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Hotspot (geology)
O termo Hotspot (geology) é utilizado na Wikipedia de língua inglesa, onde se pode ler:

The places known as hotspots or hot spots in geology are volcanic regions thought to be fed by underlying mantle that is anomalously hot compared with the mantle elsewhere. They may be unanimously hot, and provide a great deal of molten magma. They may be on, near to, or far from tectonic plate boundaries. There are two hypotheses to explain them. One suggests that they are due to hot mantle plumes that rise as thermal diapirs from the core-mantle boundary. The other hypothesis postulates that it is not high temperature that causes the volcanism, but lithospheric extension that permits the passive rising of melt from shallow depths. This hypothesis considers the term "hotspot" to be a misnomer, asserting that the mantle source beneath them is, in fact, not anomalously hot at all. Well known examples include Hawaii and Yellowstone.

Este texto é um excerto do artigo Hotspot (geology) da enciclopédia livre Wikipédia. Na Wikipédia, está disponível uma lista dos autores.
Em pt.wikipedia.org, o artigo Hotspot (geology) foi consultado 12.014 vezes nos últimos 30 dias. (Versão: 18.04.2015)
Ponto quente
O termo Hotspot (geology) na Wikipedia de língua inglesa corresponde ao termo Ponto quente na Wikipedia de língua alemã, onde se pode ler:

Pontos quentes (do inglês hotspot), pontos de anomalia termal no interior da Terra, ligados a sistemas de convecção do manto e responsáveis pelo vulcanismo que ocorre no interior de placas tectónicas. Considera-se que a irregularidade térmica é devido à elevação de convecção pós-térmica do manto superior, denominado pluma fria. Em regiões oceânicas, encontram-se vulcanismos basálticos de composição álcali-olivina basáltica e toleítica. Em regiões continentais, observam-se vulcanismos de basalto toleítico, álcali-olivina basáltivo, fonolítico e carbonatítico. Observa-se um rastro que assinala o movimento da placa tectónica sobre o ponto quente.
A teoria dos pontos quentes foi postulada pelo geofísico canadiano J. Tuzo Wilson em 1963 para explicar a existência de celas de vulcões formando linhas coincidentes com a direção geral de movimento das placas sobre as quais assentam, e teve como modelo o arquipélago do Havaí. Nestas áreas, os vulcões parecem indiciar a passagem da crosta terrestre sobre uma pluma de material magmático, essencialmente fixa no manto terrestre, que ao ascender à superfície origina sucessivos edifícios vulcânicos.


Este texto é um excerto do artigo Ponto quente da enciclopédia livre Wikipédia. Na Wikipédia, está disponível uma lista dos autores.
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Hotspot (geology) - Wikipedia, the free encyclopedia
The places known as hotspots or hot spots in geology are volcanic regions thought to be fed by underlying mantle that is anomalously hot compared with the  ...
en.wikipedia.org/wiki/Hotspot_(geology)
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Hotspot (geology) - Simple English Wikipedia, the free encyclopedia
In geology, a hotspot or hot spot is a portion of the Earth's surface which experiences volcanism. This may be caused by a rising mantle plume or some other ...
simple.wikipedia.org/wiki/Hotspot_(geology)
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Hotspot (geology) - Science Daily
In geology, a hotspot is a location on the Earth's surface that has experienced active volcanism for a long period of time. Hotspots were thought to be caused by  ...
www.sciencedaily.com/articles/h/hotspot_(geology).htm
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Volcanic Hot Spots - Geology For Kids - By KidsGeo.com
When a hot spot forms in the middle of a plate, it remains constant, as the plate continues to move over it. The result is that a trail of volcanoes is left behind, with  ...
www.kidsgeo.com/geology-for-kids/0048-volcanic-hot-spots.php
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What is a Hot Spot? | Volcano World
Mantle plumes are areas of hot, upwelling mantle. A hot spot develops above the plume. Magma generated by the hot spot rises through the rigid plates of the ...
volcano.oregonstate.edu/what-is-a-hot-spot
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hot spot (geology) -- Encyclopedia Britannica
hot spot, Region of the Earth's upper mantle that upwells to melt through the crust to form a volcanic feature. Most volcanoes that cannot be ascribed either to a ...
www.britannica.com/EBchecked/topic/272766/hot-spot
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IRIS - What is a hotspot?
A volcanic "hotspot" is an area in the mantle from which heat rises as a thermal ... and evolution of the island of Hawaii: Geological Society of America Bulletin, ...
www.iris.edu/hq/programs/education_and_outreach/animations/21
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Plate Tectonics and the Hawaiian Hot Spot - Geology.com
The Hawaiian Islands formed as the Pacific Plate move above the Hawaiian Hot Spot.
geology.com/usgs/hawaiian-hot-spot/
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How Volcanoes Work - intraplate (hotspot) volcanism
These intraplate regions of voluminous volcanism are called hotspots. ... Although most geologists accept the hotspot concept, the number of hotspots worldwide ...
www.geology.sdsu.edu/how_volcanoes_work/intraplvolc_page.html
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Hawaii: Geology, Plate Tectonics/Hot Spot - MarineBio.net
A geologic 'hot spot' is an area in the middle of a crustal plate where volcanism occurs. It is easy to geologically explain the volcanism at plate spreading centers  ...
www.marinebio.net/marinescience/02ocean/hwgeo.htm
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Hotspot (geology) na Ciência
Hotspot (geology) - Simple English Wikipedia, the free encyclopedia
In geology, a hotspot or hot spot is a portion of the Earth's surface which experiences volcanism. This may be caused by a rising mantle plume or some other ...
