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Andacollo Gold Mine
Andacollo (, from quechua a''nta,'' copper, gold; ''coya,'' queen) is a city and commune in the Elqui Province, Coquimbo Region, Chile. It is the central town of a mining district dominated by medium-scale mining. There are gold placers and gold mineralizations within felsic volcanic rock in its vacinities. The copper mine Carmen de Andacollo lies next to the town and most of workers live in the town. History Andacollo is a copper and gold mining city located in the semi-arid mountains of the Norte Chico. It was founded in 1891. The town was subject to gold rush in the early 1930s when there was a large inflow of gold miners exploiting local placer deposits. While gold mining declined in the late 1930s, around 1935 Andacollo produced as much as 43% of all placer gold of Chile causing a shortage of water needed for processing. Several legends are told about the name of the city. Some say that it comes from the Quechua ''Anta-Goya'' which means cobre-reina (copper queen) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cities Of Chile
A city is a human settlement of a substantial size. The term "city" has different meanings around the world and in some places the settlement can be very small. Even where the term is limited to larger settlements, there is no universally agreed definition of the lower boundary for their size. In a narrower sense, a city can be defined as a permanent and densely populated place with administratively defined boundaries whose members work primarily on non-agricultural tasks. Cities generally have extensive systems for housing, transportation, sanitation, utilities, land use, production of goods, and communication. Their density facilitates interaction between people, government organizations, and businesses, sometimes benefiting different parties in the process, such as improving the efficiency of goods and service distribution. Historically, city dwellers have been a small proportion of humanity overall, but following two centuries of unprecedented and rapid urbanization, more ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Placer Deposit
In geology, a placer deposit or placer is an accumulation of valuable minerals formed by gravity separation from a specific source rock during sedimentary processes. The name is from the Spanish language, Spanish word ''placer'', meaning "alluvium, alluvial sand". Placer mining is an important source of gold, and was the main technique used in the early years of many gold rushes, including the California Gold Rush. Types of placer deposits include alluvium, eluvium, beach placers, aeolian placers and paleo-placers. Placer materials must be both dense and resistant to weathering processes. To accumulate in placers, mineral particles must have a specific gravity above 2.58. Placer environments typically contain black sand, a conspicuous shiny black mixture of iron oxides, mostly magnetite with variable amounts of ilmenite and hematite. Valuable mineral components often occurring with black sands are monazite, rutile, zircon, chromite, wolframite, and cassiterite. Early mining opera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Census
A census (from Latin ''censere'', 'to assess') is the procedure of systematically acquiring, recording, and calculating population information about the members of a given Statistical population, population, usually displayed in the form of statistics. This term is used mostly in connection with Population and housing censuses by country, national population and housing censuses; other common censuses include Census of agriculture, censuses of agriculture, traditional culture, business, supplies, and traffic censuses. The United Nations (UN) defines the essential features of population and housing censuses as "individual enumeration, universality within a defined territory, simultaneity and defined periodicity", and recommends that population censuses be taken at least every ten years. UN recommendations also cover census topics to be collected, official definitions, classifications, and other useful information to coordinate international practices. The United Nations, UN's Food ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Smallpox
Smallpox was an infectious disease caused by Variola virus (often called Smallpox virus), which belongs to the genus '' Orthopoxvirus''. The last naturally occurring case was diagnosed in October 1977, and the World Health Organization (WHO) certified the global eradication of the disease in 1980, making smallpox the only human disease to have been eradicated to date. The initial symptoms of the disease included fever and vomiting. This was followed by formation of ulcers in the mouth and a skin rash. Over a number of days, the skin rash turned into the characteristic fluid-filled blisters with a dent in the center. The bumps then scabbed over and fell off, leaving scars. The disease was transmitted from one person to another primarily through prolonged face-to-face contact with an infected person or rarely via contaminated objects. Prevention was achieved mainly through the smallpox vaccine. Once the disease had developed, certain antiviral medications could poten ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Black Madonna
The term ''Black Madonna'' or ''Black Virgin'' tends to refer to statues or paintings in Western Christendom of the Blessed Virgin Mary and the Infant Jesus, where both figures are depicted with dark skin. The Jungian scholar, San Begg published a study of Black Virgins and their possible pagan origins. Examples of the Black Madonna can be found both in Catholic Church, Catholic and Eastern Christianity, Orthodox countries. The paintings are usually icons, which are Byzantine Empire, Byzantine in origin or style, some of which were produced in 13th or 14th-century Italy. Other examples from the Middle East, Caucasus or Africa, mainly Egypt and Ethiopia, are even older. Statues are often made of wood but are occasionally made of stone, painted, and up to tall. They fall into two main groups: free-standing upright figures or seated figures on a throne. About 400–500 Black Madonnas have been recorded in Europe, with the number related to how they are classified. There are at ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quechua Language
