A biodiversityhotspot is a biogeographic region with a significant reservoir of biodiversity that is under threat from humans. The concept of biodiversity hotspots was originated by Norman Myers in two ... ref To qualify as a biodiversityhotspot on Myers 2000 edition of the hotspot map, a region must ... available. DEFAULTSORT BiodiversityHotspot Category Biodiversity hotspots Biodiversity hotspots ..., mammal, reptile, and amphibian species , with a very high share of endemic species. Hotspot conservation initiatives Only a small percentage of the total land area within biodiversity hotspots is now protected. Several international organizations are working in many ways to conserve biodiversity hotspots ... of plant and animal diversity including biodiversity hotspots, high biodiversity wilderness areas ... rarity. All biodiversity hotspots contain at least one Global 200 Ecoregion. Birdlife International ... 2004.zip ArcView shapefile and metadata for the Biodiversity Hotspots including details of the individual endangered fauna in each hotspot, which is available from Conservation International. ref Conservation International 2007 BIODIVERSITY HOTSPOTS http www.biodiversityhotspots.org xp Hotspots ... thresholds. The biodiversity hotspots by region Image Biodiversity Hotspots.svg thumb right 600px Biodiversity hotspots. click for legend North and Central America California Floristic Province ... China Biodiversity of New Caledonia New Caledonia Biodiversity of New Zealand New Zealand Ecoregions ... Wallacea Critiques of hotspots The high profile of the biodiversity hotspots approach has resulted in considerable ... Conserving Biodiversity Coldspots , American Scientist , 91, 344 351. ref have argued that the biodiversity ... diversity . A recent series of papers has pointed out that biodiversity hotspots and many ... Turning up the heat on hotspots , Nature journal Nature , 436, 919 920. ref The purpose of biodiversity hotspots is not simply to identify regions that are of high biodiversity value, but to prioritize ... more details
equipment may occur T Mobile HotSpot , a service that allows mobile phone connections via a WiFi connection Hotspot Ecosystem Research and Man s Impact On European Seas , international research project disambiguation cs Hotspot da Hot spot de Hot Spot et Kuum punkt es Punto caliente fr Hotspot ko it Hotspot he nl Hotspot ja nds Hotspot pl Hot spot pt Hotspot ru sk Hot spot fi Hot spot t smennyssivu zh Hotspot ... more details
About Oracle s Java virtual machine Hotspot disambiguation Hotspot Infobox software name HotSpot logo ... General Public License website http openjdk.java.net groups hotspot Sun s OpenJDK Hotspot page HotSpot ... to improve performance. History HotSpot, first released April 27, 1999, was originally developed by Longview ... 20359903 pg 1 title Sun s Gosling Previews Hotspot Java Virtual Machine publisher ComputerGram date 1998 02 13 accessdate 2008 04 20 ref Initially available as an add on for Java 1.2, HotSpot became the default ... invocation count threshold to decide which methods to compile. The HotSpot Java virtual machine is written in C . As stated in HotSpot web page, the source contains approximately 250,000 lines of code. ref cite web url http openjdk.java.net groups hotspot title The HotSpot Group publisher Sun ... of code date 2007 accessdate 2007 10 03 ref Hotspot provides A Java Classloader class loader , A Java ... of supporting runtime libraries. The version of HotSpot for Microsoft Windows runs a background process ... 2011 ref JVM flags HotSpot supports many command line argument s for options of the virtual machine ... to HotSpot and may not be found in other JVMs options that begin with X or XX are non standard . ref cite web url http java.sun.com javase technologies hotspot vmoptions.jsp title Java HotSpot ... my favorite hotspot jvm flags.html title My Favorite Hotspot JVM Flags date 2009 01 29 last Nutter ... groups hotspot Sun s OpenJDK Hotspot page . This is the code that became part of Java version ... JDK , HotSpot is supported by Oracle Corporation on Microsoft Windows , Linux , and Solaris operating ... Solaris only . Porting HotSpot is difficult because the code, while primarily written in C , contains ... this, the IcedTea project has developed a generic port of the HotSpot Interpreter computing interpreter called zero assembler Hotspot or zero , with almost no assembly code. This port is intended for easy adaptation of the interpreter component of HotSpot to any Linux processor architecture ... more details
