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Rubielos De La Cérida Impact Structure
The c. 80 km x 40 km sized Rubielos de la Cérida structure is a claimed impact feature located in Aragon, northeast Spain, north of Teruel purported to have formed during the Upper Eocene or Oligocene (roughly 30 - 40 Mill. years ago). The name is derived from the nearby village of Rubielos de la Cérida. The claim that the structure represents an impact feature is rejected by the majority of scientists, and the mainstream consensus is that the supposed structure is explained by non impact related tectonic structures, namely the Jiloca- Calatayud graben and the Alfambra-Teruel graben. Ernstson, K., Claudin, F., Schüssler, U. & Hradil, K. (2002): The mid-Tertiary Azuara and Rubielos de la Cérida paired impact structures (Spain). - Treb. Mus. Geol. Barcelona, 11, 5 - 65. Reception The origin of the Rubielos de la Cérida structure has been debated, and the mainstream opinion of Spanish geologists is that the structure is not an impact feature.Cortés A. L., Diaz-Martínez ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rubielos De La Cérida Impact Structure-karte Topo , a town in the province of Teruel, Aragon
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Rubielos is the name of several towns in Spain: * Rubielos de Mora, a town in the province of Teruel, Aragon * Rubielos de la Cérida, a town in the province of Teruel, Aragon See also: * Mora de Rubielos, a town in the province of Teruel, Aragon * Fuentes de Rubielos Fuentes de Rubielos is a municipality located in the province of Teruel, Aragon, Spain. According to the 2004 census (INE INE, Ine or ine may refer to: Institutions * Institut für Nukleare Entsorgung, a German nuclear research center * Instit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alluvial Fans
An alluvial fan is an accumulation of sediments that fans outwards from a concentrated source of sediments, such as a narrow canyon emerging from an escarpment. They are characteristic of mountainous terrain in arid to semiarid climates, but are also found in more humid environments subject to intense rainfall and in areas of modern glaciation. They range in area from less than to almost . Alluvial fans typically form where flow emerges from a confined channel and is free to spread out and infiltrate the surface. This reduces the carrying capacity of the flow and results in deposition of sediments. The flow can take the form of infrequent debris flows or one or more ephemeral or perennial streams. Alluvial fans are common in the geologic record, such as in the Triassic basins of eastern North America and the New Red Sandstone of south Devon. Such fan deposits likely contain the largest accumulations of gravel in the geologic record. Alluvial fans have also been found on Mar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sistema Ibérico
The Iberian System ( es, Sistema Ibérico, ) is one of the major systems of mountain ranges in Spain. It consists of a vast and complex area of mostly relatively high and rugged mountain chains and massifs located in the central region of the Iberian Peninsula, but reaching almost the Mediterranean coast in the Valencian Community in the east. The system is hydrographically important, as it separates the watersheds of most of the major rivers in Spain and Portugal, including the Ebro basin from the basins of the Douro, Tagus, Guadiana (Záncara- Gigüela), Júcar and Turia. There are important mining areas in some of the ranges such as Sierra Menera, Sierra de Arcos and Sierra de San Just, making the system one of the chief mining regions in Spain since ancient times. One of the comarcas of Aragon located in the Iberian System was given the name of Cuencas Mineras, lit. 'Mining Basins', since mining is the main activity in the comarca. Location and description The Sist ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Possible Impact Craters On Earth
Possibility is the condition or fact of being possible. Latin origins of the word hint at ability. Possibility may refer to: * Probability, the measure of the likelihood that an event will occur * Epistemic possibility, a topic in philosophy and modal logic * Possibility theory, a mathematical theory for dealing with certain types of uncertainty and is an alternative to probability theory * Subjunctive possibility, (also called alethic possibility) is a form of modality studied in modal logic. ** Logical possibility, a proposition that will depend on the system of logic being considered, rather than on the violation of any single rule * Possible world, a complete and consistent way the world is or could have been Other *Possible (Italy), a political party in Italy *Possible Peru, a political party in Peru *Possible Peru Alliance, an electoral alliance in Peru Entertainment *''Kim Possible'', a US children's TV series :*Kim Possible (character), the central character of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Impact Craters Of Spain
Impact may refer to: * Impact (mechanics), a high force or shock (mechanics) over a short time period * Impact, Texas, a town in Taylor County, Texas, US Science and technology * Impact crater, a meteor crater caused by an impact event * Impact event, the collision of a meteoroid, asteroid or comet with Earth * Impact factor, a measure of the citations to a science or social science journal Books and magazines * ''Impact'' (novel), a 2010 novel by Douglas Preston *'' Impact Press'', a former Orlando, Florida-based magazine * Impact Magazines, a former UK magazine publisher * ''Impact'' (conservative magazine), a British political magazine * ''Impact'' (British magazine), a British action film magazine * ''Impact'', a French action film magazine spun off from '' Mad Movies'' * ''Impact'' (UNESCO magazine), a former UNESCO quarterly titled ''IMPACT of science on society'' * ''Impact'' (student magazine), a student magazine for the University of Nottingham, England * ''Bath ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Azuara Impact Structure
