
	Where results make sense

Topic: Ocean Ridge

Related Topics

Oceanic ridge

Ridge

Gakkel Ridge

Tea table

List of oceanic trenches

Landform

Natural arch

Japan Trench

Valley

Emperor Seamounts

Cliff

Himalaya Mountains

Lowell Line

Arete (landform)

In the News (Mon 7 Dec 09)

Northern Trust

Marvin Harrison

Peter Chernin

Gary Locke

Match Play

Penelope Cruz

Mickey Rourke

AR Rahman

Danny Boyle

Hugh Jackman

	Developing the theory [This Dynamic Earth, USGS]
		Before the 19th century, the depths of the open ocean were largely a matter of speculation, and most people thought that the ocean floor was relatively flat and featureless.
		In 1961, scientists began to theorize that mid-ocean ridges mark structurally weak zones where the ocean floor was being ripped in two lengthwise along the ridge crest.
		In effect, the ocean basins were perpetually being "recycled," with the creation of new crust and the destruction of old oceanic lithosphere occurring simultaneously.
	pubs.usgs.gov /gip/dynamic/developing.html (1866 words)

	Mid ocean ridge plate tectonics (Site not responding. Last check: )
		The shape of the new seafloor depends on the spreading rate and on the composition of the rock rising from beneath.
		All ridge regions contain cracks and fissures through which lava and super-hot fluids rise.
		Mountains in the ocean were only discovered after the Second World War, when ships and submarines started using sonar to map the seafloor.
	www.venturedeepocean.org /vents/moving.html (496 words)

	Geotimes - December 2002 - Mid-Ocean Ridge World (Site not responding. Last check: )
		From its inception, RIDGE recognized that collaboration among scientists from different disciplines and integration of data from different regions and on different spatial scales were paramount to achieving the ambitious scientific objectives.
		Interdisciplinary interactions are built into the Ridge 2000 science plan and the scientific motivation is encapsulated by the phrase, “from mantle to microbes.” This phrase expresses the inextricable linkages among the processes of planetary renewal in the deep ocean and the origin, evolution and sustenance of life in the absence of sunlight.
		Hassler is the Ridge 2000 program coordinator (e-mail her at dhassler@psu.edu); Goehring is the Ridge 2000 education and outreach coordinator (e-mail her at exg15@psu.edu); and Fisher is a professor of biology (e-mail him at cfisher@psu.edu).
	www.geotimes.org /dec02/feature_ridge.html (2982 words)

	Palm Beach County Department of Environmental Resources Management - Ocean Ridge Natural Area (Site not responding. Last check: )
		In June 2001 a lease agreement with the Town of Ocean Ridge was approved for Palm Beach County to restore mangrove wetlands, create recreational amenities, and provide for the long term management of 12.35 acres owned by the Town.
		This parcel, the Ocean Ridge Natural Area, is connected to a 12.5 acre mangrove mitigation project.
		Channels and inlets connecting to the ocean were dredged, converting the fresh water lake and marsh system to a brackish water lagoon surrounded by sprawling urban development.
	www.co.palm-beach.fl.us /erm/enhancement/oceanridge.asp (721 words)

	ScienceDaily: Oceanography Articles
		An ocean current is any more or less permanent or continuous, directed movement of ocean water that flows in one of the Earth's oceans.
		A mid-ocean ridge or mid-oceanic ridge is an underwater mountain range, formed by plate tectonics.
		Ocean acidification is the name given to the ongoing decrease in the pH of the Earth's oceans, caused by their uptake of anthropogenic carbon dioxide from the atmosphere.
	www.sciencedaily.com /articles/earth_climate/oceanography (593 words)

	Mid-ocean ridges
		The mid-ocean ridge consists of thousands of individual volcanoes or volcanic ridge segments which periodically erupt.
		A typical ridge eruption leaves behind a dike that is 10s of centimeters up to 2 meters in width, extending between the crustal magma chamber and the eruptive fissure at the surface.
		At the Juan de Fuca Ridge, the spreading process creates an average width of ~6 m of new crust in 100 years.
	www.pmel.noaa.gov /vents/nemo/explorer/concepts/mor.html (358 words)

	Ocean Regions: Ocean Floor - Mid-Ocean Ridge
		The mid-ocean ridge is two chains of mountains separated by a large depression (or rift valley) that form at a spreading center (or where two plates are drifting apart).
		Iceland, along the mid-Atlantic Ridge, is an example of this.
		In fact, some are so tall that their peaks pierce the ocean surface forming a volcanic island or, if there are more than one seamount, a volcanic island chain (think of the Hawaiian Islands).
	www.onr.navy.mil /focus/ocean/regions/oceanfloor6.htm (244 words)