latitudes have also been recorded. Citation needed date August 2010 Hotspots A biodiversityhotspot ...Image Blue Linckia Starfish.JPG thumb Some of the biodiversity of a coral reef Image River gambia Niokolokoba National Park.gif thumb Rainforest s are an example of biodiversity on the planet, and typically ... National Park . Biodiversity is the degree of variation of life forms within a given ecosystem , biome , or an entire planet . Biodiversity is a measure of the health of ecosystems. Biodiversity is in part ... mass extinctions and several minor events have led to large and sudden drops in biodiversity. The Phanerozoic eon the last 540 million years marked a rapid growth in biodiversity via the Cambrian ... appeared. The next 400 million years included repeated, massive biodiversity losses classified ... biodiversity reduction and an accompanying loss of genetic diversity . Named the Holocene extinction .... Conversely, biodiversity impacts human health in a number of ways, both positively and negatively ... Parmesan first3 Camille title Biodiversity change and human health from ecosystem services to spread ... 2011 2020 as the United Nations Decade on Biodiversity . Etymology The term biological diversity ... form biodiversity may have been coined by W.G. Rosen in 1985 while planning the 1986 National Forum ... of the proceedings ref Edward O.Wilson, editor, Frances M.Peter, associate editor, Biodiversity ... books 0309037395 html R2.html online edition ref of that forum. ref Global Biodiversity Assessment ... keywords B Biodiversity , Glossary of terms related to the CBD , Belgium Belgian Clearing House Mechanism ... in conservation. Broader than biodiversity, it includes geology and landforms geodiversity . Definitions ... of fungi. In this photo, there are also leaf lichen s and moss es. Biological diversity or biodiversity ... established terms, species diversity and species richness . Biologists most often define biodiversity ... author Tor Bj rn Larsson title Biodiversity evaluation tools for European forests url http books.google.com ... more details
Image Hotspots.jpg right thumb 450px The Society hotspot is marked 38 on the map. The Society hotspot is a hotspot geology volcanic hotspot located in the Pacific Ocean , and is responsible for the creation of the Society Islands . DEFAULTSORT Society Hotspot Category Volcanology Volcanology stub marine geo stub ... more details
Image Hotspots.jpg thumb right 350px The Azores hotspot is marked 1 on map. The Azores hotspot is a volcano volcanic hotspot geology hotspot located at the Azores in the northern Atlantic Ocean . It has interactions with the Mid Atlantic Ridge which lies just west of the hotspot. References http adsabs.harvard.edu abs 2003AGUFM.T41C0226S Azores Hotspot Deep Signature http seismolab.gso.uri.edu pub Yang.T.EPSL.2006.pdf Upper mantle structure beneath the Azores hotspot from finite frequency seismic tomography coord missing Portugal Category Regional geology Category Hotspots of the Atlantic Ocean Category Geography of the Azores Category Geology of the Azores Volcanology stub Azores geo stub ... more details
Image Hotspots.jpg right thumb 450px The Marquesas hotspot is marked 26 on map. The Marquesas hotspot is a volcano volcanic hotspot geology hotspot in the central Pacific Ocean . It is responsible for the Marquesas Islands , a group of 12 volcanic islands and one of the five archipelagos of French Polynesia . ref http botany.si.edu pacificislandbiodiversity marquesasflora overview.htm Flora of the Marquesas Islands ref References reflist coord missing France Category Hotspots of the Pacific Ocean Category Regional geology Volcanology stub FrenchPolynesia geo stub ... more details
Image Hotspots.jpg right thumb 450px The Meteor hotspot is marked 27 on map. The Meteor hotspot is a proposed volcano volcanic hotspot geology hotspot located at or near the Meteor Rise in the southern Atlantic Ocean . ref cite journal title Southern Ocean hotspot tracks and the Cenozoic absolute motion of the African, Antarctic, and South American plates last1 Hartnady first1 C.J.H last2 Roex first2 A.P. le publisher Earth and Planetary Science Letters year 1985 pages 245 257 ref References reflist Category Hotspots of the Atlantic Ocean Volcanology stub ... more details
