Cayman may refer to Cayman Islands , an overseas territory of the United Kingdom Grand Cayman , Cayman Brac , or Little Cayman , three islands that are part of the Cayman Islands Porsche Cayman , a sports car produced by Porsche Alligatoridae , of which caiman is a genus. Northern Islands 28GPU family 29 Radeon HD 6900 AMD Radeon HD6900 GPU series, codenamed Cayman disambig de Cayman fr Cayman he ja pl Kajmany ... more details
For the scientific journal Geology journal File WasatchFault.JPG thumb 300px Students examining the Wasatch Fault near Salt Lake City , Utah . Geology from the Ancient Greek Greek , g , earth and , logos , study is the science comprising the study of solid Earth , the rock geology rocks of which it is composed, and the processes by which it evolves. Geology gives insight into the history of the Earth ... , and paleoclimatology past climates . In modern times, geology is commercially important for mining mineral and petroleum geology hydrocarbon exploration and for evaluating water resources is publicly ... Geology environmental problems, and for providing insights into past climate change plays an essential role in geotechnical engineering and is a major academic discipline . Geology is also a hobby ... Main History of geology Image Geological map Britain William Smith 1815.jpg thumb right William Smith ... York, NY title The map that changed the world William Smith and the birth of modern geology ref The study ... of amber . Some modern scholars, such as Fielding H. Garrison , are of the opinion that modern geology ... , and geology, but of many of the so called improvements or refinements of civilization, such as street ... included the earliest writings on the geology of India , hypothesizing that the Indian subcontinent ... to modern Geology, which provided an essential foundation for the later development of the science ... principles of stratigraphy . The word geology was first used by Ulisse Aldrovandi in 1603, ref http ... of the word geology Ulisse Aldrovandi 1603 in Bologna ref then by Jean Andr Deluc in 1778 and introduced ... Publishers year 2001 page 25 isbn 0 06 093180 9 ref But according to another source, the word Geology ... earth p hutton.html James Hutton The Founder of Modern Geology , American Museum of Natural History ... gradually dropped over time. Sir Charles Lyell first published his famous book, Principles of Geology ... Press location Chicago title Principles of geology ref in 1830. The book, which influenced the thought ... more details
ridge, known as the CaymanRidge or Cayman Rise . This ridge flanks the Cayman Trough , convert 6000 ...pp move indef Infobox country conventional long name Cayman Islands demonym Caymanian common name the Cayman Islands image skyline Cayman montage.jpg imagesize 1000px image caption From top to the bottom and from left to right The lighthouse, West Bay Road, Cayman National Bank, 7 Mile Beach, The Ritz ... flag Flag of the Cayman Islands.svg use Flag Flag of the Cayman Islands image coat Coat of arms of Cayman ... national anthem God Save the Queen official br National Song Beloved Isle Cayman official language English language English capital George Town, Cayman Islands George Town latd 19 latm 20 latNS N longd ... 5286.htm title Background Note Cayman Islands publisher State.gov date 2011 02 18 accessdate 2011 ... Governors of the Cayman Islands Governor leader name2 Duncan Taylor FCO Duncan Taylor leader title3 Premier of the Cayman Islands Premier leader name3 McKeeva Bush legislature Legislative Assembly of the Cayman Islands Legislative Assembly area km2 264 area sq mi 102 area rank 206th area magnitude ... YearbookInternal 140416 140424 cayman islands title Commonwealth Secretariat Cayman Islands publisher ... established date2 6 November 2009 currency Cayman Islands dollar currency code KYD time zone utc ... The Cayman Islands IPAc en icon k e m n or IPAc en k e m n is a British overseas territories ... islands of Grand Cayman , Cayman Brac , and Little Cayman , located south of Cuba and northwest of Jamaica . The Cayman Islands are considered to be part of the geographic Western Caribbean Zone ... archiveurl archivedate quote ref History Refimprove date July 2011 Main History of the Cayman Islands The Cayman Islands were first logged as sighted by Christopher Columbus on 10 May 1503 during ... Drake in 1586. He subsequently named the islands Cayman after caiman , a Neo Taino nations Neo Taino word for alligator . The Cayman Islands remained largely uninhabited until the 17th century. While ... more details