Quechua (, ), also called (, 'people's language') in Southern Quechua, is an Indigenous languages of the Americas, indigenous language family that originated in central Peru and thereafter spread to other countries of the Andes. Derived from a common ancestral "Proto-Quechuan language, Proto-Quechua" language, it is today the most widely spoken Pre-Columbian era, pre-Columbian language family of the Americas, with the number of speakers estimated at 8–10 million speakers in 2004,Adelaar 2004, pp. 167–168, 255. and just under 7 million from the most recent census data available up to 2011. Approximately 13.9% (3.7 million) of Peruvians speak a Quechua language. Although Quechua began expanding many centuries before the Inca Empire, Incas, that previous expansion also meant that it was the primary language family within the Inca Empire. The Spanish also tolerated its use until the Peruvian War of Independence, Peruvian struggle for independence in the 1780s. As a result, var ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Editorial Universitaria
Editorial Universitaria is Chilean university press based in Santiago. It was established in 1947 with funds from private people and from the University of Chile. During its existence, it has published the works of generations influential Chilean scientists and intellectuals. The press publishes, among other things, children's literature Children's literature or juvenile literature includes stories, books, magazines, and poems that are created for children. In addition to conventional literary genres, modern children's literature is classified by the intended age of the reade .... References 1947 establishments in Chile University of Chile Book publishing companies of Chile Book publishing companies based in Santiago, Chile University presses of Chile Publishing companies established in 1947 {{Chile-university-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Placer Deposit
In geology, a placer deposit or placer is an accumulation of valuable minerals formed by gravity separation from a specific source rock during sedimentary processes. The name is from the Spanish language, Spanish word ''placer'', meaning "alluvium, alluvial sand". Placer mining is an important source of gold, and was the main technique used in the early years of many gold rushes, including the California Gold Rush. Types of placer deposits include alluvium, eluvium, beach placers, aeolian placers and paleo-placers. Placer materials must be both dense and resistant to weathering processes. To accumulate in placers, mineral particles must have a specific gravity above 2.58. Placer environments typically contain black sand, a conspicuous shiny black mixture of iron oxides, mostly magnetite with variable amounts of ilmenite and hematite. Valuable mineral components often occurring with black sands are monazite, rutile, zircon, chromite, wolframite, and cassiterite. Early mining opera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gold Rush
A gold rush or gold fever is a discovery of gold—sometimes accompanied by other precious metals and rare-earth minerals—that brings an onrush of miners seeking their fortune. Major gold rushes took place in the 19th century in Australia, Greece, New Zealand, Brazil, Chile, South Africa, the United States, and Canada while smaller gold rushes took place elsewhere. In the 19th century, the wealth that resulted was distributed widely because of reduced migration costs and low barriers to entry. While gold mining itself proved unprofitable for most diggers and mine owners, some people made large fortunes, and merchants and transportation facilities made large profits. The resulting increase in the world's gold supply stimulated global trade and investment. Historians have written extensively about the mass migration, trade, colonization, and environmental history associated with gold rushes. Gold rushes were typically marked by a general buoyant feeling of a "free-for-al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Norte Chico, Chile
The ''Norte Chico'' region is one of five natural regions of continental Chile, as defined by the government agency CORFO in 1950. Its northern border is formed by the limit with the Far North, to the west lies the Pacific Ocean, to the east the Andes mountains and Argentina, and to the south the Zona Central natural region. Although from a strictly geographic point of view, this natural region corresponds to the Chilean territory between the rivers Copiapó and Aconcagua. Traditionally, the Norte Chico refers to the zone comprising the regions of Atacama and Coquimbo. This region was home to the Diaguita people. Geography The near north (Norte Chico) extends from the southern border of the Atacama Desert to about 32° south latitude, or just north of Santiago. It is a semiarid region whose central area receives an average of about 25 mm of rain during each of the four winter months, with trace amounts the rest of the year. The near north is also subject to droughts ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gold Mining In Chile
The amount of gold mined in Chile has fluctuated in the 2010–2023 period from a high of 50,852 kg in 2013 to a low of 30,907 kg in 2022. Also in the same period 36% to 72% of the gold produced annually in Chile was a by-product of copper mining. The share of medium and small-scale mining in gold production in Chile has dropped from an average of 45% for the 2003–2005 period to 9% in 2023. Most of the economically viable gold deposits in Chile belong to two types of deposits; high-sulfidation epithermal and porphyry type. The bulk of these deposits formed in the last 66 millions years (Cenozoic) in connection to magmatic activity in the Andes. Gold from iron oxide copper gold ore deposits (IOCG), from mesothermal deposits, or of Mesozoic age (formed 66 to 252 million years ago) may in some cases be recurrent geological features but lack often large concentrations to make them profitable. Almost all valuable non-placer gold in Chile occur in the northern half of the country an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Copper Mining In Chile
Chile is the world's largest producer of copper and has been so uninterruptedly since 1983. This activity provides a substantial part of the Chilean state's revenue: slightly less than 6% in 2020, with state-owned copper company Codelco alone generating 2.6% of state revenue. Mining of copper in Chile is done chiefly on giant low-grade porphyry copper deposits which are primarily mined by the following companies; Codelco, BHP, Antofagasta Minerals, Anglo American plc, Anglo American and Glencore. Together these companies stood for 83.6% of the copper output in Chile in 2019 and many copper mining companies are joint ventures involving one at least one of these. Medium-scale mining in Chile, which focuses mainly on copper, produced about 4.5% of the copper mined in the country from 2017 to 2021. Copper is also the main product of small-scale mining in Chile, with about 95% of small-scale miners working in copper mining. One estimate puts the number of active copper mines in Chile ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