	NOAA Ocean Explorer: GalAPAGoS: Where Ridge Meets Hotspot
		The mid-ocean ridge system is the most extensive chain of mountains on earth, but more than 90% of this mountain range lies in the deep ocean.
		Mid-ocean ridges are geologically important because they occur along the kind of plate boundary where new ocean floor is created as the plates spread apart.
		Thus the mid-ocean ridge is also known as a "spreading center" or a "divergent plate boundary." The plates spread apart at rates of 1 cm to 20 cm per year.
	oceanexplorer.noaa.gov /explorations/05galapagos/background/mid_ocean_ridge/mid_ocean_ridge.html (1109 words)

	Ocean AdVENTure! - Geology
		Sometimes the plates come together until one slips under the other, or subducts, to be recycled in the magma; both deep ocean trenches and high mountains are formed in the process.
		When the plates under the ocean move apart, magma rises, often violently, from inside the earth's mantle to fill the gap, solidifies quickly in the icy sea water, and forms new crust.
		An estimated 20 cubic kilometers (4.8 cubic miles) of molten basalt are produced each year by this spreading that "repaves" parts of the ocean floor, or enough to cover all the U.S. interstate highways with a layer of rock 3 meters (10 feet) deep.
	library.thinkquest.org /18828/data/geology.html (449 words)

	Mid Ocean Ridge (Site not responding. Last check: )
		The mid-ocean ridge is a continuous chain of volcanoes on the ocean floor where lava erupts and the crust of the Earth is created.
		One of the most unique features of the mid- ocean ridge is hydrothermal vents.
		Exploring the Deep Ocean sponsored by the USGS, this site is a bit more advanced but discusses the theory and dynamics behind the concept of plate tectonics.
	www.bigelow.org /vendeeglobe/mid_ocean_ridge.htm (313 words)

	Mid-Ocean Ridge Program, RIDGE 2000, Moves Inland
		A program designed to study the mid-ocean ridge system and enhance understanding of the relationship between the geological processes that lead to planetary renewal in the deep ocean and life forms that thrive in the absence of sunlight has found a home at Penn State.
		According to the RIDGE 2000 science plan, as many as five different deep-ocean sites will be the focus of integrated efforts that involve eight or ten research cruises, and an investment of about $27 million for research, at each site during the next decade.
		The RIDGE 2000 program will focus on the integration of research across a wide range of disciplines, emphasizing the interactions between the complex seafloor and subseafloor ecosystems as well as the geological processes that support them.
	unisci.com /stories/20014/1119014.htm (1040 words)

	9. Inside a Mid-Ocean Ridge
		If we took a undersea voyage to a ridge, we would find that is was formed of a fairly continuous series of active volcanoes that erupt every 100 to 50,000 years.
		So it seems that the mid-ocean ridges are chains of underwater volcanoes and inside these volcanoes, lavas are erupted that form new seafloor...the volcanoes also belch hot water, which influences the chemistry of the ocean water.
		The valley on top of the mid-ocean ridge, shown at the left, is called a "rift valley" where the crust of the Earth splits apart thereby allowing the rise of molten rock from the mantle below.
	oceansjsu.com /105/exped_commotion/9.html (286 words)

	Scientists Excited by Arctic Ocean Ridge Finds (Site not responding. Last check: )
		Summary The Arctic Ocean floor is one of the last frontiers on Earth, and mapping it was thought to be an impossible task.
		The ridge is a volcanically active mountain range, 52,000 miles (84,000 kilometers) long, that runs beneath the North and South Atlantic Oceans, the Arctic Ocean, the Indian Ocean, and the South Pacific.
		The Gakkel Ridge is the slowest spreading ridge in the world, spreading at a rate of one centimeter (less than half an inch) a year.
	news.nationalgeographic.com /news/2001/11/1129_icebreaker.html (677 words)

	Mid-ocean ridge tectonics (Site not responding. Last check: )
		Fast-spread ridge flanks are smooth whereas slow-spread ridge flanks are very rugged, and consequently vast areas of the ocean floors are covered with rough or smooth abyssal hills depending on the type of ridge crest they were produced at.
		The difference is mostly due to different styles and intensity of faulting at ridges so understanding the faulting is important for understanding the structure of substantial parts of the ocean floors.
		Although we know that faulting at mid-ocean ridges occurs near the ridge axes, we know very few further details on the timing of fault growth, which is important for understanding their mechanical behaviour.
	www.ocean.cf.ac.uk /people/neil/mor/mor.html (899 words)

