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Cerro Vanguardia Mine
The Cerro Vanguardia Mine is a gold and silver mine located 150 km north west of Puerto San Julián, in the Santa Cruz province of Argentina. It is majority-owned and operated by AngloGold Ashanti, which holds a 92.5% interest in the min The remaining 7.5% are owned by ''Formicruz'' (''Fomento Minero de Santa Cruz Sociedad del Estado''), a company owned by the province of Santa Cruz.AngloGold Ashanti: Country report Argentina accessed: 14 July 2010 In 2008, the mine contributed 3% to the company's annual production and employs in excess of 1,000 people. The Cerro Vanguardia mine consists of a number of small open pits. geolog ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Puerto San Julián
Puerto San Julián, also known historically as Port St. Julian, is a natural harbour in Patagonia in the Santa Cruz Province of Argentina located at . In the days of sailing ships it formed a stopping point, south of Puerto Deseado (''Port Desire''). Nowadays Puerto San Julián is also the name of a small town (population 6,143 as per the ) located on the harbour. History It was given its name by the Portuguese explorer Ferdinand Magellan who arrived there on 31 March 1520 and overwintered in the harbour. They met the native people who were described by Antonio Pigafetta as giants, and called them ''Patagonians''. Although Pigafetta's account does not describe how this name came about, subsequent popular interpretations gave credence to a derivation meaning 'land of the big feet'. However, this etymology is questionable. The term is most likely derived from an actual character name, "''Patagón''", a savage creature confronted by Primaleón of Greece, the hero in the Spanish chiv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deseado Massif
The Deseado Massif (Spanish: ''Macizo del Deseado'') is a massif in southern Patagonia located in the Argentine province of Santa Cruz. On surface the massif is made up of Middle to Late Jurassic-aged felsic volcanic rocks. Analysis of mantle xenoliths reveals that the lithospheric mantle of the Deseado Massif is about 2100 to 1000 million years old. As such the Deseado Massif is one of the oldest regions of Patagonia as it existed in some form during the Paleo and Mesoproterozoic. In the Neoproterozoic the Deseado Massif together with the Falkland Islands formed part of the supercontinent Rodinia. Since then Deseado Massif has been next to the Falkland Islands. The eastern sector of the Deseado Massif contains a Jurassic caldera with a zircon U–Pb eruption age of 178.7 ± 1.9 million years. Economic geology The Deseado Massif contains valuable epithermal gold deposits. The richness of Deseado Massif in gold may stem from its ancient and enriched mantle lithosphere A mant ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Open-pit Mines
Open-pit mining, also known as open-cast or open-cut mining and in larger contexts mega-mining, is a surface mining technique of extracting rock or minerals from the earth from an open-air pit, sometimes known as a borrow. This form of mining differs from extractive methods that require tunnelling into the earth, such as long wall mining. Open-pit mines are used when deposits of commercially useful ore or rocks are found near the surface. It is applied to ore or rocks found at the surface because the overburden is relatively thin or the material of interest is structurally unsuitable for tunnelling (as would be the case for cinder, sand, and gravel). In contrast, minerals that have been found underground but are difficult to retrieve due to hard rock, can be reached using a form of underground mining. To create an open-pit mine, the miners must determine the information of the ore that is underground. This is done through drilling of probe holes in the ground, then plotting eac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mines In Santa Cruz Province, Argentina
Mine, mines, miners or mining may refer to: Extraction or digging *Miner, a person engaged in mining or digging *Mining, extraction of mineral resources from the ground through a mine Grammar *Mine, a first-person English possessive pronoun Military * Anti-tank mine, a land mine made for use against armored vehicles * Antipersonnel mine, a land mine targeting people walking around, either with explosives or poison gas * Bangalore mine, colloquial name for the Bangalore torpedo, a man-portable explosive device for clearing a path through wire obstacles and land mines * Cluster bomb, an aerial bomb which releases many small submunitions, which often act as mines * Land mine, explosive mines placed under or on the ground * Mining (military), digging under a fortified military position to penetrate its defenses * Naval mine, or sea mine, a mine at sea, either floating or on the sea bed, often dropped via parachute from aircraft, or otherwise lain by surface ships or submarines * Par ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gold Mines In Argentina
Gold is a chemical element with the symbol Au (from la, aurum) and atomic number 79. This makes it one of the higher atomic number elements that occur naturally. It is a bright, slightly orange-yellow, dense, soft, malleable, and ductile metal in a pure form. Chemically, gold is a transition 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 ( native state), as nuggets or grains, in rocks, veins, and alluvial deposits. It occurs in a solid solution series with the native element silver (as electrum), naturally alloyed with other metals like copper and palladium, and mineral inclusions such as within pyrite. Less commonly, it occurs in minerals as gold compounds, often with tellurium (gold tellurides). Gold is resistant to most acids, though it does dissolve in aqua regia (a mixture of nitric acid and hydrochloric acid), forming a soluble tetrachloroaurate anion. Gold is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anglo American PLC