south Mid ocean ridgeridge which may be the result of an offset or gap of approximately convert 420 km along the main fault trace. The Cayman spreading ridge shows a long term opening rate of nowrap ... was the site of a subduction zone which formed the volcanic arc of the CaymanRidge and the Sierra ...NOTOC coord 18 30 N 83 0 W display title Image Cayman Trough.jpg thumb right 250px Satellite imagery Satellite image of the Cayman Trough. Image Gon ve microplate.png thumb right 250px Mid Cayman spreading centre as part of the trough, on the western edge of the Gon ve Microplate . The Cayman Trough , also known as the Cayman Trench , Bartlett Deep and Bartlett Trough is a complex transform fault zone pull apart basin which contains a small Divergent boundary spreading ridge on the floor of the western Caribbean Sea between Jamaica and the Cayman Islands . ref Einsele, Gerhard, Sedimentary Basins Evolution, Facies, and Sediment Budget, Springer, 2nd ed., 2000, p. 630 ISBN 978 3540661931 ref It is the deepest point in the Caribbean Sea and forms part of the tectonics tectonic boundary between the North American Plate and the Caribbean Plate . It extends from the Windward Passage , going south ... . The Gon ve plate extends from the spreading ridge east to the island of Hispanola . It is bounded ... seafloor spreading crustal thickness variations and transitional crust in Cayman Trough from ..., H. H. 1994 Reefs and lagoons of Grand Cayman Monographiae biologicae Brunt, MA Davies, JE eds . Kluwer ... and Tectonics of the Mid Cayman Spreading Center , http adsabs.harvard.edu abs 2003EAEJA....12580R ... 100 mya Present Collision of Cuba with Florida Platform and Opening of the Cayman Trough. PALEOMAP ... Category Extreme points of Jamaica Category Landforms of the Cayman Islands Category Oceanic trenches ... of the Cayman Islands da Caymanrenden de Kaimangraben es Fosa de las Caim n eu Kaiman uharteetako fosa fr Fosse des Ca mans lt Kaiman lovys pl R w Kajma ski pt Fossa Cayman ru sv Caymangraven ... more details
Unreferenced stub auto yes date December 2009 Cayman Creole is an English based creole language spoken on Cayman Islands in the Caribbean . The number of speakers of Cayman Creole is below 100,000. Cayman Creole does not have the status of an official language. See also Bajan Creole Bermudian English Jamaican English Anglophone Caribbean Creoles Category Languages of the Cayman Islands Category Caymanian society Category English based pidgins and creoles Category Languages of the Caribbean Pidgincreole lang stub ... more details
Refimprove date August 2008 File Little Cayman from air.JPG 200px thumb right Little Cayman from the air Little Cayman is an island that is part of the Cayman Islands . It is located in the Caribbean Sea , exactly 58 miles northeast of Grand Cayman and five miles 8 km west of Cayman Brac . Little Cayman ... . History The first recorded sighting of Little Cayman, along with Cayman Brac, was by Christopher ... Cayman and exported phosphate ore , coconut s, and marine rope . Attractions Diving Little Cayman is famous ... 314 m , ref http www.huntzinger.com dive Little Cayman depths 2.jpg Little Cayman Navigational Chart ... and a bit beyond . The sheer wall dropoffs in Little Cayman, and Bloody Bay Wall in particular, have ... charted to be approximately one mile offshore on Little Cayman s South side, and convert 2.5 mi ... Dive Propulsion Vehicles. This exaggeration phenomenon also exists on Cayman Brac Walls. Owen Island A small islet just off the south coast of Little Cayman can be visited via sailboat or kayak. The islet does not have any human habitation, homes or buildings. Accessibility and Services Little Cayman is accessible by air via Cayman Airways and water from both Cayman Brac and Grand Cayman . Little Cayman has two grocery stores, a few restaurants mostly located at the resorts, Edward Bodden Airfield the airport , a post office, a fire station, and one church. Little Cayman also has a visitor ... . Fauna Other important species present on Little Cayman include the endangered Cyclura nubila ... are also present to a lesser degree on nearby Cayman Brac as well. References references External links wikitravel Little Cayman https www.cia.gov library publications the world factbook geos cj.html Geo CIA World Factbook entry on Grand Cayman updated May 2, 2006 http www.gov.ky Cayman Islands Government website of Cayman Islands Government coord 19 41 N 80 03 W display title region KY type isle source dewiki Category Islands of the Cayman Islands Category Ramsar sites in the Cayman Islands ... more details
Infobox islands name Grand Cayman image name grand cayman.jpg image caption Grand Cayman from space, April 1994 image size locator map Location map Cuba lat 19.333333 long 81.216667 caption Grand Cayman ... title British Overseas Territory country admin divisions flag Cayman Islands country admin divisions ... capital country largest city George Town, Cayman Islands George Town country largest city population ... 