The Azuara impact structure is a structural feature of about diameter,Mikheeva, 2017 located in northeastern Spain, roughly south of Zaragoza. The name is attributed to the small town of Azuara located near the center of the structure. The first hint to a possible impact event, impact origin was given by Wolfgang Hammann as early as 1980, and the first field evidence was provided by :de:Johannes Fiebag, Johannes Fiebag in the early eighties. In 1985, Ernstson et al. published the occurrence of shock metamorphism, and Azuara was established (Grieve & Shoemaker 1994, Hodge 1994, Norton 2002Grieve R. A. F. and Shoemaker E. M. (1994) The record of past impacts on Earth. In Hazards Due to Comets and Asteroids, edited by T. Gehrels. Space Science Series Tucson, Arizona, USA: Univ. Arizona Press. pp. 417-462Hodge P. (1994) Meteorite craters and impact structures of the Earth. Cambridge, UK: Cambridge University Press. 124 p."Norton, O.R. (2002) The Cambridge Encyclopedia of Meteorites" ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Earth Impact Database
The Earth Impact Database is a database of confirmed impact structures or craters on Earth. It was initiated in 1955 by the Dominion Observatory, Ottawa, under the direction of Carlyle S. Beals. Since 2001, it has been maintained as a not-for-profit source of information at the Planetary and Space Science Centre at the University of New Brunswick, Canada. , the database lists 190 confirmed impact sites. Other lists are wider in scope by including more than just confirmed sites, such as probable, possible, suspected and rejected or discredited impact sites on their lists. These are used for screening and tracking study of possible impact sites. Sites will appear first in these lists while under study and may be incorporated into UNB's Earth Impact Database after confirmation and collection of enough information about the site to satisfy the database's strict entry criteria. A previous list was maintained by the Impact Field Studies Group at the University of Tennessee, Knoxville. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Karst
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] |
Conglomerate (geology)
Conglomerate () is a clastic sedimentary rock that is composed of a substantial fraction of rounded to subangular gravel-size clasts. A conglomerate typically contains a matrix of finer-grained sediments, such as sand, silt, or clay, which fills the interstices between the clasts. The clasts and matrix are typically cemented by calcium carbonate, iron oxide, silica, or hardened clay. Conglomerates form by the consolidation and lithification of gravel. They can be found in sedimentary rock sequences of all ages but probably make up less than 1 percent by weight of all sedimentary rocks. In terms of origin and depositional mechanisms, they are closely related to sandstones and exhibit many of the same types of sedimentary structures, e.g., tabular and trough cross-bedding and graded bedding.Boggs, S. (2006) ''Principles of Sedimentology and Stratigraphy.'', 2nd ed. Prentice Hall, New York. 662 pp. Friedman, G.M. (2003) ''Classification of sediments and sedimentary rocks.'' In G ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cenozoic
The Cenozoic ( ; ) is Earth's current geological era, representing the last 66million years of Earth's history. It is characterised by the dominance of mammals, birds and flowering plants, a cooling and drying climate, and the current configuration of continents. It is the latest of three geological eras since complex life evolved, preceded by the Mesozoic and Paleozoic. It started with the Cretaceous–Paleogene extinction event, when many species, including the non-avian dinosaurs, became extinct in an event attributed by most experts to the impact of a large asteroid or other celestial body, the Chicxulub impactor. The Cenozoic is also known as the Age of Mammals because the terrestrial animals that dominated both hemispheres were mammalsthe eutherians (placentals) in the northern hemisphere and the metatherians (marsupials, now mainly restricted to Australia) in the southern hemisphere. The extinction of many groups allowed mammals and birds to greatly diversify so that l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aragon
Aragon ( , ; Spanish and an, Aragón ; ca, Aragó ) is an autonomous community in Spain, coextensive with the medieval Kingdom of Aragon. In northeastern Spain, the Aragonese autonomous community comprises three provinces (from north to south): Huesca, Zaragoza, and Teruel. Its capital is Zaragoza. The current Statute of Autonomy declares Aragon a '' historic nationality'' of Spain. Covering an area of , the region's terrain ranges diversely from permanent glaciers to verdant valleys, rich pasture lands and orchards, through to the arid steppe plains of the central lowlands. Aragon is home to many rivers—most notably, the river Ebro, Spain's largest river in volume, which runs west–east across the entire region through the province of Zaragoza. It is also home to the highest mountains of the Pyrenees. , the population of Aragon was , with slightly over half of it living in its capital city, Zaragoza. In 2020, the economy of Aragon generated a GDP of million, which re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Journal Of Iberian Geology
''Journal of Iberian Geology'' (formerly ''Cuadernos de Geología Ibérica'') is a triannual peer-reviewed scientific journal published by the Universidad Complutense de Madrid. The journal covers the field of geology and related earth sciences, primarily on issues that are relevant to the geology of the Iberian Peninsula The geology of the Iberian Peninsula consists of the study of the rock formations on the Iberian Peninsula, which includes Spain, Portugal, Andorra, and Gibraltar. The peninsula contains rocks from every geological period from the Ediacaran to t .... External links * Geology journals Geology of Spain Geology of Portugal Publications established in 1970 Multilingual journals Open access journals Triannual journals Academic journals associated with universities and colleges {{geology-journal-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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