Image Hotspots.jpg right thumb 350px The Eifel hotspot is marked 8 on map. The Eifel hotspot is a volcano volcanic hotspot geology hotspot which is responsible for the volcanic activity which forms the volcano es in Western Germany of northwestern Europe . It is thought to have formed the Eifel volcanic field . ref http www.springerlink.com content r2pg83qu7qn05510 SpringerLink Seismic Anisotroppy in the Asthenosphere Beneath the Eifel Region, Western Germany ref References reflist Volcanology stub Germany geo stub coord missing Germany Category Hotspots Category Regional geology Category Geology of Germany de Eifel ... more details
Image Hotspots.jpg right thumb 450px The Pitcairn hotspot is marked 31 on map. The Pitcairn hotspot is a volcano volcanic hotspot geology hotspot located in the south central Pacific Ocean . It is responsible for creating the Pitcairn Islands and two large seamount s called Adams Seamount Adams and Bounty Seamount Bounty . ref http www.volcano.si.edu world volcano.cfm?vnum 1303 05 Global Volcanism Program Adams Seamount ref Opponents of the hotspots theory instead attribute Pitcairn hotspot to the western end of the Easter Fracture Zone . Fact date June 2009 References reflist http www.oceandots.com pacific pitcairn Formation of Pitcairn Islands Category Hotspots of the Pacific Ocean Category Geology of Oceania Category Geography of the Pitcairn Islands Volcanology stub marine geo stub pitcairn geo stub ... more details
Image Hotspots.jpg right thumb 450px The Trindale hotspot is marked 41 on map. The Trindade hotspot is a volcano volcanic hotspot geology hotspot off the eastern coast of Brazil in the southern Atlantic Ocean . It is responsible for the creation of the east west trending Vit ria Trindade seamount chain, which includes the Trindade and Martim Vaz archipelago at its easternmost end. Trindade, a small island in the archipelago, is the hotspot s most recent eruptive center. The most recent eruption created a Convert 200 m ft abbr on high cinder cone and lava flows on the southeastern portion of the island during the Holocene period. ref cite gvp vnum 1805 051 title Trindade accessdate 2010 04 21 ref References reflist coord missing Brazil Category Hotspots of the Atlantic Ocean Category Geology of Brazil Volcanology stub Brazil geo stub ... more details
About the geologic term other uses Hotspot disambiguation File Hotspot geology 1.svg thumb 170px Diagram ... the term hotspot to be a misnomer, asserting that the mantle source beneath them is, in fact, not anomalously .... Hawaii hotspot Hawaii , R union hotspot R union , Yellowstone hotspot Yellowstone , Gal pagos hotspot Gal pagos , and Iceland hotspot Iceland are some of the most currently active volcanic regions to which the hypothesis is applied. Most hotspot volcanoes are basaltic e.g., Hawaiian Islands ... format PDF accessdate 2008 06 15 Dead link date August 2010 ref The hotspot hypothesis is now closely linked to the mantle plume hypothesis. Comparison with island arc volcanoes Hotspot volcanoes ... a chain of volcanoes, such as the Aleutian Islands , near Alaska . Hotspot volcanic chains File HotspotTrails.JPG right thumb 300px Prominent hotspot trails on a bathymetry bathymetric map of the Pacific ... over the Hawaii hotspot , creating Emperor Seamounts a trail of underwater mountains that stretch across the Pacific The joint mantle plume hotspot hypothesis envisages the feeder structures to be fixed ... deeply eroded to the northwest. Geologists have tried to use hotspot volcanic chains to track the movement ... 01 07 ref Postulated hotspot volcano chains File CourtHotspots.png thumb right An example of mantle ... from Foulger 2010 . ref name Foulger Hawaiian Emperor seamount chain Hawaii hotspot Louisville seamount chain Louisville hotspot Walvis Ridge Gough and Tristan hotspot Kodiak Bowie Seamount chain Bowie hotspot Cobb Eickelberg Seamount chain Cobb hotspot New England Seamount chain New England hotspot Anahim Volcanic Belt Anahim hotspot Mackenzie dike swarm Mackenzie hotspot Great Meteor hotspot track New England hotspot Saint Helena Seamount chain St. Helena Seamount Chain Cameroon Volcanic Line Saint Helena hotspot Mascarene Plateau Southern Mascarene Plateau &ndash Chagos Maldives Laccadive Ridge R union hotspot Ninety East Ridge Kerguelen hotspot ? ref name Verzhbitsky Cite journal author ... more details