19 20 N 81 13 W type isle display title Grand Cayman is the largest of the three Cayman Islands and the location of the nation s capital, George Town, Cayman Islands George Town . In relation to the other two Cayman Islands, it is approximately 75 miles 121 km southwest of Little Cayman and 90 miles 145 km southwest of Cayman Brac . Geography Grand Cayman encompasses 76 of the country ... long. ref http www.caymanislands.ky tour guide about location.aspx Cayman Islands Tourism website ref ... point on Grand Cayman ref Island districts File Red bay dock and piers.jpg thumb right 225px Red Bay Dock and adjacent piers, Sound Sound district br Grand Cayman Island consists of six districts Bodden Town, Cayman Islands Bodden Town , East End, George Town, Cayman Islands George Town , North Side, Sister Islands, and West Bay, Cayman Islands West Bay . ref http www.statoids.com uky.html Statoids.com ... of Grand Cayman Island. The village of Bodden Town was the original capital of the Cayman Islands. Its ... of Grand Cayman Island and consists mostly of the Village of East End, numerous natural attractions ... of the Cayman Islands and world famous center for off shore banking and investments, its population ... is currently listed at 1,079. Sister Islands The district consists of Cayman Brac and Little Cayman ... the Cayman Turtle Farm. Towns in the West Bay district include Seven Mile Beach, Grand Cayman Seven Mile Beach , Hell, Grand Cayman Hell and West Bay Village. Its population is currently listed at 8,243 ... Cayman Island Of the flora, a good representation of the variety of plant life on Grand Cayman can ... more details
Infobox Airline airline Cayman Airways logo Logo & tail.jpg logo size 258 IATA KX ICAO CAY callsign CAYMAN hubs Owen Roberts International Airport parent Cayman Islands Government founded 1968 as Cayman ... Town, Cayman Islands George Town , Grand Cayman , Cayman Islands frequent flyer Sir Turtle Rewards ... key people Fabian Whorms CEO Cayman Airways is the national flag carrier of the Cayman Islands . With its head office in Grand Cayman , ref http www.caymanairways.com company contact us Contact Us . Cayman Airways. Retrieved on 19 October 2009. ref it operates mainly as an international and domestic ... are based at Owen Roberts International Airport in George Town, Grand Cayman . ref name FI Flight International 3 April 2007 ref The airline also offers a limited charter service. History File Cayman ... operations on August 7, 1968. It was formed following the Cayman Government s purchase of 51 of Cayman ... in George Town, Cayman Islands George Town, Grand Cayman to Gerrard Smith International Airport on Cayman Brac . Early on, the airline s aircraft was a single Douglas DC 3 DC 3 . A few months after it was formed, Cayman Airways flew its first international route to Kingston, Jamaica, on a leased ... during the 1980s, Cayman Airways offered scheduled or charter service to Atlanta, Baltimore ... throughout the early 1990s, however financial assistance from the Cayman Islands Government, financial ... stickers by Cayman Islands Customs and also became the logo of the Department of Tourism which ... the Tortuga Club on the East End of Grand Cayman. The red flying scarf was later added to Sir Turtle in 1978 by Capt. Wilbur Thompson, the Chief Pilot of Cayman Airways at the time, and that modified Sir Turtle became the airline s new logo. Citation needed date July 2011 Destinations Main Cayman Airways ... Cayman Airways Fleet bgcolor blue font color white Aircraft font color white In Fleet font color ... DHC 6 Twin Otter Series 300 align center 2 align center 0 Domestic Short Haul br Cayman Islands Total ... more details
Coord 19 20 N 81 13 W type isle display title Cayman Brac is an island that is part of the Cayman Islands . It lies in the Caribbean Sea about 90 miles 145 km northeast of Grand Cayman and 5 miles 8 km east of Little Cayman . It is about 12 miles 19 km long, with an average width of 1 mile 2 km . Its terrain is the most prominent of the three Cayman Islands due to The Bluff , a large ... been left to decay on the south coast of Cayman Brac. History Christopher Columbus sighted Cayman Brac and its sister island, Little Cayman , on 10 May 1503 when his ship was blown off course during ... spotted on the islands. The Cayman Islands were renamed by Sir Francis Drake, who came upon the islands ... , pirates would use Cayman Brac as a haven and a place to replenish their supplies as there are a number ... frigate was purchased and sunk by the Cayman Islands government in September 1996. Originally designated 356 , the frigate was rechristened the M V Captain Keith Tibbetts , after a well known Cayman Brac ... dive sites are Radar Reef, Cemetery Wall, and the Wilderness Wall ref http cayman islands.greatestdivesites.com cayman brac GDS Dive Directory Dive Sites Cayman Brac ref , all well covered in corals and with a wide diversity of marine life. Caves Cayman Brac also appeals to visitors of many ... , and it is a Cayman National Heritage Site. Rock Climbing Rock climbing was developed beginning .... Fishing Cayman Brac s waters are especially utilized for both fishing and the pursuit of big ... on the Brac, the government including Cayman Airways, the National carrier is the largest employer. Some of the more economically prominent families in Grand Cayman originate from Cayman Brac, namely ... Category 4 Hurricane Paloma in November 2008. A local enterprise that is nearly unique to Cayman Brac ... http www.cayman27.com.ky news item 9580 26 April 2011 Cayman27 News Story ref who grew up on Cayman Brac and is currently living on Grand Cayman. Education Cayman Islands Education Department operates ... more details