Hotspot (geology) - Science Daily
In geology, a hotspot is a location on the Earth's surface that has experienced active volcanism for a long period of time. Hotspots were thought to be caused by  ...
webgeology
4 Jun 2012 ... Welcome to webGeology. Flashed teaching resources in geology from the University of Tromsø, Norway. site sponsored by ...
Cunha Marina R - MARES website -
Marina R. Cunha (1962), Auxiliary Professor at Universidade de Aveiro (Portugal ) ... for the degrees in Biology, Biology and Geology and Environmental Engineering. ... 2009- (ongoing): Hotspot Ecosystem Research and Man's Impact on ...
Geociências (São Paulo) - Geology and lithogeochemistry of the ...
Geology and lithogeochemistry of the Serra Geral Formation in Mato Grosso and ... Instituto de Geociências e Ciências Exatas, Universidade Estadual Paulista, ...... LAWVER, L.A. Revised plate motions relative to the hotspots from combined  ...
Wits University - Wits University
Wits has a reputation built on research and academic excellence. Wits is one of only two universities in Africa ranked in two separate international rankings as a ...
Economic Geology: Then and Now | Jébrak | Geoscience Canada
The science of mineral deposits (economic geology) has greatly evolved since its inception in ..... 13 Anorogenic magmatism is linked to lithospheric extension, hotspots and intraplate rifting ..... Brasilia: Editora Universidade de Brasilia, 392 p .
UCLA Geology Building - Westwood - Los Angeles, CA - Foursquare
Veja 2 fotos e 4 dicas de 138 visitantes do UCLA Geology Building. ... Faculdade de Ciências, Sala de Aula de Faculdade e Faculdade de ... UCLA Hotspots.
Joaquim Luis - Universidade do Algarve
Marine and Petroleum Geology Volume 26, Issue 5, May 2009, Pages 647- .... Extent of Azores plume influence on the Mid-Atlantic Ridge north of the hotspot.
Projects | Faculdade de Ciências da Universidade de Lisboa
Geology Center ... Fusão mantélica e produção crustal na Crista Média Atlântica sob influência do hotspot dos Açores: um caso de estudo no segmento KP-5 ...
livros referentes ao termo Hotspot (geology)
Hotspot (Geology)
Hotspot (Geology)
Frederic P. Miller, Agnes F. Vandome, John McBrewster, 2010
Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online.
Oceanic Hotspots: Intraplate Submarine Magmatism and Tectonism
Oceanic Hotspots: Intraplate Submarine Magmatism and Tectonism
Roger Hekinian, Peter Stoffers e Jean-Louis Cheminée, 2004
Ocean Hotspots provides a comprehensive overview of recent and ongoing research on intraplate volcanism in the ocean basins with special emphasis on the Pacific Ocean. The geology of the seamounts and their associated seamount chains is described, along with detailed geophysical, geochemical and hydrothermal observations made by a multi-disciplinar...
Regional Geology: Canadian Shield, Messinian Salinity ...
Regional Geology: Canadian Shield, Messinian Salinity ...
Source Wikipedia, Books Llc, 2010
Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online.
Regional Geology and Tectonics: Principles of Geologic Analysis: 1A
Regional Geology and Tectonics: Principles of Geologic Analysis: 1A
David G. Roberts e A.W. Bally, 2012
Expert petroleum geologists David Roberts and Albert Bally bring you Regional Geology and Tectonics: Principles of Geologic Analysis, volume one in a three-volume series covering Phanerozoic regional geology and tectonics. It has been written to provide you with a detailed overview of geologic rift systems, passive margins, and cratonic basins, it ...
Supervolcano: Types of Volcanic Eruptions, Magma, Hotspot ...
Supervolcano: Types of Volcanic Eruptions, Magma, Hotspot ...
Lambert M. Surhone, Miriam T. Timpledon, Susan F. Marseken, 2010
Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online.
Deep-Water Coral Reefs: Unique Biodiversity Hot-Spots (Springer Praxis Books / Life Sciences)
Deep-Water Coral Reefs: Unique Biodiversity Hot-Spots (Springer Praxis Books / Life Sciences)
Martin Hovland, 2008
Deep-water coral reefs are found along large sections of the outer continental shelves and slopes of Europe, from North Cape to the Gulf of Cadiz, and because they also occur along the Atlantic seaboard of USA, the Gulf of Mexico, off Brazil, in the Mediterranean, and off New Zealand, they are currently being targeted by international groups of mar...
Caribbean Geology: Into the Third Millenium : Transactions ...
Caribbean Geology: Into the Third Millenium : Transactions ...
