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La Negra Mine
La Negra mine is a silver mine in the Mexican state of Querétaro, owned by Excellon Resources. Description La Negra is a silver mine in Querétaro, Mexico. The mine has thirteen known ore bodies, overwhelmingly of silver, but also with smaller quantities of gold, zinc and lead. The mine has a processing mill that can process 3,000 tons-per-day. Tailings from the mine are held behind five tailings dams. The dams are located upstream of the Maconí River which, which after five kilometers reaches the Moctuzuma River. When active, it produced up to three-million ounces of silver-equivalent per year. In 2023, the mine had 15.1 million ounces of silver in reserves. History The mine started operating in 1970 and was owned by Industriales Peñoles S.A. de C.V. at the time. Production stopped in 2000. Aurcana Corporation became the primary owner of the mine in 2006, expanding its share of ownership to over 99% in 2012. In 2009, production of ore was 1,000 tonnes per day, in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Querétaro
Querétaro (), officially the Free and Sovereign State of Querétaro ( es, Estado Libre y Soberano de Querétaro, links=no; Otomi language, Otomi: ''Hyodi Ndämxei''), is one of the Political divisions of Mexico, 32 federal entities of Mexico. It is divided into Municipalities of Querétaro, 18 municipalities. Its capital city is Santiago de Querétaro. It is located in north-central Mexico, in a region known as Bajío. It is bordered by the states of San Luis Potosí to the north, Guanajuato to the west, Hidalgo (state), Hidalgo to the east, State of Mexico, México to the southeast and Michoacán to the southwest. The state is one of the smallest in Mexico, but also one of the most heterogeneous geographically, with ecosystems varying from deserts to tropical rainforest, especially in the Sierra Gorda, which is filled with microecosystems. The area of the state was located on the northern edge of Mesoamerica, with both the Purépecha Empire and Aztec Empire having influence in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mexican State
The states of Mexico are first-level administrative territorial entities of the country of Mexico, which is officially named Mexico, United Mexican States. There are 32 federal entities in Mexico (31 states and the capital, Mexico City, as a separate entity that is not formally a state). States are further divided into municipalities of Mexico, municipalities. Mexico City is divided in boroughs of Mexico City, boroughs, officially designated as or , similar to other state's municipalities but with different administrative powers. List ''Mexico's post agency, Correos de México, does not offer an official list of state name abbreviations, and as such, they are not included below. A list of Mexican states and several versions of their abbreviations can be found Template:Mexico State-Abbreviation Codes, here.'' } , style="text-align: center;" , ''Coahuila de Zaragoza'' , , style="text-align: center;" colspan=2 , Saltillo , style="text-align: right;" , , style="text-align ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Excellon Resources
Excellon Resources is a Canadian mining company that operates the La Platosa mine and the La Negra mine silver mines in Mexico. Organization Excellon Resources is a Canadian mining company that operates the La Platosa silver mine in La Sierrita, Mexico. In 2012, the company was led by CEO and president Brendan Cahill. In 2023, Shawn Howarth was the CEO. It is based at 10 King Street East, Toronto. Activities and history The company owns the La Platosa mine, one of Mexico's most silver rich mines. The mine operates at Durango on land owned by the Ejido La Sierrita community. The company was accused of failing to build a water treatment plant by the Ejido La Sierrita community. The community submitted two complaints to the Government of Canada including one to the Extractive Sector CSR Counsellor. In 2022, the company announced plans to close the La Platsoa mine, in the third quarter of the year, citing disputes with the worker's union and global metal prices. In 2023, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tailings Dam
A tailings dam is typically an earth-fill embankment dam used to store byproducts of mining operations after separating the ore from the gangue. Tailings can be liquid, solid, or a slurry of fine particles, and are usually highly toxic and potentially radioactive. Solid tailings are often used as part of the structure itself. Tailings dams rank among the largest engineered structures on earth. The Syncrude Mildred Lake Tailings Dyke in Alberta, Canada, is an embankment dam about long and from high. It is the largest dam structure on earth by volume, and as of 2001 it was believed to be the largest earth structure in the world by volume of fill. There are key differences between tailings dams and the more familiar hydroelectric dams. Tailings dams are designed for permanent containment, meaning they are intended to "remain there forever". Copper, gold, uranium and other mining operations produce varied kinds of waste, much of it toxic, which pose varied challenges for long-term ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moctezuma River
The Moctezuma River (Río Moctezuma) is a river in Mexico that drains the eastern side of the Trans-Mexican Volcanic Belt (Sierra Nevada). It is a tributary of the Pánuco River and flows through the Mexican states of Hidalgo, Querétaro, and San Luis Potosí. Course The Moctezuma arises in the Zimapán Dam, this reservoir is formed by the Tula and San Juan rivers which join in the reservoir to form the Moctezuma River later downstream of the dam. The Zimapán Dam,is a hydroelectric dam about 15 km southwest of the town of Zimapán. At Tamazunchale it receives the Amajac River. Below the town of Tanquián de Escobedo it forms the border between the states of San Luis Potosí and Veracruz. It receives the Tempoal River at El Higo. It ends at its confluence with the Tamuín River (Tampaón River) where together they form the Pánuco River. See also * *List of rivers of Mexico This is a list of rivers of Mexico, listed from north to south. There are 246 rivers on this list. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aurcana Corporation