Image Hotspots.jpg right thumb 450px The Easter hotspot is marked 7 on map. The Easter hotspot is a volcano volcanic hotspot geology hotspot located in the southeastern Pacific Ocean . The hotspot created the Sala y G mez Ridge which includes Easter Island and the Pukao Seamount Pukao Seamount which is at the ridge s young western edge. The hotspot may also be responsible for the formation of the Tuamotu Archipelago , Line Islands , and the chain of seamounts lying in between. ref Cite journal author W. J. Morgan title Convection Plumes in the Lower Mantle url http www.mantleplumes.org Morgan1971.html journal Nature volume 230 year 1971 doi 10.1038 230042a0 ref Opponents of the hotspot theory instead attribute Easter hotspot to the middle part of the Easter Fracture Zone . Fact date June 2009 See also Easter Island Geology Moai seamount Pukao Seamount Sala y G mez References reflist External links cite journal last Haase first Karsten M. coauthors Peter Stoffers and C. Dieter Garbe Sch nberg date October 1997 title The Petrogenetic Evolution of Lavas from Easter Island and Neighbouring Seamounts, Near ridge Hotspot Volcanoes in the SE Pacific journal Journal of Petrology volume 38 issue 6 pages 785 813 doi 10.1093 petrology 38.6.785 Geology of Chile DEFAULTSORT Easter Hotspot Category Regional geology Category Volcanism of Chile Category Hotspots of the Pacific Ocean Volcanology stub ... more details
Image Hotspots.jpg right thumb 350px The Kerguelen hotspot is marked 20 on map. The Kerguelen hotspot is a volcanic hotspot geology hotspot at the Kerguelen Plateau in the Southern Indian Ocean . ref Name Gupta&Desa cite book title The Indian Ocean a perspective, Volume 2 last Gupta & Desa first authorlink coauthors Rabin Sen Gupta, Ehrlich Desa year 2001 publisher Taylor & Francis location isbn 9058092240 page 743 url http books.google.com books?id S3i4uFXR MYC&pg PA747&dq Kerguelen hotspot&hl en&ei UUf5TKfrJMT lge oPT Bg&sa X&oi book result&ct result&resnum 1&ved 0CCcQ6AEwAA v onepage&q Kerguelen&f false ref The Kerguelen hotspot has produced basalt ic lava for about 130 million years and has also produced the Kerguelen Islands , Heard Island , the McDonald Islands , and the Ninetyeast Ridge . References reflist Coord missing France DEFAULTSORT Kerguelen Hotspot Category Regional geology Category Hotspots of the Indian Ocean Volcanology stub FrenchSouthernTerritories geo stub fr Point chaud des Kerguelen ... more details
Image Hotspots.jpg right thumb 450px The Macdonald hotspot is the Pacific Ocean, marked 24 on this map. The Macdonald hotspot is a volcano volcanic hotspot geology hotspot in the southern Pacific Ocean . The hotspot was responsible for the formation of the Macdonald Seamount, and possibly the Austral Islands Austral Cook Islands chain. ref Cite journal author W. J. Morgan title Convection Plumes in the Lower Mantle doi 10.1038 230042a0 url http www.mantleplumes.org Morgan1971.html journal Nature volume 230 year 1971 ref It is named after Gordon Macdonald, 1st Baron Macdonald of Gwaenysgor Gordon Macdonald . ref name SI cite book title Plate velocities in hotspot reference frame electronic supplement date publisher pages 111 url http www.mantleplumes.org P 5E4 P 5E4Chapters MorganP4ElectronicSupp1.pdf accessdate 2010 04 23 author W. Jason Morgan and Jason Phipps Morgan ref References reflist Category Hotspots of the Pacific Ocean Category Regional geology marine geo stub Volcanology stub ... more details
Image Hotspots.jpg right thumb 350px The Cobb hotspot is shown as 5 on map. The Cobb hotspot is a volcano volcanic hotspot geology hotspot located off the Oregon Washington U.S. state Washington coast of the United States . The hotspot is at the Juan de Fuca Ridge , and has made the Cobb Eickelberg Seamount chain . The Axial Seamount is the hotspot s most recent eruptive center, which last erupted in 1998. ref cite web url http adsabs.harvard.edu abs 2001AGUFM.T31D..02C title Geochemical and Tectonic Effects of the Interaction of the Cobb Hotspot and the Juan de Fuca Ridge author J. Chadwick coauthors M. Perfit, B. Embley, I. Ridley, I. Jonasson, S. Merle work American