Trevor A. Jackson, 2002
Into the Third Millenium : Transactions of the Fifteenth Caribbean Geological Conference Trevor A. Jackson. the distance ... A connection of Caribbean oceanic crust material with the Galapagos hotspot is, therefore, not feasible. DISCUSSION ...
Building the Cape Verde Islands (Springer Theses)
Building the Cape Verde Islands (Springer Theses)
Ricardo A. S. Ramalho, 2011
Hotspots are enigmatic surface features that are not easily explained in the framework of plate tectonics. Investigating their origin is the goal of this thesis, using field evidence collected in the Cape Verde Islands, a prominent hotspot archipelago in the eastern Atlantic Ocean. The approach taken is to document uplift of the islands relative to...
Geology and hydrogeology of carbonate islands
Geology and hydrogeology of carbonate islands
Leonard H.L. Vacher, Terrence M. Quinn, 2004
The archipelago of the Society Islands is the most like that of a classic island chain formed by hotspot activity. The younger islands (0.5-1.0 Ma) are high aerial volcanoes situated in the southeast near the hotspot zone (Mehetia and Tahiti).
Wildlife of South Africa: A Photographic Guide
Wildlife of South Africa: A Photographic Guide
Duncan Butchart, 2013
A handy, all-in-one photographic field guide to the wildlife of South Africa, covering the region's mammals, birds, reptiles, frogs and trees that are most likely to be seen, with concise accounts and distribution maps for each species. A brief introduction discusses geology, climate, vegetation zones, wildlife hotspots, and tips on watching w...
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Registos de blog referentes ao termo
Hotspot (geology)
Geology Word of the Week: H is for Hotspot - Georneys - AGU Blogosphere
Travertine forming at a hotspring, Yellowstone hotspot, Fall 2005.  def. Hotspot: 1.
blogs.agu.org/georneys/2010/12/23/geology-word-of-the-week-h-is-for-hotspot/
Hotspot (geology) |
Posts about Hotspot (geology) written by Steve Drury
earth-pages.co.uk/tag/hotspot-geology/
Iceland geology | Volcano and earthquake activity in Iceland
Posted on March 24, 2014 by Jón Frímann.
www.jonfr.com/volcano/
Volcanic and Biological Hotspots | Geology for Global Development
Geology for Global Development followed Professor Iain Stewart’s BBC two TV series (June 2013), ‘Rise of the Continents‘ with interest. In the first episode, Iain mentioned something that really caught our attention – the strange volcanoes along the East African rift valley and their effect on soils and wildlife. Each year, as the rainy season transforms the Serengeti, a nutrient hotspot emerges: a small patch of grass that is exceptionally rich in calcium and phosphorous, essential nutrients for healthy calf development.
blogs.egu.eu/gfgd/2013/10/14/volcanic-and-biological-hotspots/
Mystery of Santa Barbara Hot Spot Solved? | The Geology News Blog
The mystery hot spot near Santa Barbara in the Dick Smith Wilderness has apparently been solved by researchers from the University of California at Santa Barbara and the USGS. The thermal anomaly is centered in a three-acre, highly disrupted slide deposit in a recently active, seventeen-acre rotational/translational landslide. The landslide is within the Eocene shales and siltstones of the Juncal Formation, a distal submarine fan deposit that contains traces of iron sulfides, organic material, and carbonate (Dibblee, 1966; Onderdonk, 2003). Interestingly enough, I found this article on About.com who listed this website on the front page of their geology section last week! Scroll down a few posts to find out.
geology.rockbandit.net/2005/10/20/mystery-of-santa-barbara-hot-spot-solved/
Geology on an epic scale: the Yellowstone caldera | Highly Allochthonous
Posted on July 21, 2010 by Chris Rowan.
all-geo.org/highlyallochthonous/2010/07/geology-on-an-epic-scale-the-yellowstone-caldera/
The elusive Hawaiian hot spot spoils a nice geological story
Jun 4 The elusive Hawaiian hot spot spoils a nice geological story Huge pool of magma (dark pink) interpreted to be under the earth's crust west of Hawaii superimposed on a seismic scattering image (from Cao, Q., et al., ref. 4).It is often claimed that the Hawaiian Islands provide an impossible problem for biblical geology and the young earth.
biblicalgeology.net/blog/elusive-hawaiian-hot-spot/
Galapagos Island Geography and Geology – Part One – The Tectonic Plates and Hot Spots Created the Volcanic Islands - Galápagos Eco Lodge: The Blog
Part One of a Three-Part series about Galapagos Islands' geography and geology written by Harry Jimenez, guide certified by the Galapagos National Park Service. Here, he explains the natural formation of the Galapagos Islands by the movement of tectonic plates that caused volcanoes. Part Two discusses volcanoes and Part Three discusses ocean currents, both explaining how these natural phenomenon contribute to the unique characteristics, marine, land and bird life of each island.
blog.galapagosecolodge.net/2012/09/galapagos-island-geography-and-geology.html
hotspot: Definition from Answers.com
hot spot (1) A small, radio-bright region in a lobe of a radio galaxy , thought to be caused by high-speed material in a jet colliding with the boundary
www.answers.com/topic/hotspot-geology
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