mergefrom Porsche Cayman R discuss Talk Porsche Cayman Merge proposal date August 2011 Globalize date December 2010 Infobox automobile name Porsche Cayman image Image Porsche Cayman S.jpg 250px Porsche Cayman S manufacturer Porsche parent company aka Porsche 987c production 2005 present model years assembly ... Pinky Lai sp uk The Porsche Cayman is a Rear mid engine, rear wheel drive layout mid engined, rear ... , the Cayman is a coup derived from Porsche s second generation Porsche Boxster Boxster convertible ... stated that their contract with Valmet Automotive will end in 2012, and the Cayman s production will be outsourced ... 2008 06 26 publisher Metso Corporation ref Image 2006 Cayman S.jpg thumb 250px middle 2006 Cayman S Development ... was the Cayman S type 987120 . Photographs and technical details were released in May 2005 ..., the Cayman 987110 , went on sale in July 2006. A motorsport tuned model, the Cayman RS , is rumored to have been tested at the N rburgring that same year. ref cite web title Porsche Cayman RS in the works? url http www.autoblog.com 2006 05 15 porsche cayman rs in the works work Autoblog accessdate February 9, 2007 ref The Cayman coup project 987c and the second generation Boxster convertible ... lid, side doors, headlights, taillights and forward portion of the interior. The design of the Cayman ... 904 904 Coup . ref cite web title 2006 Porsche Cayman S url http www.sport cars.org articles porsche porsche cayman s.php work sport cars.org accessdate February 9, 2007 ref ref cite web title Test Drive 2007 Porsche Cayman S url http www.champweb.net index.php?option com content&task view&id 115&Itemid 62 work Champweb.net accessdate February 9, 2007 ref Unlike the Boxster, the Cayman has a large ... appropriate to the increase in chassis stiffness resulting from the Cayman s fixed roof. The 3.4 litre flat 6 boxer engine M97.21 in the first generation Cayman S was derived from the 3.2 litre ... Cayman G87.01 , while a 6 speed manual Getrag 466 is the default for the S G87.21 and an option ... more details
Unreferenced date September 2009 In geology, a trough generally refers to a linear structural geology structural depression that extends laterally over a distance, while being less steep than a oceanic trench trench . A trough can be a narrow Basin geology basin or a geologic rift . There are various oceanic troughs , troughs found under ocean s examples include the rift along the mid oceanic ridge and the Cayman Trough . See also Walker Lane DEFAULTSORT Trough Geology Category Geomorphology Category Geology terminology Category Landforms geology stub ko kk ja simple Trough geology zh ... more details
about the use of the term in geography and physical geology File North Ridge of Mount Rohr.jpg thumb A hiker standing on a mountain ridge File Tsubakurodake from Otenshodake 2002 8 22.jpg thumb A mountain ridge in Japan A ridge is a geological feature consisting of a chain of mountains or hills that form a continuous elevated crest for some distance. Ridges are usually termed hill s or mountain s as well, depending on size. There are several main types of ridges Dendritic drainage Dendritic ridge In typical dissected plateau terrain, the stream drainage valleys will leave intervening ridges. These are by far the most common ridges. These ridges usually represent slightly more erosion resistant rock, but not always they often remain because there were more Joint geology joint s where the valleys formed, or other chance occurrences. This type of ridge is generally somewhat random in orientation, often changing direction frequently, often with knobs at intervals on the ridge top. Stratigraphic ridge In places such as the Ridge and valley Appalachians , long, even, straight ridges are formed ... geology folded laterally. Similar ridges have formed in places such as the Black Hills , where the ridges form concentric circles around the igneous core. Sometimes these ridges are called Hogback geology hogback ridges . Mid ocean ridge Oceanic spreading ridge In tectonic spreading zones around the world, such as at the Mid Atlantic Ridge , the volcanic activity forming new plate boundary forms ... central caldera s that are bordered by circular ridges. Fault ridges Fault geology Faults often ... in the form of moraine s and esker s. An ar te is a thin ridge of rock that is formed by glacial erosion ... erupts through a thick glacier or ice sheet . Shutter ridges A Shutter ridge is a ridge which has moved along a fault line, blocking or diverting drainage. Typically, a shutter ridge creates a valley ... http interridge.org InterRidge An initiative for international cooperation in ridge crest studies ... more details