	Ocean Ridge Plantation, Ocean Isle Palms, Seawatch, Seascape, River's edge, North Carolina's Resource for Coastal Real ... (Site not responding. Last check: )
		Sunset Beach, NC Ocean Ridge Plantation® is conveniently located along the coast of North Carolina between historic Wilmington, North Carolina and playful Myrtle Beach, South Carolina.
		Ocean Ridge Plantation’s unique landscape and proximity to quaint and beautiful beaches offers a relaxing lifestyle that embraces coastal living within a luxury golf community.
		Be as active as you want at Ocean Ridge Plantation® with over 50 clubs and organizations, miles of walking and biking trails, ocean front beach club, five championship golf courses (two currently under construction), fitness centers, tennis courts, nature parks, indoor and outdoor pools and much more.
	www.carolinaoceanliving.com /oceanridge.asp (358 words)

	Mid-Ocean Spreading Ridge
		The hotter material elevates the nearby layers, and the cooler, denser lithosphere (in yellow in the drawing) slides away from the elevated region.
		Most of the spreading ridges of today are to be found in the central portion of the world's oceans.
		The large version of this drawing shows a spreading ridge at the left and a slab of lithosphere being subducted at the bottom right.
	www.windows.ucar.edu /tour/link=/earth/interior/mid_ocean_ridge.html (199 words)

	ch12_Ocean Depth & Floor
		In contrast, the highest landform on the continents is Mt. Everest that is approximately 9 km in elevation.
		Diagramatic view of the principal features of the ocean floor include an elevated oceanic ridge, deep, narrow trenches, and a gradual rise of the ocean floor to the continents along passive margins.
		The ocean floor is relatively shallow (less than 3 km) along the ridge system.
	www.mhhe.com /earthsci/geology/mcconnell/oceans/ofloor.htm (779 words)

	Ocean Ridge, Florida FL, town profile (Palm Beach County) - hotels, festivals, genealogy, newspapers - ePodunk
		Ocean Ridge is a town in Palm Beach County, in the Miami-Fort Lauderdale metro area.
		At the time of the 2000 census, the per capita income in Ocean Ridge was $76,088, compared with $21,587 nationally.
		Median rent in Ocean Ridge, at the time of the 2000 Census, was $746.
	www.epodunk.com /cgi-bin/genInfo.php?locIndex=8780 (545 words)

	Hotbed of Volcanic Activity Found Beneath Arctic Ocean
		The ridges circle the globe and the magma that solidifies between the plates forms the ocean floor.
		But based on rock samples dredged from the ocean floor and detailed sonar mapping, researchers were surprised to discover that the Gakkel Ridge is actually a hotbed of volcanic activity and hydrothermal vents.
		Though the ridge spreads slow, scientists have discovered that it is unusually active—in part due to the thin oceanic crust along the ridge.
	news.nationalgeographic.com /news/2003/06/0625_030625_gakkelridge.html (829 words)

	Dive and Discover : Mid-Ocean Ridge : Fast/Slow Spreading
		Steep steps in the seafloor that can be as tall as a few tens of meters (at fast spreading ridges) to hundreds of meters (at slow spreading ridges).
		These features are also called abyssal hills and are present on both sides of the ridge axis and are caused cracking of the ocean plate by seafloor spreading.
		Slow spreading ridges like the Mid-Atlantic Ridge generally have large, wide rift valleys, sometimes as big as 10-20 km wide and very rugged terrain at the ridge crest that can have relief of up to a thousand meters (3,128 feet).
	www.divediscover.whoi.edu /ridge/spreading.html (484 words)

	Ocean Planet: OCEANOGRAPHIC FACTS (Site not responding. Last check: )
		Earth's longest mountain range is the Mid-Ocean Ridge, which winds around the globe from the Arctic Ocean to the Atlantic, skirting Africa, Asia and Australia, and crossing the Pacific to the west coast of North America.
		At the deepest point in the ocean the pressure is more than 8 tons per square inch, or the equivalent of one person trying to support 50 jumbo jets.
		If the ocean's total salt content were dried, it would cover the continents to a depth of 5 feet.
	seawifs.gsfc.nasa.gov /OCEAN_PLANET/HTML/education_oceanographic_facts.html (534 words)