Geophysical Union, Fall Meeting 2001, abstract T31D 02 date December 2001 accessdate 2008 11 19 ref The central ridge is thicker than the surrounding crust by one to two km and may be accumulated buildup from the hotspot, which is essentially an underwater volcano with a root twenty to forty kilometers in diameter reaching a depth of convert 11 km beneath the volcano. The magma flows at rate of 0.3 to 0.8 cubic meters per second m s . The caldera is convert 1450 m ft below sea level. ref cite web url http www.ldeo.columbia.edu users menke COBB cobb jdf.pdf title Focused magma supply at the intersection of the Cobb hotspot and Juan de Fuca ridge author Michael West coauthors William Menke, Maya Tolstoy date February 2003 accessdate 2008 11 19 ref ref http kiska.giseis.alaska.edu input west presentations agu2001 presentation.pdf reF See also Geology of the Pacific Northwest Cobb Seamount Axial Seamount References reflist coord 46.0 130.0 region XZ dim 40km display title Category Hotspots of the Pacific Ocean Category Regional geology Category Geology of Oregon Category Geology of Washington state Volcanology stub Oregon geo stub Washington geo stub ... more details
The Matachewan hotspot was a volcano volcanic hotspot geology hotspot responsible for the creation of the large 2,500 to 2,450 million year old Matachewan dike swarm , as well as continental rift ing of the Superior craton Superior and Hearne craton Hearne craton s during the Paleoproterozoic period. See also Portal Volcanism of Canada Volcanism of Canada Volcanism of Eastern Canada Mackenzie hotspot Great Lakes Tectonic Zone References http www.mantleplumes.org WebDocuments Bleeker 20& 20Ernst 20IDC5 20paper.pdf Short lived mantle generated magmatic events and their dyke swarms The key unlocking Earth s paleogeographic record back to 2.6 Ga coord missing Ontario Category Volcanism of Ontario Category Hotspots of North America Category Paleoproterozoic volcanism Ontario geo stub Volcanology stub ... more details
Image Hotspots.jpg right thumb 350px The Bowie hotspot is marked 3 on map. File Kodiak Bowie Seamounts.jpg thumb right 350px Over millions of years, the Pacific Plate has moved over the Bowie hotspot, creating the Kodiak Bowie Seamount chain in the Gulf of Alaska The Bowie hotspot is a volcano volcanic hotspot geology hotspot , located convert 180 km mi west of the Queen Charlotte Islands in the Pacific Ocean . Almost all magma created by the hotspot has the composition of basalt , and so the volcanoes are constructed almost entirely of this igneous rock . The eruptions from the Bowie hotspot are effusive eruption s because basaltic magma is relatively fluid compared with magmas typically involved in more explosive eruption s, such as the andesite andesitic magmas that produce some of the spectacular and dangerous eruptions around the margins of the Pacific Ocean . Bowie hotspot is believed to be perhaps convert 100 to 150 km mi 1 abbr on wide and underlain by a mantle plume that is relatively deep. It is also considerably weak. ref cite journal last Nataf first Henri Claude year 2000 title Seismic Imaging of Mantle Plumes journal Annual Review of Earth and Planetary Sciences volume 28 issue 1 pages 391 417 doi 10.1146 annurev.earth.28.1.391 ref Eruptions from the Bowie hotspot have left a trail of underwater mountains across the Pacific, called the Kodiak Bowie Seamount chain , ref cite web url http www.oceanexplorer.noaa.gov explorations 04alaska background volcanic volcanic.html title NOAA Ocean Explorer Gulf of Alaska 2004 accessdate 2007 09 02 ref which is an underwater mountain region of seamount s along a line beneath the northern Pacific Ocean. The oldest volcano in the chain is Kodiak Seamount with an estimated age of 24 million years and the youngest called Bowie Seamount . Geological studies show that the base of Bowie Seamount formed less than a million years ... Geology of the Pacific Northwest Cobb hotspot References Reflist DEFAULTSORT Bowie Hotspot Category ... more details
Unreferenced stub auto yes date December 2009 A screen hotspot , in computing , provides a special area on the display screen of a computer for hyperlink ing or for other GUI based activity such as URL redirection re direction , pop up display, Macro computer science macro execution, etc . Hotspots may not look visually distinct however a mouseover operation will often reveal them by changing the shape of the Pointer computing WIMP pointer icon . See also image map . DEFAULTSORT Screen Hotspot Category Hypertext Computer stub ... more details