The Ridge may refer to United States The Ridge Ridgeville, Georgia , List of RHPs in GA listed on the NRHP in Georgia The Ridge Derwood, Maryland , listed on the NRHP in Maryland The Ridge Manchester, Ohio , List of RHPs in OH listed on the NRHP in Ohio India Delhi Ridge , a forested ridge in Delhi , India that shields the city of Delhi from desert winds from Rajasthan See also Major Ridge , a.k.a. The Ridge , Pathkiller II, or Ganundalegi , a Cherokee Indian leader disambig de The Ridge ... more details
Infobox mountain name Ridge A other name photo noimage.svg photo size photo alt photo caption elevation elevation m 4053 elevation ft elevation ref prominence prominence m prominence ft prominence ref listing range parent peak location Antarctic Plateau map map alt map caption map size label label position lat d lat m lat s lat NS long d long m long s long EW region coordinates coordinates ref grid ref UK grid ref Ireland topo type volcanic arc belt age last eruption first ascent easiest route Ridge A is a site in Antarctica that was identified in 2009 as the best suited location on the surface of Earth for astronomical research. ref name Saunders et al. 2009 Citation last Saunders first Will last2 Lawrence first2 Jon S. last3 Storey first3 John W. V. last4 Ashley first4 Michael C. B. last5 Kato first5 Seiji last6 Minnis first6 Patrick last7 Winker first7 David M. last8 Liu first8 Guiping last9 Kulesa first9 Craig lastauthoramp yes year 2009 title Where Is the Best Site on Earth? Domes A, B, C, and F, and Ridges A and B journal Publications of the Astronomical Society of the Pacific volume 121 issue 883 pages 976 992 doi 10.1086 605780 issn bibcode 2009PASP..121..976S ref The site, approximately convert 1000 km mi from the South Pole and convert 144 km mi southeast of Dome A , ref name wond citation title Ridge A best place for astronomy research on Earth publisher Wondermondo date .... 2009 ref name wond Ridge A was identified by a team of Australian and American scientists searching ... 1, 2009. Accessed September 9, 2009. ref Ridge A is a low ridge of ice and has been estimated to have ... off Antarctica in all directions appear to start from a point at Ridge A, where winds are at their calmest ... Who date February 2011 on the project suggested that photographs taken through a telescope at Ridge ... on Antarctica and the remote location of Ridge A, construction costs for an observatory there that could ... de Ridge A pl Ridge A fi Vuorijono A vi Ridge A ... more details
Image Fault Horst Graben.svg right frame USGS image In physical geography and geology , a horst German Horst heap is the raised fault block bounded by normal Fault geology fault s or graben . A horst is formed from extension of the Earth s crust. The raised block is a portion of the Crust geology crust that generally remains stationary or is uplifted while the land has dropped on either side. The Vosges Mountains in France and Black Forest in Germany are examples of horsts, the Table, Jura Mountains Jura and the D le mountains results of the latter. The word is also applied to those larger areas, such as the Russian Plain , Arabia , India and Central South Africa , where the continent remains stable, with horizontal table land Stratigraphy stratification , in distinction to folded regions such as the Eurasia n chains. Horsts and hydrocarbon exploration In many rift basin s around the world, the vast majority of discovered hydrocarbon s are found in conventional traps associated with horsts. Citation needed date August 2011 For example, much of the petroleum found in the Sirte Basin in Libya of the order of tens of billions of barrels of reserves are found on large horst blocks such as the Zelten Platform and the Dahra Platform and on smaller horsts such as the Gialo High and the Bu Attifel Ridge. See also Basin and Range Fault block mountain Graben Plateau References 1911 Category Structural geology Category Geology terminology Category German words and phrases geology stub bg cs Hr s da Horst de Horst Geologie et lang es Macizo tect nico eu Horst fa fr Horst ko id Horst it Horst he kk nl Horst geologie ja nn Horst pl Zr b tektoniczny pt Horst ru sk Hras sh Horst fi Horsti sv Horst uk zh ... more details
Image Iceland Mid Atlantic Ridge Fig16.gif 300px thumb The geology of Iceland is unique and of particular interest to geologist s. Iceland lies on the geologic rift between the Eurasian plate and the North American plate . It also lies above a hotspot geology hotspot , the Iceland plume , which is believed to have caused the formation of Iceland itself. The result is an island of volcanism and Geothermal geology geothermal phenomena such as geyser s. The eruption of Laki in 1783 caused much devastation and loss of life and affected Europe. In the period 1963 to 1967 the new island of Surtsey was created on the southwest coast by a volcanic eruption. Chronology Opening of the North Atlantic Iceland plume Iceland hotspot Rifting of the north Atlantic Cenozoic fossiliferous strata Vegetational changes Past climate Origin of the strata Fossil preservation Glaciations Glacier extent Nunataks and icefree areas Interglacials Tuyas and subglacial volcanism Holocene changes and volcanism Revegetation Increased volcanism Pedogenesis Soil fomation Post glacial