	Ocean Ridge, Florida (FL) Detailed Profile - relocation, real estate, travel, jobs, hospitals, schools, crime, news
		Back to Ocean Ridge, FL housing info, Palm Beach County, Florida, FL smaller cities, FL small cities, All Cities.
		Ocean Ridge, FL residents, houses, and apartments details
		Mercantile Bank: Ocean Ridge Branch at 5112 North Ocean Blvd., branch established on 1999-07-01.
	www.city-data.com /city/Ocean-Ridge-Florida.html (1560 words)

	Last Mid Ocean Ridge Explored
		Because the southern end of the ridge is spreading relatively quickly and the northern end extremely slowly, the researchers expected volcanic activity to gradually die out as they sailed north.
		Hydrothermal vents on mid-ocean ridges in the world's oceans provide chemical energy that supports exotic life forms and large ecosystems far removed from the Earth's sunlit surface, where photosynthesis forms the base of the food chain.
		The ridge is the deepest and most remote portion of the global mid-ocean ridge system, where new ocean crust is continuously created as seafloor spreading takes place through volcanic activity.
	www.spacedaily.com /news/tectonics-01k.html (889 words)

	NOAA Ocean Explorer: GalAPAGoS: Where Ridge Meets Hotspot
		The Galapagos Spreading Center is an east-west ridge that rises above the surrounding seafloor, and is most shallow (depth ~1600 m) north of the Galapagos Islands.
		The global mid-ocean ridge is a giant volcanic seam where oceanic plates repeatedly rip apart and erupt lava to form new seafloor, in a process known as "seafloor spreading." Nearly one-fifth of the "spreading centers" comprising the mid-ocean ridge lie directly above or very near "hotspots" in the Earth's mantle.
		When ocean explorers at sea on an ocean expedition asked for help from students to name a pair of undersea calderas in the Pacific Ocean near the Galapagos spreading zone, school classes from across the nation submitted votes for one of six names suggested by the explorers.
	www.oceanexplorer.noaa.gov /explorations/05galapagos/welcome.html (950 words)

	Mid-ocean ridges (Site not responding. Last check: )
		The lava produced at the spreading centers is basalt, and is usually abbreviated MORB (for Mid-Ocean Ridge Basalt).
		MORB is by far the most common rock type on the Earth's surface, as the entire ocean floor consists of it.
		Mid-ocean ridges are also the locations of many earthquakes, however, they are shallow and generally of small magnitude.
	volcano.und.nodak.edu /vwdocs/vwlessons/volcano_types/spread.htm (189 words)

	Ocean Isle Beach Real Estate
		Ocean ridge has 4 golf courses, tennis and several activity centers.
		Ocean ridge is one of the premiere communities in the carolinas.
		View the ocean from your sitting room deck,relish the sunrise and set from the island topping sundeck, the cool secluded dining deck shaded from matured landscaping.
	www.oceanisle.us /OceanIsleRealEstate (1906 words)

	Relocating and Moving to St Augustine Beach, St Johns County, Florida
		In 1931 the Town of Boynton Beach, later re-named Ocean Ridge, was created by an Act of the Legislature of the State of Florida.
		Prior to that date the area was part of the Town of Boynton, which at the time included what we know now as Boynton Beach, Ocean Ridge, Briny Breezes and the south portion of Manalapan.
		The first hint of salt water in the lake was when A.O. Lang dug a ditch across a very narrow part of land between the lake and ocean at the north end of the lake, later to become the Palm Beach Inlet.
	www.drelocation.com /florida/palmbeachco/oceanridge.htm (563 words)

	8. Mapping the Mid-Ocean Ridge System
		This information was used by scientists such as Bruce Heezen, Harry Hess and Marie Tharp to reveal a major, continuous ridge of undersea mountains connected together in all of the major ocean basins.
		These underwater mountains connect together to form a ridge the extends from one ocean basin to the next.
		that the mid-ocean ridge is not always located in the middle of the ocean.
	oceansjsu.com /105/exped_commotion/8.html (229 words)

	Ocean Ridge Real Estate
		Ocean Ridge is a small coastal community in Palm Beach County located on a barrier island just east of Boynton Beach.
		The Ocean Ridge Hammock Park is one of the town’s landmarks and offers residents one of South Florida's top ten rated beaches.
		With Expert Ocean Ridge Real Estate Agents in purple and green jeeps throughout South Florida, we can get you in most homes in 24-hours or less.
	palmbeach.expertrealty.com /ocean-ridge-real-estate (373 words)

Try your search on: Qwika (all wikis)