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Cuajone Mine
The Cuajone mine is a large copper mine located in the south of Peru in Moquegua Region. Cuajone represents one of the largest copper reserve in Peru and in the world having estimated reserves of 1.6 billion tonnes of ore grading 0.57% copper. The mine has resulted in an environmental conflict, because local residents say that the mine pollutes the environment without providing economic benefits. In February, 2022 local residents blockaded rail access to the mine and cut its water supply, demanding $5 billion in compensation and 5% of the mine's profits. Geology The porphyry copper deposit and hypogene mineralization occurred in the Early Eocene. Supergene sulfide enrichment began in the Late Oligocene and continued until the Early Miocene. Chalcocite is the more common copper ore mineral as massive assemblages. See also *Toquepala mine *Quellaveco mine *Yanacocha * Cerro de Pasco * Huancavelica * List of mines in Peru * Zinc mining Zinc mining is the process by whic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moquegua Region
Moquegua () is a department and region in southern Peru that extends from the coast to the highlands. Its capital is the city of Moquegua, which is among the main Peruvian cities for its high rates of GDP and national education. Geography The department's volcanoes and its geomorphology make its geography remarkable. It is formed by upstream portion of the Tambo River, one of the most torrential coastal rivers, which forms deep valleys that can be divided into three sectors, the first one being in the northwest, forming the Puquina-La Capilla sector. These are veritable oasis enclaved in the rocks; arid hillsides and some terraces where horticulture is possible. High quality alfalfa as well as fruits, especially grapes, are produced here, due to a good climate and a rich soil. The second sector is the valley of Omate, one of the most populated and fertile soils of the department. The Ubinas Volcano, Peru's most active volcano, is located nearby. In the hillsides, the land is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Early Miocene
The Early Miocene (also known as Lower Miocene) is a sub-epoch of the Miocene Epoch made up of two stages: the Aquitanian and Burdigalian stages. The sub-epoch lasted from 23.03 ± 0.05 Ma to 15.97 ± 0.05 Ma (million years ago). It was preceded by the Oligocene epoch. As the climate started to get cooler, the landscape started to change. New mammals evolved to replace the extinct animals of the Oligocene epoch. The first members of the hyena and weasel family started to evolve to replace the extinct '' Hyaenodon'', entelodonts and bear-dogs. The chalicotheres survived the Oligocene epoch. A new genus of entelodont called '' Daeodon'' evolved in order to adapt to the new habitats and hunt the new prey animals of the Early Miocene epoch; it quickly became the top predator of North America. But it became extinct due to competition from ''Amphicyon ''Amphicyon'' ("ambiguous dog") is an extinct genus of large carnivorous bone-crushing mammals, popularly known as bear dogs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zinc Mining
Zinc mining is the process by which mineral forms of the metal zinc are extracted from the earth through mining. A zinc mine is a mine that produces zinc minerals in ore as its primary product. Common co-products in zinc ores include minerals of lead and silver. Other mines may produce zinc minerals as a by-product of the production of ores containing more valuable minerals or metals, such as gold, silver or copper. Mined ore is processed, usually on site, to produce one or more metal-rich concentrates, then transported to a zinc smelter for production of zinc metal. Global zinc mine production in 2020 was estimated to be 12 million tonnes. The largest producers were China (35%), Australia (12%), Peru (10%), India (6.0%), United States (5.6%) and Mexico (5.0%), with Australia having the largest reserves. The world's largest zinc mine is the Red Dog open-pit zinc-lead-silver mine in Alaska, with 4.2% of world production. Major zinc mine operators include Vedanta Reso ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Huancavelica
Huancavelica () or Wankawillka in Quechua is a city in Peru. It is the capital of the department of Huancavelica and according to the 2017 census had a population of 49,570 people. The city was established on August 5, 1572 by the Viceroy of Peru Francisco de Toledo. Indigenous peoples represent a major percentage of the population. It has an approximate altitude of 3,676 meters; the climate is cold and dry between the months of February and August with a rainy season between September and January. It is considered one of the poorest cities in Peru. Geography The Huancavelica area features a rough geography with highly varied elevation, from 1,950 metres in the valleys to more than 5,000 metres on its snow-covered summits. These mountains contain metallic deposits. They consist of the western chain of the Andes, which includes the Chunta mountain range, formed by a series of hills, the most prominent of which are: Sitaq (5,328m), Wamanrasu (5,298m) and Altar (5,268 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cerro De Pasco
Cerro de Pasco is a city in central Peru, located at the top of the Andean mountains. It is the capital of the Pasco region, and an important mining center. At elevation, it is one of the highest cities in the world, and the highest or the second highest city with over 50,000 inhabitants, with elevation reaching up to in the Yanacancha area. It is connected by road and by rail to the capital Lima, away. Mining center Cerro de Pasco became one of the world's richest silver producing areas after silver was discovered there in 1630. It is still an active mining center. The Spanish mined the rich Cerro de Pasco silver-bearing oxide ore deposits since colonial times. Sulfide minerals are more common in the Atacocha district however. Francisco Uville arranged for steam engines made by Richard Trevithick of Cornwall, England, to be installed in Cerro de Pasco in 1816 to pump water from the mines and allow lower levels to be reached. However, fighting in the Peruvian War of I ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yanacocha