Anglo American plc is a British listed multinational mining company with headquarters in London, England. It is the world's largest producer of platinum, with around 40% of world output, as well as being a major producer of diamonds, copper, nickel, iron ore and steelmaking coal. The company has operations in Africa, Asia, Australia, Europe, North America and South America. Anglo American has a primary listing on the London Stock Exchange and is a constituent of the FTSE 100 Index. The company has a secondary listing on the Johannesburg Stock Exchange. In the 2020 Forbes Global 2000, Anglo American was ranked as the 274th -largest public company in the world. History 1917–1990 Sir Ernest Oppenheimer, a Jewish German émigré, founded the Anglo American Corporation (AAC) in 1917 in Johannesburg, South Africa, with financial backing from the American bank J.P. Morgan & Co. and £1 million raised from UK and US sources to start the gold mining company; this fact is refle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pérez Companc S
Pérez, or Perez as most commonly written in English, is a Castilian Spanish surname. Perez (pronounced Peretz, see below) is also common in people of Sephardic Jewish descent and is the 4th most common surname in Israel, most common surname not of Hebrew origin and most common surname exclusive to a single Jewish ethnic division. Origins The surname with Spanish origins, written in Spanish orthography as , is a patronymic surname meaning "son of Pero or Pedro (Peter)". The surname has a Portuguese counterpart with the same meaning and etymology, Peres, written with a final "s" instead of "z" and without the accent. The surname with a Hebrew origin is transliterated into English as either Perez or Peretz, and is derived from the Hebrew given name פרץ (cf. ), after the biblical character Perez (son of Judah), which in Hebrew means "to breach" or "to burst forth". That biblical character's Hebrew name, however, is transliterated as Farés in the Spanish Christian Bible. Neithe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Journal Of South American Earth Sciences
The ''Journal of South American Earth Sciences'' is a peer-reviewed scientific journal published by Elsevier. It covers the earth sciences, primarily on issues that are relevant to South America, Central America, the Caribbean, Mexico, and Antarctica. The journal was established in 1988 and the editor-in-chief is James Kellogg ( University of South Carolina). According to the ''Journal Citation Reports'', the journal has a 2012 impact factor of 1.533. See also *''Ameghiniana'' *''Andean Geology'' *''Brazilian Journal of Geology'' *''Latin American Journal of Sedimentology and Basin Analysis'' *''Revista de la Asociación Geológica Argentina The ''Revista de la Asociación Geológica Argentina'' is an open access peer-reviewed scientific journal published by the Asociación Geológica Argentina. The journal is released under a CC-BY-NC 2.5 license. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geology
Geology () is a branch of natural science concerned with Earth and other astronomical objects, the features or rocks of which it is composed, and the processes by which they change over time. Modern geology significantly overlaps all other Earth sciences, including hydrology, and so is treated as one major aspect of integrated Earth system science and planetary science. Geology describes the structure of the Earth on and beneath its surface, and the processes that have shaped that structure. It also provides tools to determine the relative and absolute ages of rocks found in a given location, and also to describe the histories of those rocks. By combining these tools, geologists are able to chronicle the geological history of the Earth as a whole, and also to demonstrate the age of the Earth. Geology provides the primary evidence for plate tectonics, the evolutionary history of life, and the Earth's past climates. Geologists broadly study the properties and processes of E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Provinces Of Argentina
Argentina is subdivided into twenty-three federated states called provinces ( es, provincias, singular ''provincia'') and one called the autonomous city (''ciudad autónoma'') of Buenos Aires, which is the federal capital of the republic ( es, Capital Federal, links=no) as decided by the National Congress of Argentina, Argentine Congress. The provinces and the capital have their own constitutions, and exist under a federalism, federal system. History During the Argentine War of Independence, War of Independence the main cities and their surrounding countrysides became provinces though the intervention of their Cabildo (council), ''cabildos''. The Anarchy of the Year XX completed this process, shaping the original thirteen provinces. Jujuy Province, Jujuy seceded from Salta Province, Salta in 1834, and the thirteen provinces became fourteen. After seceding for a decade, Buenos Aires Province accepted the 1853 Constitution of Argentina in 1861, and its capital city was made ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Silver
Silver is a chemical element with the Symbol (chemistry), symbol Ag (from the Latin ', derived from the Proto-Indo-European wikt:Reconstruction:Proto-Indo-European/h₂erǵ-, ''h₂erǵ'': "shiny" or "white") and atomic number 47. A soft, white, lustrous transition metal, it exhibits the highest electrical conductivity, thermal conductivity, and reflectivity of any metal. The metal is found in the Earth's crust in the pure, free elemental form ("native silver"), as an alloy with gold and other metals, and in minerals such as argentite and chlorargyrite. Most silver is produced as a byproduct of copper, gold, lead, and zinc Refining (metallurgy), refining. Silver has long been valued as a precious metal. Silver metal is used in many bullion coins, sometimes bimetallism, alongside gold: while it is more abundant than gold, it is much less abundant as a native metal. Its purity is typically measured on a per-mille basis; a 94%-pure alloy is described as "0.940 fine". As one of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