rebound Isostatic rebound Holocene sediments Coastal erosion Human impact and natural catastrophes Overgrazing Soil erosion J kulhlaup s Fluorosis Laki eruption 2008 Iceland earthquake Deforestation Geothermal energy use Current climate change General glacier retreat Tree line rise Sea level rise Current tectonics Rift jump Seismic activity Volcano tectonics See also Geography of Iceland Fjords of Iceland Geothermal power in Iceland Glaciers of Iceland Iceland plume Lakes of Iceland List of islands of Iceland List of volcanoes in Iceland Rivers of Iceland Volcanism in Iceland Waterfalls of Iceland External links http www.union.edu PUBLIC GEODEPT COURSES petrology labs iceland iceland.htm Maps and illustrative photos from Union College Iceland topics state autocollapse Geology of Europe Category Geology of Iceland regional geology stub fr G ologie de l Islande ... more details
Image oceanic spreading.svg thumb 250px right Oceanic crust is formed at an oceanic ridge, while the lithosphere is subducted back into the asthenosphere at trenches. Marine geology or geological oceanography involves geophysical , geochemistry geochemical , sedimentology sedimentological and paleontological investigations of the ocean floor and coastal margins. Marine geology has strong ties to physical oceanography . Marine geological studies were of extreme importance in providing the critical evidence for sea floor spreading and plate tectonics in the years following World War II. The deep ocean floor is the last essentially unexplored frontier and detailed mapping in support of both military submarine objectives and economic petroleum and metal mining objectives drives the research. Overview Image Marianatrenchmap.png thumb left A trench forms at the boundary where two tectonic plates meet The Pacific Ring of Fire Ring of Fire around the Pacific Ocean with its attendant intense volcanism and seismic activity poses a major threat for disastrous earthquake s, tsunami s and volcanic eruptions. Any early warning systems for these disastrous events will require a more detailed understanding of marine geology of coastal and island arc environments. The study of littoral and deep sea ... of Mid oceanic ridge mid ocean rift zone volcanism and hydrothermal vent s, first in the Red Sea and later along the East Pacific Rise and the Mid Atlantic Ridge systems were and continue to be important ..., 1996, Marine Geology Undersea Landforms and Life Forms , Facts on File ISBN 0 8160 3354 4 Seibold, E. and W.H. Berger, 1994, The Sea Floor An Introduction to Marine Geology , Springer Verlag ISBN 0 ... Across the USGS http www.ngdc.noaa.gov mgg aboutmgg aboutwdcmgg.html Marine Geology and Geophysics NOAA ... www research mgg Marine Geology and Geophysics at MIT http www odp.tamu.edu Ocean Drilling Program physical oceanography expanded other Category Oceanography Category Marine geology ca Geologia marina ... more details
Wikify date November 2010 File Tens.tif right Diagram of Geologic Tension In geology , the term tension refers to a stress mechanics stress which stretches rocks in two opposite directions. The rocks become longer in a lateral direction and thinner in a vertical direction. One important result of tensile stress is jointing in rocks. However, tensile stress is rare because most subsurface stress is compressive, due to the weight of the overburden. Jointing Tensile stress forms joints in rocks. A joint geology joint is a fracture that forms within a rock, whose movement to open the fracture is greater than the lateral movement that takes place. Joints are formed in the direction perpendicular to the least principal stress, meaning that they are formed perpendicular to the tensile stress. ref Chrowder, Thomas and Rollin D. Salisbury Chamberlin. Geology Geologic Processes and their results. 2nd ed. New York Henry Holt and Company, 1909. Print. ref One way in particular that joints can be formed is due to fluid pressure, as well as at the crest of folds in rocks. This occurs at the peak of the fold or due to the pressure Fluid pressure fluid pressure because a localized tensile stress forms, eventually leading to jointing. ref Secor, Donald. Role of Fluid Pressure in Jointing . Columbia, South Carolina University of South Carolina, Columbia, 1965. eBook. ref Another way in which joints form is due to the change in the weight of the overburden . Since rocks lay under a great deal of overburden, they undergo high temperatures and high pressures. Over time, the rocks are erosion eroded ... understanding.html ref Much of the force that pushes the two plates apart is due to ridge push ... the mid ocean ridgeridge axis. The cooling and sinking ocean crust causes a tensile stress that also helps drive the pulling apart of the plates at the ridge axis. References references Category Structural geology Category Geological processes Category Geologic stress geology stub ... more details
Geology of Georgia may refer to Geology of Georgia U.S. State Geology of Georgia country disambig Long comment to avoid being listed on short pages ... more details
