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Cala, Huelva
Cala is a town and municipality located in the province of Huelva, Spain. According to the 2005 census, the city has a population of 1,324 inhabitants. The region has been mined since Carthaginian times and the local mines, ''Minas de Cala'' are well known for the minerals Skutterudite and Nickeline Nickeline or niccolite is a mineral consisting primarily of nickel arsenide (NiAs). The naturally-occurring mineral contains roughly 43.9% nickel and 56.1% arsenic by mass, but composition of the mineral may vary slightly. Small quantities of s .... Demographics References *''Mineralogy and origin of the skarn from Cala (Huelva, Spain)'', F. Velasco, and J. M. Amigo, Economic Geology, v. 76, no. 3, p. 719-727, May 1981 External linksCala- Sistema de Información Multiterritorial de AndalucíaMinas de Cala Municipalities in the Province of Huelva {{andalusia-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Municipalities In Huelva ...
This is a list of the 79 municipalities in the province of Huelva, in the autonomous community of Andalusia, Spain. See also *Geography of Spain *List of cities in Spain References External links Información sobre la Sierra de Aracena {{Municipalities of Spain Huelva Huelva (, ) is a city in southwestern Spain, the capital of the province of Huelva in the autonomous community of Andalusia. It is between two short rias though has an outlying spur including nature reserve on the Gulf of Cádiz coast. The rias ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Huelva (province)
Huelva () is a province of southern Spain, in the western part of the autonomous community of Andalusia. It is bordered by Portugal, the provinces of Badajoz, Seville, and Cádiz, and the Atlantic Ocean. Its capital is Huelva. Its area is 10,148 km². Its population is 483,792 (2005), of whom about 30% live in the capital, and its population density is 47.67/km². It contains 79 municipalities. The economy is based on agriculture and mining. The famous Rio Tinto mines have been worked since before 1000 BC, and were the major source of copper for the Roman Empire. As an indication of the scope of ancient mining, sixteen million tons of Roman slag have been identified at the Roman mines. British companies resumed large-scale mining in 1873; the district is the namesake of the Rio Tinto Group. The province contains Palos de la Frontera, and Moguer, where Christopher Columbus sailed out of on his first voyage in 1492, and shares the Parque Nacional de Doñana, located mai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mayor
In many countries, a mayor is the highest-ranking official in a municipal government such as that of a city or a town. Worldwide, there is a wide variance in local laws and customs regarding the powers and responsibilities of a mayor as well as the means by which a mayor is elected or otherwise mandated. Depending on the system chosen, a mayor may be the chief executive officer of the municipal government, may simply chair a multi-member governing body with little or no independent power, or may play a solely ceremonial role. A mayor's duties and responsibilities may be to appoint and oversee municipal managers and employees, provide basic governmental services to constituents, and execute the laws and ordinances passed by a municipal governing body (or mandated by a state, territorial or national governing body). Options for selection of a mayor include direct election by the public, or selection by an elected governing council or board. The term ''mayor'' shares a linguistic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gregorio Ortega Sánchez
Gregorio is a masculine given name and a surname. It may refer to: Given name * Gregorio Conrado Álvarez (1925–2016), Uruguayan army general and de facto President of Uruguay from 1981 until 1985 * Gregorio Álvarez (historian) (1889–1986), Argentine historian, physician and writer * Gregorio S. Araneta (1869–1930), Filipino lawyer, businessman and nationalist * Gregorio Benito (1946–2020), Spanish retired footballer * Gregorio C. Brillantes, Filipino writer * Gregorio di Cecco (c. 1390–after 1424), Italian painter * Gregório Nunes Coronel (c. 1548–c. 1620), Portuguese theologian, writer and preacher * Gregorio Cortez (1875–1916), Mexican-American tenant farmer and folk hero * Gregorio De Gregori (), printer in Renaissance Venice * Gregorio del Pilar (1875–1899), Philippine Revolutionary Forces general during the Philippine Revolution and the Philippine–American War * Gregorio De Ferrari (c. 1647–1726), Italian painter * Gregorio López (writer) (1895� ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Central European Time
Central European Time (CET) is a standard time which is 1 hour ahead of Coordinated Universal Time (UTC). The time offset from UTC can be written as UTC+01:00. It is used in most parts of Europe and in a few North African countries. CET is also known as Middle European Time (MET, German: MEZ) and by colloquial names such as Amsterdam Time, Berlin Time, Brussels Time, Madrid Time, Paris Time, Rome Time, Warsaw Time or even Romance Standard Time (RST). The 15th meridian east is the central axis for UTC+01:00 in the world system of time zones. As of 2011, all member states of the European Union observe summer time ( daylight saving time), from the last Sunday in March to the last Sunday in October. States within the CET area switch to Central European Summer Time (CEST, UTC+02:00) for the summer. In Africa, UTC+01:00 is called West Africa Time (WAT), where it is used by several countries, year round. Algeria, Morocco, and Tunisia also refer to it as ''Central Eu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Central European Summer Time