Image Hotspots.jpg right thumb 350px The Raton hotspot is marked 32 on map The Raton hotspot is a volcano volcanic hotspot geology hotspot which is responsible for the volcanic activity which forms the volcanoes in northeastern New Mexico , United States . The Raton hotspot is believed to have been the origin of the Raton Clayton volcanic field which is an extensive volcanic field with no observed activity in modern times. ref Cite web url http www.nmnaturalhistory.org volcano raton disc.html title Raton Clayton Capulin Volcano Volcanic Field with map publisher New Mexico Museum of Natural History and Science ref Trail The Jemez volcanic lineament Raton hotspot trail consists of the San Carlos volcanic field , Springerville volcanic field , Red Hill volcanic field , ref cite book last Wood first Charles A. coauthors J rgen Kienle title Volcanoes of North America publisher Cambridge University Press date 1993 pages 284 286 month isbn 0 512 43811 X ref Zuni Bandera volcanic field , Mount Taylor New Mexico Mount Taylor volcanic field , Jemez Mountains Jemez volcanic field and possibly the Ocate volcanic field , Raton Clayton volcanic field , and Mesa de Maya . There are few reliable age measurements of the oldest volcanic rocks. The Yellowstone hotspot trail was modified through Fault geology faulting and Extension geology extension of the Basin and Range Province , so this trail shows more accurately the movement of the North American Plate . ref name SI cite book authors W. Jason Morgan and Jason Phipps Morgan title Plate velocities in hotspot reference frame electronic supplement date publisher pages 111 url http www.mantleplumes.org P 5E4 P 5E4Chapters MorganP4ElectronicSupp1.pdf accessdate 2010 04 23 ref References Reflist External links http www.nps.gov cavo naturescience volcanofield.htm http www.cimarronnm.com Other 20PDF 20Files Capulin 20Volcano.pdf Capulin Volcano Volcanology stub NewMexico geo stub coord missing New Mexico Category Regional geology Category ... more details
Image Hotspots.jpg right thumb 450px The Balleny hotspot is marked 2 on map. The Balleny hotspot is a volcano volcanic hotspot geology hotspot located in the Southern Ocean . The hotspot created the Balleny Islands , which forms a chain that extends for about Convert 160 km mi abbr on in a northwest southeast direction. ref cite journal last1 Lanyon first1 Ruth coauthors Ruth Lanyon, Rick Varne and Anthony J. Crawford University of Tasmania date June 1993 title Tasmanian Tertiary basalts, the Balleny plume, and opening of the Tasman Sea southwest Pacific Ocean journal Geology publisher Geological Society of America volume 21 issue 6 pages 555 558 url http geology.geoscienceworld.org cgi content abstract 21 6 555 accessdate 2009 12 12 doi 10.1130 0091 7613 1993 021 0555 TTBTBP 2.3.CO 2 ref References reflist Category Hotspots of the Southern Ocean Category Regional geology Category Geography of the Balleny Islands volcanology stub marine geo stub ... more details
Image Hotspots.jpg right thumb 450px The Louisville hotspot is the southernmost one in the Pacific Ocean, marked 23 on this map. The Louisville hotspot is a volcano volcanic hotspot geology hotspot responsible for the volcanic activity that has formed the Louisville seamount chain in the southern Pacific Ocean . Location The Louisville hotspot is believed to lie close to the Pacific Antarctic Ridge , although its exact location is, however, uncertain. ref name SI http books.google.ca books?id JaV8V8mufhoC&pg PA19&dq louisville hotspot&source web&ots OejnIPTfR3&sig exdlrl5aubsWjieD21IrQYw06a8&hl en Mantle plumes and their record in earth history ref Geological history The Louisville hotspot has produced the Louisville seamount chain , which is one of the longest seamount chains on Earth, stretching some convert 4300 km mi 0 abbr on ref name Vanderkluysen Vanderkluysen, L. Mahoney, J. J. Koppers, A. A. and Lonsdale, P. F. 2007 . http adsabs.harvard.edu abs 2007AGUFM.V42B..06V Geochemical Evolution of the Louisville Seamount Chain , American Geophysical Union, Fall Meeting 2007, abstract V42B 06. ref from the Pacific Antarctic Ridge