The geology of Cheshire in England consists mainly of Triassic sandstone s and mudstone s. To the north west of Cheshire , these rocks are heavily fault geology faulted and the underlying Carboniferous Coal Measures are thrown up. Around the areas of Poynton and Macclesfield , the coal is close to the surface and was easily mined. Below the Coal Measures is the Millstone Grit , which appears towards the Derbyshire border on the flanks of the Peak District Dome geology dome . ref cite journal last Macchi first L. coauthors title A Field Guide to the Continental Permo Triassic Rocks of Cumbria and Northwest Cheshire journal Liverpool Geological Society, Liverpool issue pages 88 pages date 1990 id accessdate ref The Cheshire Basin is a major sedimentary basin which comprises the larger part of the county. This fault bounded graben half graben structure is bounded to the east and southeast by a series of faults of which the most significant is the Red Rock Fault . Numerous faults trend north south through the basin, some of which help to define the series of hills which are known collectively as the Mid Cheshire Ridge . The basin was flooded on several occasions in the Permian and early Triassic periods resulting in the laying down of massive halite salt beds. These beds have been mined both by cavern working and hot water brine extraction for over 200 years, mainly in the area around ... F. title The geology of the Country around Stockport and Knutsford journal Memoir of the Geological ... fluvial sands and gravels, such as the Mid Cheshire Ridge and Alderley Edge . Rocks of Permian age ... along the Mid Cheshire Ridge such as that known as Urchin s Kitchen near Kelsall whilst larger ... and accompanying memoirs ref References reflist See also Geology of the United Kingdom Geology of England List of geology of English counties Geology of Shropshire Geology of Alderley Edge Cheshire Category Geology of Cheshire ... more details
cite web url http www.britannica.com eb topic 145944 cuesta title Cuesta, or homoclinal ridgegeology ... ridge face. A cuesta is a homoclinal ridge with a more gentle dip slope. ref name Divener cite web ... , encircle a dome geology dome . The Dakota Hogback Dakota Sandstone Hogback encircles the Black ... Hogback ridge formed when the resistant layers of the Dakota Sandstone and underlying layers ... separates the surrounding flat plain s from the two mile wide Red Valley trench of the Black Hills. The ridge ... Mountain itself, much like the Black Hills, is a laccolith formed by the intrusion geology intrusion of magma into the Earth s crust geology crust Cleland, 354 355 . The hogbacks surrounding the mountain .... Johnson Printing Company, Boulder, Colorado. Cleland, H. F., Ph.D. 1916 Geology, Physical and Historical ... more details
Unreferenced stub auto yes date December 2009 In geology a sag , or Trough geology trough , is a depressed, persistent, low area the opposite of an arch, or ridge , a raised, persistent, high area. The terms sag and arch were used historically to describe very large features, for example, characterizing North America as two arches with a sag between them. ref cite journal journal Nature date August 18, 1892 volume 46 issue 1190 url http books.google.com books?id c9EKAAAAYAAJ accessdate September 17, 2011 author Charles Lapworth page 377 format Opening address by head of the Geology Section quote ...the geographical surface of North America, considered as a whole, is in reality that of a double arch, with a sag or common trough in the middle. ref Also, a sag is a former river bed which has been partially filled with debris from glacier glaciation or other natural processes but which is still visible in the surface terrain. Sags formed by the former river beds of large rivers often become the valleys of smaller streams after a change of course by the main river. Examples of sags include the former continuations of the Grand River South Dakota Grand , Moreau River Moreau and White River South Dakota White rivers in South Dakota in the United States . Before the last ice age these rivers continued eastward past their current confluences with the present course of Missouri River . The sags are prominently visible on the plateau of the Coteau du Missouri , allowing small streams to drain into the Missouri from its eastern side. Notes reflist DEFAULTSORT Sag Geology Category Geomorphology Geomorph stub ... more details
