Saul of Tarsus or Saint Paul, early Christian missionary and writer * Pope Paul (other), multiple Popes of the Roman Catholic Church * Saint Paul (other), multiple other people and locations named "Saint Paul" Roman and Byzantine empire * Lucius Aemilius Paullus Macedonicus (c. 229 BC – 160 BC), Roman general * Julius Paulus Prudentissimus (), Roman jurist * Paulus Catena (died 362), Roman notary * Paulus Alexandrinus (4th century), Hellenistic astrologer * Paul of Aegina or Paulus Aegineta (625–690), Greek surgeon Royals *Paul I of Russia (1754–1801), Tsar of Russia * Paul of Greece (1901–1964), King of Greece Other people *Paul the Deacon or Paulus Diaconus (c. 720 – c. 799), Italian Benedictine monk *Paul (father of Maurice), the father of Maur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Katanga Province
Katanga was one of the four large provinces created in the Belgian Congo in 1914. It was one of the eleven provinces of the Democratic Republic of the Congo between 1966 and 2015, when it was split into the Tanganyika Province, Tanganyika, Haut-Lomami, Lualaba Province, Lualaba, and Haut-Katanga provinces. Between 1971 and 1997 (during the rule of Mobutu Sese Seko when Congo was known as Zaire), its official name was Shaba Province. Katanga's area encompassed . Farming and ranching are carried out on the Katanga Plateau. The eastern part of the province is considered to be a rich mining region, which supplies cobalt, copper, tin, radium, uranium, and diamonds. The region's former capital, Lubumbashi, is the second-largest city in the Congo. History Copper mining in Katanga dates back over 1,000 years, and mines in the region were producing standard-sized ingots of copper for international transport by the end of the 10th century CE. In the 1890s, the province was beleaguered ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Surface Mining
Surface mining, including strip mining, open-pit mining and mountaintop removal mining, is a broad category of mining in which soil and rock overlying the mineral deposit (the overburden) are removed, in contrast to underground mining, in which the overlying rock is left in place, and the mineral is removed through shafts or tunnels. In North America, where the majority of surface coal mining occurs, this method began to be used in the mid-16th century and is practiced throughout the world in the mining of many different minerals. In North America, surface mining gained popularity throughout the 20th century, and surface mines now produce most of the coal mined in the United States. In most forms of surface mining, heavy equipment, such as earthmovers, first remove the overburden. Next, large machines, such as dragline excavators or bucket-wheel excavators, extract the mineral. The pros of surface mining are that it has a lower financial cost and is a lot safer than undergrou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Roan Group
Roan may refer to: Animals * Roan (color), a type of animal coat color that shows intermixed white and darker-colored hairs *Roan (horse), a horse coat color pattern *Varnish roan, a leopard-complex horse coat color that looks similar to roan * Roan antelope, an African savanna antelope *Roan Allen (1904–1930), one of the founding sires of the Tennessee Walking Horse People *Roan (name), a personal name and surname *Samuel Roan (born 1947), a Scottish Football Player for Rafe Rovers *Samuel Gibaon Roan (born 1925), a Scottish Champion Angler who was disabled from the waist down *Charles H. Roan (1923—1944), a United States Marine who participated in the landing on Peleliu during World War II *Dan Roan (born 1976), a sports editor for BBC News *John Roan, a landowner in Greenwich, London who left his estate for the founding of the John Roan School *John Roan (bishop) (died 1692), a Church of Ireland Bishop of Killaloe * Michael Roan (born 1972), a former professional America ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cambrian
The Cambrian Period ( ; sometimes symbolized C with bar, Ꞓ) was the first geological period of the Paleozoic Era, and of the Phanerozoic Eon. The Cambrian lasted 53.4 million years from the end of the preceding Ediacaran Period 538.8 million years ago (mya) to the beginning of the Ordovician Period mya. Its subdivisions, and its base, are somewhat in flux. The period was established as "Cambrian series" by Adam Sedgwick, who named it after Cambria, the Latin name for 'Cymru' (Wales), where Britain's Cambrian rocks are best exposed. Sedgwick identified the layer as part of his task, along with Roderick Murchison, to subdivide the large "Transition Series", although the two geologists disagreed for a while on the appropriate categorization. The Cambrian is unique in its unusually high proportion of sedimentary deposits, sites of exceptional preservation where "soft" parts of organisms are preserved as well as their more resistant shells. As a result, our understanding of the Ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Katanga Supergroup
The Katanga Supergroup is a Neoproterozoic sequence of geological formations found in central Africa. The formation is well-studied for its rich stratiform copper-cobalt deposits mined extensively in from the Central African Copperbelt in Zambia and the Democratic Republic of the Congo. Particularly rich outcrops of the Roan Group of the supergroup occur in eastern Katanga Province of the Democratic Republic of the Congo where open-pit copper mining has occurred. The Katanga Supergroup nonconformably overlies the 883 Ma Nchanga Granite. The Katangan Supergroup is divided into four metasedimentary series, from the oldest siliclastic and dolomitic Roan Group conglomerates, sandstones, and shales, to Nguba Group of mostly carbonates and carbon-rich shales, to the youngest, upper most Kundelungu Group including glacial metasediments and a cap carbonate. The Katanga Supergroup correlates with rocks of the Makuti Group in other parts of the Democratic Republic of Congo. Min ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dikuluwe Mine