where it subducts under the Indo Australian Plate as part of the Pacific Plate . The Louisville hotspot is believed to have been active for at least 80 million years based on age of the Louisville seamount chain, which is comparable to that of the Hawaiian Emperor seamount chain , although the rate of volcanism at the two chains are relatively different ... SI During the Early Oligocene period, the Louisville hotspot s magma source rate was much steadier than the Hawaii hotspot rate, and had a lower total volume in eruption. During the Late Oligocene, the magma ... hotspot, the Louisville hotspot is believed to have decreased in activity with time. ref name SI The Louisville hotspot may have created the Ontong Java Plateau , the world s largest oceanic plateau , around 120 million years ago. The modelled locations of the plateau and hotspot at the time do not coincide ... more details
Image Hotspots.jpg right thumb 450px The Canary hotspot is marked 18 on map The Canary hotspot , also called the Canarian hotspot , is a volcano volcanic hotspot geology hotspot believed to be located at the Canary Islands off the north western coast of Africa , although alternative theories to explain the volcanism there exist. ref http www.aepect.org hemeroteca Canarias01 ing.pdf The Origin of the Canary Islands A chonology of ideas and related concepts from the Antiquity to the end of 20th century. ref The Canary hotspot is believed to be underlain by a mantle plume that is relatively deep. It is believed to have first appeared about 60 million years ago. ref http adsabs.harvard.edu abs 1991JGR....9612039H Effects of Canary hotspot volcanism on structure of oceanic crust off Morocco Retrieved on 2007 10 13 ref Recent activity From July to September 2011, the Canarian island of El Hierro experienced thousands of small earthquake tremor s, believed to be the result of magma movements beneath the island. This resulted in fears of an imminent volcanic eruption, which began October 10th, 2011, approximately 1km south of the island in a fissure on the floor of the ocean and is continuing with the possibility that a new island will form or an existing island become larger. ref http www.bbc.co.uk news magazine 15917740 Canary Island volcano A new island in the making? ref See also Surtsey References Reflist Category Hotspots of the Atlantic Ocean Category Regional geology Category Volcanism of the Canary Islands volcanology stub ... more details
File Mount Erebus in 2009.JPG thumb right An aerial image of Mount Erebus in 2009 The Erebus hotspot is a volcano volcanic hotspot geology hotspot responsible for the high volcanic activity on Ross Island in the western Ross Sea of Antarctica . Its current eruptive zone, Mount Erebus , has erupted continuously since its discovery in 1841. ref name SI http www.mantleplumes.org P 5E4 P 5E4Chapters MorganP4ElectronicSupp1.pdf Plate velocities in hotspot reference frame electronic supplement ref Magma s erupted from the Erebus hotspot are similar to those erupted from hotspots at the active East African Rift in eastern Africa . ref name SI Mount Bird at the northernmost end of Ross Island and Mount Terror Antarctica Mount Terror at its eastern end are large basalt ic shield volcano es that have been K Ar dating potassium argon dated to be 3.8&ndash 4.8 and 0.8&ndash 1.8 million years old. ref name SI The Erebus hotspot has been interpreted to be the cause of spreading at the Terror Rift . ref name SI Its mantle plume , estimated to be Convert 250 km mi abbr on to Convert 300 km mi abbr on in diameter, extends Convert 200 km mi abbr on below the surface where it changes into a narrow column that further extends Convert 400 km mi abbr on below the surface. ref name CV http www.sciencedirect.com science? ob ArticleURL& udi B7XNB 4VG7MWJ 2& user 10& coverDate 08 2F31 2F2009& rdoc 1& fmt high& orig search& sort d& docanchor &view c& searchStrId 1307473137& rerunOrigin google& acct C000050221& version 1& urlVersion 0& userid 10&md5 f5f13675704a7c48608ae7e0bceb4aca Seismic imaging of the upper mantle under the Erebus hotspot in Antarctica ref References reflist Category Hotspots of the Southern Ocean Category Geology of Antarctica Category Ross Island Volcanology stub regional geology stub RossIsland geo stub ... more details
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