Central European Summer Time (CEST), sometimes referred to as Central European Daylight Time (CEDT), is the standard clock time observed during the period of summer daylight-saving in those European countries which observe Central European Time (CET; UTC+01:00) during the other part of the year. It corresponds to UTC+02:00, which makes it the same as Eastern European Time, Central Africa Time, South African Standard Time, Egypt Standard Time and Kaliningrad Time in Russia. Names Other names which have been applied to Central European Summer Time are Middle European Summer Time (MEST), Central European Daylight Saving Time (CEDT), and Bravo Time (after the second letter of the NATO phonetic alphabet). Period of observation Since 1996, European Summer Time has been observed between 01:00 UTC (02:00 CET and 03:00 CEST) on the last Sunday of March, and 01:00 UTC on the last Sunday of October; previously the rules were not uniform across the European Union. There were proposal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Census
A census is the procedure of systematically acquiring, recording and calculating information about the members of a given population. This term is used mostly in connection with national population and housing censuses; other common censuses include 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 co-ordinate international practices. The UN's Food and Agriculture Organization (FAO), in turn, defines the census of agriculture as "a statistical operation for collecting, processing and disseminating data on the structure of agriculture, covering t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ancient Carthage
Carthage () was a settlement in modern Tunisia that later became a city-state and then an empire. Founded by the Phoenicians in the ninth century BC, Carthage reached its height in the fourth century BC as one of the largest metropolises in the world George Modelski, ''World Cities: –3000 to 2000'', Washington DC: FAROS 2000, 2003. . Figures in main tables are preferentially cited. Part of former estimates can be read at Evolutionary World Politics Homepage Archived 2008-12-28 at the Wayback Machine and the centre of the Carthaginian Empire, a major power in the ancient world that dominated the western Mediterranean. Following the Punic Wars, Carthage was destroyed by the Romans in 146 BC, who later rebuilt the city lavishly. Carthage was settled around 814 BC by colonists from Tyre, a leading Phoenician city-state located in present-day Lebanon. In the seventh century BC, following Phoenicia's conquest by the Neo-Assyrian Empire, Carthage became independent, gra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Skutterudite
Named after Skuterudåsen, a hill in Modum, Norway, skutterudite is a cobalt arsenide mineral containing variable amounts of nickel and iron substituting for cobalt with the ideal formula CoAs3. Some references give the arsenic a variable formula subscript of 2–3. High nickel varieties are referred to as nickel-skutterudite, previously chloanthite. It is a hydrothermal ore mineral found in moderate to high temperature veins with other Ni-Co minerals. Associated minerals are arsenopyrite, native silver, erythrite, annabergite, nickeline, cobaltite, silver sulfosalts, native bismuth, calcite, siderite, barite and quartz. It is mined as an ore of cobalt and nickel with a by-product of arsenic. The crystal structure of this mineral has been found to be exhibited by several compounds with important technological uses. The mineral has a bright metallic luster, and is tin white or light steel gray in color with a black streak. The specific gravity is 6.5 and the hardness is 5.5–6 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nickeline
Nickeline or niccolite is a mineral consisting primarily of nickel arsenide (NiAs). The naturally-occurring mineral contains roughly 43.9% nickel and 56.1% arsenic by mass, but composition of the mineral may vary slightly. Small quantities of sulfur, iron and cobalt are usually present, and sometimes the arsenic is largely replaced by antimony. This last forms an isomorphous series with breithauptite (nickel antimonide). Etymology and history Medieval miners looking for copper in the German Erzgebirge ("Ore Mountains") would sometimes find a red mineral, superficially resembling copper ore. Upon attempting extraction, no copper was produced, and subsequently, the miners would be afflicted with mysterious illness. They blamed a mischievous sprite of German mythology, Nickel (similar to ''Old Nick'') for besetting the copper (German: Kupfer). This German equivalent of "copper-nickel" was used as early as 1694 (other old German synonyms are ''Rotnickelkies'' and ''Arsennickel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