Yanacocha (Cajamarca Quechua: ''yana'' = "black, dark", ''qucha'' = "lake, puddle, pond, lagoon") is a gold mine in the Cajamarca region of the Northern Highlands of Peru. Considered to be the fourth largest gold mine in the world, it produced 0.97 million ounces of gold in 2014.Vladimir Basov (16 June 2015The world’s top 10 gold minesGold mining.com The 251-square kilometer open pit mine is situated about 30 kilometers (14 km straight line) north of Cajamarca, in high pampa, straddling the watershed. The operation is a joint venture between Newmont Goldcorp (51.35% ownership), Compañia de Minas Buenaventura (43.65%) and the International Finance Corporation (5%). Mercury spilled by the mining company has poisoned hundreds of people living near the mine and contaminated local water sources. Thousands of local residents have protested the mine in an environmental conflict that also includes ongoing lawsuits against the mining companies. Environmental defenders opposin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quellaveco Mine
The Quellaveco mine is a large copper mine project located in the south of Peru in the Moquegua Region. It is undergoing government environment approvals for its Environmental Impact Assessment. The last EIA modification was submitted in 2014. The Quellaveco mining property is majority–owned by Anglo American. Quellaveco represents one of the largest copper reserves in Peru and in the world, having estimated reserves of 1.1 billion tonnes of ore grading 0.55% copper. The planned development of the mine estimates a processing capacity of 85000 metric tonnes per day. Fluor Corporation has been assigned as the EPCM contractor for this project. The mine is due to begin production in 2022 after an investment of approximately $5bn. In late 2019 it was reported the mine was 34% complete and was on schedule. However, in the 2020 Pandemic, a three-month hold was declared on the project with a reduction in Capital expenditure for that year in the order of $300 million. By late 2020 it was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Toquepala Mine
The Toquepala mine is a large porphyry copper mine in the Tacna Province, Tacna Department, Peru. The mine is an open-pit mine producing copper, molybdenum, rhenium and silver with minor gold and zinc. The Toquepala mine and the Ilo smelter were opened in 1960 by Southern Peru Copper Corporation, then a subsidiary of ASARCO. A Solvent extraction/electrowinning (SX/EW) facility was added in 1995. ASARCO's stake in Southern Peru Copper, now 54.2%, passed to Grupo Mexico, when that company purchased ASARCO in 1999. The mine and smelter are now operated by Southern Copper Corporation, a subsidiary of Grupo Mexico. In 2009, Toquepala produced about 127,000 tons of copper in sulfide concentrates, all smelted at Ilo, with a copper recovery of 97.4%. Toquepala also produced 38,000 tons of copper cathodes from the SX/EW plant. As of the end of 2009, Toquepala reported about 13 million tons of contained copper metal in proven and probable ore reserves, at an average grade of 0.47% Cu. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chalcocite
Chalcocite (), copper(I) sulfide (Cu2S), is an important copper ore mineral. It is opaque and dark gray to black, with a metallic luster. It has a hardness of 2.5–3 on the Mohs scale. It is a sulfide with a monoclinic crystal system. The term ''chalcocite'' comes from the alteration of the obsolete name ''chalcosine'', from the Greek ''khalkos'', meaning "copper". It is also known as redruthite, vitreous copper, or copper-glance. Occurrence Chalcocite is sometimes found as a primary vein mineral in hydrothermal veins. However, most chalcocite occurs in the supergene enriched environment below the oxidation zone of copper deposits as a result of the leaching of copper from the oxidized minerals. It is also often found in sedimentary rocks. It has been mined for centuries and is one of the most profitable copper ores. The reasons for this is its high copper content (66.7% atomic ratio and nearly 80% by weight) and the ease at which copper can be separated from sulfur. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Late Oligocene
The Chattian is, in the geologic timescale, the younger of two ages or upper of two stages of the Oligocene Epoch/ Series. It spans the time between . The Chattian is preceded by the Rupelian and is followed by the Aquitanian (the lowest stage of the Miocene). Stratigraphic definition The Chattian was introduced by Austrian palaeontologist Theodor Fuchs in 1894. Fuchs named the stage after the Chatti, a Germanic tribe.Berry, Edward W"The Mayence Basin, a Chapter of Geologic History" '' The Scientific Monthly'', Vol. 16, No. 2, February 1923. pp. 114. Retrieved March 18, 2020. The original type locality was near the German city of Kassel. The base of the Chattian is at the extinction of the foram genus ''Chiloguembelina'' (which is also the base of foram biozone P21b). An official GSSP for the Chattian Stage was ratified in October of 2016. The top of the Chattian Stage (which is the base of the Aquitanian Stage, Miocene Series and Neogene System) is at the first appeara ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peru
, image_flag = Flag of Peru.svg , image_coat = Escudo nacional del Perú.svg , other_symbol = Great Seal of the State , other_symbol_type = Seal (emblem), National seal , national_motto = "Firm and Happy for the Union" , national_anthem = "National Anthem of Peru" , march = "March of Flags" , image_map = PER orthographic.svg , map_caption = , image_map2 = , capital = Lima , coordinates = , largest_city = capital , official_languages = Peruvian Spanish, Spanish , languages_type = Co-official languages , languages = , ethnic_groups = , ethnic_groups_year = 2017 , demonym = Peruvians, Peruvian , government_type = Unitary state, Unitary Semi-presidential system, semi-presidential republic , leader_title1 = President of Peru, President ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
