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Madre De Dios Island
Madre de Dios Island (Spanish: ''Isla Madre de Dios'', ) is an uninhabited island in the Magallanes Region, Chile. It is located west of the Trinidad Channel and Concepción Channel. Madre de Dios Island is composed partly of limestone and has several natural caves. In one of those caves, called the "Cave of the Whales", skeletons of whales 2600 to 3500 years old have been discovered 10 to 30 meters above sea level. In another cave, named Cueva del Pacifico, rock art was discovered in 2006. Many other caves near the coast were used by the indigenous Kaweskar people for burial. One skull found dates back to 4500 years ago. Some caves were used as temporary camps. The island, along with 53 smaller nearby islands, was protected as a nature reserve (''Bien Nacional Protegido'') in 2007. The island obtained its current name from a map in Alonso de Ovalle's work ''Histórica relación del reino de Chile'' which was published in 1646 in Italy. Apparently Alonso de Ovalle had base ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pacific Ocean
The Pacific Ocean is the largest and deepest of Earth's five oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean (or, depending on definition, to Antarctica) in the south, and is bounded by the continents of Asia and Oceania in the west and the Americas in the east. At in area (as defined with a southern Antarctic border), this largest division of the World Ocean—and, in turn, the hydrosphere—covers about 46% of Earth's water surface and about 32% of its total surface area, larger than Earth's entire land area combined .Pacific Ocean . '' Britannica Concise.'' 2008: Encyclopædia Britannica, Inc. The centers of both the |
Karst Caves
Karst is a topography formed from the dissolution of soluble rocks such as limestone, dolomite, and gypsum. It is characterized by underground drainage systems with sinkholes and caves. It has also been documented for more weathering-resistant rocks, such as quartzite, given the right conditions. Subterranean drainage may limit surface water, with few to no rivers or lakes. However, in regions where the dissolved bedrock is covered (perhaps by debris) or confined by one or more superimposed non-soluble rock strata, distinctive karst features may occur only at subsurface levels and can be totally missing above ground. The study of ''paleokarst'' (buried karst in the stratigraphic column) is important in petroleum geology because as much as 50% of the world's hydrocarbon reserves are hosted in carbonate rock, and much of this is found in porous karst systems. Etymology The English word ''karst'' was borrowed from German in the late 19th century, which entered German much earlier. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Hydrographic Office
The United States Hydrographic Office prepared and published maps, charts, and nautical books required in navigation. The office was established by an act of 21 June 1866 as part of the Bureau of Navigation, Department of the Navy. It was transferred to the Department of Defense on 10 August 1949. The office was abolished on 10 July 1962, replaced by the Naval Oceanographic Office. Objectives Before the hydrographic office was established in 1866, U.S. navigators were almost entirely dependent on British charts. A few private enterprises had prepared and published charts, but had not been able to do so profitably. The Hydrographic Office was established "for the improvement of the means for navigating safely the vessels of the Navy and of the mercantile marine, by providing, under the authority of the Secretary of the Navy, accurate and cheap nautical charts, sailing directions, navigators and manuals of instructions for the use of all vessels of the United States, and for the ben ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Madre De Dios Terrane
Madre de Dios Terrane is a distinct fragment of Earth's crust in southwestern Patagonia. Subduction made the Madre de Dios Terrane collide and accrete to Patagonia (then part of Gondwana) in the Mesozoic. This accretion is thought to have happened at a different location than today and the current location of the terrane is would be the result of displacement along dextral faults. The terrane is made up of three distinct units: *Denaro Complex *Torlton Limestone *Duque de York Complex is made up of pelites, greywackes and conglomerates. All these sediments are thought to be derived from a continent or microcontinent. Duque de York Complex was metamorphosed before the Cretaceous The Cretaceous ( ) is a geological period that lasted from about 145 to 66 million years ago (Mya). It is the third and final period of the Mesozoic Era, as well as the longest. At around 79 million years, it is the longest geological period of ... intrusions of the South Patagonian Batholith, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Guarello Island
Guarello Island (Spanish: ''Isla Guarello'') is an island in Madre de Dios Island, Madre de Dios Archipelago in Magallanes Region. Guarello Island is in a limestone area that also includes Madre de Dios Island. The island has the world's southernmost limestone mine and it has reserves for 100 years, and 600,000 tons of limestone with a millesimal fineness of 96% of Calcium carbonate are extracted each year. Half of the production is used in the steel mills of Huachipato, Chile, Huachipato which also owns the mine See also * List of islands of Chile External links Islands of Chile @ United Nations Environment ProgrammeWorld island information @ WorldIslandInfo.comSouth America Island High Points above 1000 meters* United States Hydrographic OfficeSouth America Pilot (1916) Islands of Magallanes Region Calcium carbonate mining {{MagellanAntarctic-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Islands Of Chile