The Dikuluwe Mine (French: ''Mine de Dikuluwe'') is a copper and cobalt mine near Kolwezi in Lualaba Province of the Democratic Republic of the Congo. Dikuluwe is the westernmost of the Dima Pit group, with Mashamba West and Mashamba East. The quarry was opened in 1975 and was planned to be connected to the nearby Mashamba West pit. The combined Dikuluwe and Mashamba West deposits are now run by La Sino-Congolaise des Mines SA (Sicomines), a joint venture majority owned by a Chinese consortium, with Gécamines holding a minority stake. Katanga Mining had the license to mine copper ore in the mine, but was not planning to open it for production until 2023. Sicomines reorganization On September 17, 2007 a memorandum of understanding was drawn up between a Chinese consortium headed by China Railway and the Congolese state, represented by Pierre Lumbi. This agreement concerned $6.565 billion in infrastructure, but did not specify the amount of investment in the mining concessions. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Democratic Republic Of The Congo
The Democratic Republic of the Congo (french: République démocratique du Congo (RDC), colloquially "La RDC" ), informally Congo-Kinshasa, DR Congo, the DRC, the DROC, or the Congo, and formerly and also colloquially Zaire, is a country in Central Africa. It is bordered to the northwest by the Republic of the Congo, to the north by the Central African Republic, to the northeast by South Sudan, to the east by Uganda, Rwanda, and Burundi, and by Tanzania (across Lake Tanganyika), to the south and southeast by Zambia, to the southwest by Angola, and to the west by the South Atlantic Ocean and the Cabinda exclave of Angola. By area, it is the second-largest country in Africa and the 11th-largest in the world. With a population of around 108 million, the Democratic Republic of the Congo is the most populous officially Francophone country in the world. The national capital and largest city is Kinshasa, which is also the nation's economic center. Centered on the Cong ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Copper
Copper is a chemical element with the symbol Cu (from la, cuprum) and atomic number 29. It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. A freshly exposed surface of pure copper has a pinkish-orange color. Copper is used as a conductor of heat and electricity, as a building material, and as a constituent of various metal alloys, such as sterling silver used in jewelry, cupronickel used to make marine hardware and coins, and constantan used in strain gauges and thermocouples for temperature measurement. Copper is one of the few metals that can occur in nature in a directly usable metallic form ( native metals). This led to very early human use in several regions, from circa 8000 BC. Thousands of years later, it was the first metal to be smelted from sulfide ores, circa 5000 BC; the first metal to be cast into a shape in a mold, c. 4000 BC; and the first metal to be purposely alloyed with another metal, tin, to create ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jeanine Dewit
Jeanine is a given name. Notable people with the name include: *Jeanine Áñez (born 1967), Bolivian politician and lawyer who served as Interim President of Bolivia from 2019 to 2020 *Jeanine Bapst (born 1968), Swiss ski mountaineer *Jeanine Basinger (born 1936), Corwin-Fuller Professor of Film Studies at Wesleyan University, Middletown, Connecticut *Jeanine Cicognini (born 1986), badminton player *Jeanine Corbet, American filmmaker *Jeanine Delpech (1905–1992), French journalist, translator, novelist * Jeanine Hennis-Plasschaert (born 1973), Dutch politician and former management consultant and civil servant *Jeanine Mason (born 1991), American dancer and winner of ''So You Think You Can Dance'' 2009 * Jeanine Meerapfel (born 1943), German film director and screenwriter *Jeanine Menze the first African-American female in the United States Coast Guard to earn the Coast Guard Aviation Designation * Jeanine Perry, former member of the Ohio House of Representatives, succeeded by Matt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IUCN Red List
The International Union for Conservation of Nature (IUCN) Red List of Threatened Species, also known as the IUCN Red List or Red Data Book, founded in 1964, is the world's most comprehensive inventory of the global conservation status of biological species. It uses a set of precise criteria to evaluate the extinction risk of thousands of species and subspecies. These criteria are relevant to all species and all regions of the world. With its strong scientific base, the IUCN Red List is recognized as the most authoritative guide to the status of biological diversity. A series of Regional Red Lists are produced by countries or organizations, which assess the risk of extinction to species within a political management unit. The aim of the IUCN Red List is to convey the urgency of conservation issues to the public and policy makers, as well as help the international community to reduce species extinction. According to IUCN the formally stated goals of the Red List are to provi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Euphorbiaceae
Euphorbiaceae, the spurge family, is a large family of flowering plants. In English, they are also commonly called euphorbias, which is also the name of a genus in the family. Most spurges, such as ''Euphorbia paralias'', are herbs, but some, especially in the tropics, are shrubs or trees, such as ''Hevea brasiliensis''. Some, such as ''Euphorbia canariensis'', are succulent and resemble cacti because of convergent evolution. This family has a cosmopolitan global distribution. The greatest diversity of species is in the tropics, however, the Euphorbiaceae also have many species in nontropical areas of all continents except Antarctica. Description The leaves are alternate, seldom opposite, with stipules. They are mainly simple, but where compound, are always palmate, never pinnate. Stipules may be reduced to hairs, glands, or spines, or in succulent species are sometimes absent. The plants can be monoecious or dioecious. The radially symmetrical flowers are unisexual, w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