Murchison and Adam Sedgwick used their studies of the geology of Wales to establish certain principles ... to east Moel Hebog , Mynydd Mawr and the Nantlle Ridge the Snowdon massif the Glyderau , and the Carneddau ... geology Dome , which includes the Rhinogydd, is formed of Cambrian gritstones and mudstones. Elsewhere ... of Wales, north and south. Geology of South Wales South Wales has a written record of geological interest ... rocks. Several successive Period geology periods are represented. Pembrokeshire has outcrops of both Pre Cambrian and Cambrian rocks. A notable feature of the Ordovician system is a major Depression geology ... 795 m , and Fan y B g 719 m . These summits form a long ridge which forms a horseshoe around the head .... The Brecon Beacons are made of Devonian Old Red Sandstone . Cefn Bryn lang en Ridge Hill is a convert 5 mi km sing on long Old Red Sandstone ridge in the heart of the Gower Peninsula . The highest point on the ridge 186m is the second highest point in Gower. The grassland on the ridge is known ... immediately below the boundary. See also Geology of the British Isles Geology of England Geological ... Roderick Murchison Changed the Face of Geology Brocken Spectre Publishing, 2004, ISBN 0 9546829 0 ... James A. Secord , Controversy in Victorian Geology The Cambrian Silurian Dispute Princeton University ... s movements not available without registration Geology of Europe DEFAULTSORT Geology Of Wales Category Geology of Wales Category Geology of the United Kingdom Category Historical continents Category ... more details
Women in geology concerns the history and contributions of women to the field of geology. There has been a long history of women in the field, but they have tended to be underrepresented. In the era before the eighteenth century science and geological science had not been as formalized as they would become later. Hence early geologists tended to be informal observers and collectors, whether they were male or female. Notable examples of this period include Hildegard of Bingen who wrote works concerning stones and Barbara Uttman who supervised her husband s mining operations after his death. Mrs. Uttman was also a relative of Georg Agricola . In addition to these names varied aristocratic women had scientific collections of rocks or minerals. ref http scholar.google.com scholar?hl en&lr &safe active&q cache ukoUCvXy3IkJ www.episodes.org Back 2520Issues 243 182 19.pdf On the origin of women geologists by means of social selection German and British comparison ref In the nineteenth century a new professional class of geologists emerged that included women. In this period the British tended to have far more women of significance to geology. ref http www.ingentaconnect.com content geol pga 2006 00000117 00000001 art00004 British women who contributed to research in the geological sciences in the nineteenth century ref In 1977 the Association for Women Geoscientists was formed to support women in this field as they remained underrepresented. There have been advances since then although retention remains a problem. Female geologists Claudia Alexander Notable member of the Association for Women Geoscientists Florence Bascom First woman hired by the United States Geological Survey . Etheldred Benett Early female geologist in Britain. Robbie Gries Former president of the American Association ... ref Marie Tharp A discoverer of the Mid ocean ridge Janet Vida Watson Lyell Medal , Bigsby Medal ... of Women Geoscientists Category Women scientists Geology Category Women earth scientists Category ... more details
The geology of the Netherlands describes the geologic timescale geological sequence of the Netherlands . Large parts of the Netherlands today are below sea level and have in the past been covered by the sea or flooded at regular intervals. The modern Netherlands formed as a result of the interplay of the four main rivers Rhine , Meuse , Schelde and IJssel and the influence of the North Sea . The Netherlands is mostly composed of river delta deltaic , coast al and Aeolian processes eolian derived sediments during the Pleistocene glacial and interglacial periods. Fairly all of the west Netherlands is composed of the Rhine Meuse river estuary , but civilisation human intervention greatly modified the natural processes at work. Most of the western Netherlands is below sea level due to the human process of turning standing bodies of water into usable land, a polder . In eastern Holland, remains are found of the last ice age , which took place approximately ten thousand years ago. As the continental ice sheet moved in from the north, it pushed moraine forward. The ice sheet halted as it covered the eastern half of the Netherlands. After the ice age ended, the moraine remained in the form ... Image Netherlands Map.svg thumb 250px Map of the Netherlands Paleozoic Era Rock geology Rock s from ... shaped moraine forms the Utrecht Hill Ridge Dutch Utrechtse Heuvelrug and the river influence is still ... . The south of the Netherlands is topographically higher and is linked to the geology of the Ardennes .... External links http www.deltawerken.com Geology of the Netherlands 112.html Geology of the Netherlands http www.soton.ac.uk imw jpg eurogy.jpg Geology map of Europe Reference aut Wong, Th.E. Batjes, D.A.J. & Jager, J. de 2007 Geology of the Netherlands , Koninklijke Nederlandse Akademie van Wetenschappen KNAW , ISBN 9069844818 Geology of Europe Category Geography of the Netherlands Category Environment of the Netherlands Category Geology of the Netherlands de Geologie der Niederlande ... more details
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