The Aurcana Corporation is a Canadian mining company active in the United States and formerly active in Mexico. It is headquartered in Vancouver, British Columbia, Canada. It is listed on the TSX Venture Exchange. Assets Through its Mexican subsidiary, Real de Maconi S.A. de C.V. , it operated the La Negra mine, a silver, copper, zinc and lead mine in Querétaro, Mexico. Through its American subsidiary, Silver Assets Inc., it operates a silver mine in Shafter, Presidio County, Texas Presidio County is a county located in the U.S. state of Texas. As of the 2020 census, its population was 6,131. Its county seat is Marfa. The county was created in 1850 and later organized in 1875. Presidio County (K-5 in Texas topological ind ..., USA. Through its American subsidiary, Ouray Silver Mines, Inc., it operates the Revenue‐Virginius mine in Ouray, Colorado. References Companies based in Vancouver Mining companies of Canada Mining in Mexico Mining in Texas Querétaro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Northern Miner
''The Northern Miner'' is a weekly trade journal (formerly part of the Hollinger group) that reports on the mining industry. ''The Northern Miner'' began publication in Cobalt, Ontario, Canada, in 1915, and has since moved publication to Toronto Toronto ( ; or ) is the capital city of the Canadian province of Ontario. With a recorded population of 2,794,356 in 2021, it is the most populous city in Canada and the fourth most populous city in North America. The city is the ancho .... The weekly journal is considered to be the "leading authority on the mining industry in Canada", and " the mining industry's bible". References 1915 establishments in Ontario Trade magazines published in Canada Weekly magazines published in Canada Magazines established in 1915 Magazines published in Toronto {{mining-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
English Language
English is a West Germanic language of the Indo-European language family, with its earliest forms spoken by the inhabitants of early medieval England. It is named after the Angles, one of the ancient Germanic peoples that migrated to the island of Great Britain. Existing on a dialect continuum with Scots, and then closest related to the Low Saxon and Frisian languages, English is genealogically West Germanic. However, its vocabulary is also distinctively influenced by dialects of France (about 29% of Modern English words) and Latin (also about 29%), plus some grammar and a small amount of core vocabulary influenced by Old Norse (a North Germanic language). Speakers of English are called Anglophones. The earliest forms of English, collectively known as Old English, evolved from a group of West Germanic (Ingvaeonic) dialects brought to Great Britain by Anglo-Saxon settlers in the 5th century and further mutated by Norse-speaking Viking settlers starting in the 8th and 9th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mexican Geological Society
The Mexican Geological Society (in Spanish: Sociedad Geológica Mexicana) is a Mexican learned society A learned society (; also learned academy, scholarly society, or academic association) is an organization that exists to promote an discipline (academia), academic discipline, profession, or a group of related disciplines such as the arts and s ... founded in 1904. Among the founders was geologist Dr. José G. Aguilera who also was the first president of the society. The society publishes the journal ''Boletín de la Sociedad Geológica Mexicana''. References External links * {{authority control Geology societies Geology of Mexico Scientific organizations based in Mexico ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Société à Responsabilité Limitée
A (SARL, S.à r.l. and similar; literally "society with limited responsibility") is a form of private company that exists mainly in French-speaking countries, such as France, Luxembourg, Monaco, Algeria, Morocco, Tunisia, Madagascar, Lebanon, Switzerland (where it is also designated by GmbH or Sagl), and Belgium Belgium, ; french: Belgique ; german: Belgien officially the Kingdom of Belgium, is a country in Northwestern Europe. The country is bordered by the Netherlands to the north, Germany to the east, Luxembourg to the southeast, France to th ... (where, since 1 May 2019, it is also designated by ''besloten vennootschap'' and abbreviated as SRL). The primary purpose of a SARL is to conduct commercial activity. Proprietary interests in a SARL are represented by Share (finance), shares. They are not freely transferable; unless the intended recipient is a spouse, descendant, or other close relative, transfers require the agreement of half of the shareholders (sin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mining In Mexico
Mining in Mexico represented 2.4% of the nation's gross domestic product in 2023 and employed 350,000 people in 2020. Mexico is the world's largest producer of silver and a globally significant producer of gold, copper and zinc. In 2020, Mexico produced the world's 12th largest volume of minerals by value. Since 2018, Mexico's left-wing president has been taking a firmer stance towards mining companies and reforming mining regulations. President López Obrador was critical of (the mostly foreign owner) the mining company's track record of environmental harm and tax avoidance. Economy In 2023, mining in Mexico represented 2.4% of the nation's gross domestic product, and 8.2% of Mexico's industrial GDP. The mining sector employed 350,000 people in 2020, and generated US$1.5 billion in direct government tax revenue, and an additional US$1.84 billion of government revenue from exports of mined natural resources. Mexico is the world's largest producer of silver and a globally signific ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Silver Mines In Mexico
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] |
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