This is a list of islands of Chile, as listed by the National Geospatial-Intelligence AgencyCountry Files (GNS)The data was retrieved on 19 January 2013 and thwere "ISL" and "ISLS" The country has 43,471 islands, according to the Chilean Ministry of National Assets and the Chilean Military Geographical Institute, in the last update at 2019. This list only includes Listnr. full name, generic inverted The complete term used to identify a named feature is known as the full name. As stored in the database, the entire name is output as "Desertores, Islas" rather than reading "Islas Desertores." The feature's latitude expressed in decimal degrees Decimal degrees of the feature's longitude A geonamed feature is uniquely identified by a Unique Feature Identifier (UFI), which is a number. A similar UFI denotes a similar feature. Chilean claims in the Antarctic are not included on this list. see also the list of islands in the Antarctic and subantarctic. The general terms "isla", "is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pedro Sarmiento De Gamboa
Pedro Sarmiento de Gamboa (1532–1592) was a Spanish explorer, author, historian, mathematician, and astronomer. His birthplace is not certain and may have been Pontevedra, in Galicia, where his paternal family originated, or Alcalá de Henares in Castile, where he later is known to have studied . His father Bartolomé Sarmiento was born in Pontevedra and his mother María Gamboa was born in Bilbao, Basque Country. Biography Early life At the age of 18, Sarmiento de Gamboa entered the royal military in the European wars. Between 1550 and 1555 the future navigator fought in the armies of Emperor Charles V. In 1555 he began his exploring career, sailing across the Atlantic Ocean. His first destination was New Spain (in what is today Mexico), where he lived for two years. Little is known of this period in his life, other than that he encountered difficulties with the Inquisition. He then sailed to Peru, where he lived for more than twenty years, gaining a reputation as a na ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alonso De Ovalle
Fr. Alonso de Ovalle (Santiago; July 27, 1603 – Lima; May 1651) was a Chilean Jesuit priest and chronicler of Chilean history, author of the ''Historica relacion del Reyno de Chile y de las missiones y ministerios que exercita en él la Compañía de Jesus'', describing the Conquest of Chile and the Arauco War. He was great grandson of the Genoese sailor Juan Bautista Pastene 200px, Map showing the September 1544 expedition led by Pastene. Giovanni Battista Pastene (1507–1580) was a Genoese maritime explorer who, while in the service of the Spanish crown, explored the coasts of Panama, Colombia, Ecuador, Peru .... Sources * Alonso de OvalleHistorica relacion del Reyno de Chile y de las missiones y ministerios que exercita en él la Compañía de Jesus Roma : Por Francisco Cavallo, 1646. Biblioteca Nacional References 1603 births 1651 deaths Jesuit historians and chroniclers Captaincy General of Chile Chilean historians 17th-century Chilean Jesuits ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Limestone
Limestone ( calcium carbonate ) is a type of carbonate sedimentary rock which is the main source of the material lime. It is composed mostly of the minerals calcite and aragonite, which are different crystal forms of . Limestone forms when these minerals precipitate out of water containing dissolved calcium. This can take place through both biological and nonbiological processes, though biological processes, such as the accumulation of corals and shells in the sea, have likely been more important for the last 540 million years. Limestone often contains fossils which provide scientists with information on ancient environments and on the evolution of life. About 20% to 25% of sedimentary rock is carbonate rock, and most of this is limestone. The remaining carbonate rock is mostly dolomite, a closely related rock, which contains a high percentage of the mineral dolomite, . ''Magnesian limestone'' is an obsolete and poorly-defined term used variously for dolomite, for limes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chile
Chile, officially the Republic of Chile, is a country in the western part of South America. It is the southernmost country in the world, and the closest to Antarctica, occupying a long and narrow strip of land between the Andes to the east and the Pacific Ocean to the west. Chile covers an area of , with a population of 17.5 million as of 2017. It shares land borders with Peru to the north, Bolivia to the north-east, Argentina to the east, and the Drake Passage in the far south. Chile also controls the Pacific islands of Juan Fernández, Isla Salas y Gómez, Desventuradas, and Easter Island in Oceania. It also claims about of Antarctica under the Chilean Antarctic Territory. The country's capital and largest city is Santiago, and its national language is Spanish. Spain conquered and colonized the region in the mid-16th century, replacing Inca rule, but failing to conquer the independent Mapuche who inhabited what is now south-central Chile. In 1818, after declaring in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Concepción Channel
Concepción Channel is an inside passage of the Chilean Patagonia. It extends from the point where Wide Channel and Trinidad Channel meet to the open sea. It is located at Earth Info, ''earth-info.nga.mil'' webpage: . and separates Madre de Dios Island and Duke of York Island, on the west side, from the Wilcock Peninsula and smaller islands, on the east side. Inocentes Channel is adjacent to the Concepción Channel. See also * Fjords and channels of Chile The southern coast of Chile presents a large number of fjords and fjord-like channels from the latitudes of Cape Horn (55° S) to Reloncaví Estuary (42° S). Some fjords and channels are important navigable channels providing access to ports like P ... References External links * United States Hydrographic OfficeSouth America Pilot (1916) Straits of Chile Bodies of water of Magallanes Region {{MagellanAntarctic-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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