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Topic: Explorer Ridge


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In the News (Thu 24 Dec 09)

  
  Mid-ocean ridge - Wikipedia, the free encyclopedia
The mid-ocean ridges of the world are connected and form a single global mid-oceanic ridge system that is part of every ocean, making the mid-oceanic ridge system the longest mountain range in the world, whose total length is ~60,000 km.
Mid-ocean ridges are geologically active, with new magma constantly emerging onto the ocean floor and into the crust at and near rifts along the ridge axes.
Because a mid-ocean ridge is submerged at very deep depths in the ocean, its existence was not even known until the 1950s, when it was discovered through surveys of the ocean floor conducted by research ships.
en.wikipedia.org /wiki/Oceanic_ridge   (948 words)

  
 Vents Program: Explorer Ridge
Explorer Ridge lies at the northern end of a chain of 3 spreading centers located off the west coast of North America.
Explorer Ridge consists of one major segment, Southern Explorer Ridge, and several smaller segments.
Before 2002 Explorer Ridge was the least explored of the NE Pacific spreading centers, even though it was known to have robust hydrothermal activity and is seismically active.
www.pmel.noaa.gov /vents/explorer_site.html   (238 words)

  
 NOAA Ocean Explorer: Submarine Ring of Fire
Explorer Ridge and the Mariana Volcanic Arc are shown, as well as the East Pacific Rise.
The Mid-Ocean Ridge is the beginning of a giant conveyor belt, whereby new ocean floor created at mid-ocean ridges are welded to giant moving plates that are ultimately recycled at island arcs and deep-ocean trenches.
The first ROPOS dive at Explorer Ridge resulted in the discovery of an active hydrothermal chimney, but due to weather conditions, no further investigations could be made.
oceanexplorer.noaa.gov /explorations/02fire   (881 words)

  
 Explorer Plate - Wikipedia, the free encyclopedia
To the east, the Explorer Plate is being subducted under the North American Plate.
To the south is a transform boundary, the Sovanco Fracture Zone, separating the Explorer Plate from the Pacific Plate.
To the northwest is a divergent boundary with the Pacific Plate forming the Explorer Ridge.
en.wikipedia.org /wiki/Explorer_Plate   (118 words)

  
 Gold Ridge Fire Explorer Post 8127
The Gold Ridge Fire Explorer Post is in partnership with the Gold Ridge Fire District and the Boy
Explorers are trained in modern progressive fire service practices and techniques.
Explorers participate in the weekly fire departments drill, which are usually held on
hometown.aol.com /grfdexppost8127/myhomepage/club.html   (316 words)

  
 Oceanography 2
The ridge leading south from Iceland is named the Reykjanes Ridge, and, although it spreads at 20 mm/yr or less, it lacks a rift valley.
These are ridges and valleys on the order of tens of kilometres wide that cut across the crests of the ridges at approximately right angles and offset their trend (Figure 9).
The Ninetyeast Ridge stretches parallel to 90 E longitude in a long, linear chain of seamounts and volcanic ridges from the Andaman Islands in the Bay of Bengal more than 4,500 kilometres to the south where it intersects Broken Ridge at 30 S latitude.
www.crystalinks.com /ocean2.html   (4717 words)

  
 Pacific Plate - Encyclopedia, History, Geography and Biography
To the north the easterly side is a divergent boundary with the Explorer Plate, the Juan de Fuca Plate and the Gorda Plate forming respectively the Explorer Ridge, the Juan de Fuca Ridge and the Gorda Ridge.
In the middle the easterly side is a transform boundary with the North American Plate along the San Andreas Fault and a boundary with the Cocos Plate.
The westerly side is a convergent boundary subducting under the Eurasian Plate to the north and the Philippine Plate in the middle forming the Mariana Trench.
www.arikah.com /encyclopedia/Pacific_Plate   (262 words)

  
 NOAA News Online (Story 2173)
Explorer Ridge is a spreading center where two tectonic plates are spreading apart and submarine volcanoes erupt.
Volcanic ridges lying as close as 60 nautical miles of the northwest U.S. and Canada are part of the world-girdling Mid-Ocean Ridge system, a 60,000 km long series of seafloor spreading centers where new earth is born.
The Mid-Ocean Ridge is the beginning of a giant conveyor belt where new ocean floor is welded to giant moving plates that are ultimately recycled at volcanic island arcs and deep-ocean trenches.
www.noaanews.noaa.gov /stories2004/s2173.htm   (770 words)

  
 [No title]   (Site not responding. Last check: 2007-11-01)
This suggests the southern Explorer Ridge and western SFZ may not have been completely abandoned (and transferred to the Pacific Plate) by a proposed transform fault through the center of the Explorer Plate.
The ridge axis and both flanks were seismically active throughout the experiment and 1750 earthquakes were located with a minimum of five travel time picks including at least one S wave.
On the western flank, the hypocenters for four swarms are compatible with steeply dipping fault planes that strike at 035-050ยบ N and are oblique to the trend of the abyssal hills.
ridge.oce.orst.edu /ewreport-final.doc   (15331 words)

  
 Weekend Explorer: Sand Ridge Nature Center, Spring 2003
Sand Ridge Nature Center in South Holland is a 235-acre preserve with a full-service education center offering classes and outreach programs, summer and winter camps for youth, special events and demonstrations, guided walks, more than three miles of hiking trails, and habitats that include wetlands, woodlands, and a sand prairie.
The director and three naturalists at Sand Ridge are dedicated to forging connections between people and nature.
Explorers ranging farther afield can camp at either the Indiana Dunes State Park or the Indiana Dunes National Lakeshore — both are 35 miles from Sand Ridge.
chicagowildernessmag.org /issues/spring2003/weekendexplorer.html   (1619 words)

  
 Weekend Explorer: Marengo Ridge – Winter 2002
Running north and south through western McHenry County to Kane County, Marengo Ridge — a glacial moraine left by the last Ice Age — is three miles wide from east to west, and 200 feet thick.
Marengo Ridge, close to 400 acres in all, encompasses a pine plantation called Kunde Woods, originally owned by Dr. Emerson Kunde, who planted 15 species of conifers in 1955.
Marengo Ridge is now a gloriously wooded and hilly area that is so tucked away and diverse you hardly know you're close to civilization.
chicagowildernessmag.org /issues/winter2002/weekendexplorer.html   (1547 words)

  
 Ridge Mining making good progress   (Site not responding. Last check: 2007-11-01)
The pre-feasibility study on the Sheba's Ridge Platreef joint venture is progressing well and remains on target for completion in March 2005, Ridge Mining said.
Ridge Mining wholly owns the Blue Ridge project on the eastern limb of the Bushveld, with a feasibility study having been completed.
Ridge Mining has a 51% interest in the joint venture, Mmakau Mining 30%, and 19% is reserved for local community and employee trusts.
www.sundaytimes.co.za /zones/sundaytimesNEW/basket8st/basket8st1103105088.aspx   (557 words)

  
 NOAA Ocean Explorer: Submarine Ring of Fire
Note Explorer Ridge, the Marianas Volcanic Arc, and the East Pacific Rise.
Explorer Ridge is found northwest of the Juan de Fuca Ridge and offset by the Sovanco Fracture Zone.
The relatively shallow depth of the Southern Explorer Ridge (up to 1800 m) in comparison with most other segments of the northeast Pacific spreading centers suggests that there has been considerable volcanic activity along this segment in the past 100,000 years.
oceanexplorer.noaa.gov /explorations/02fire/background/plan/plan.html   (987 words)

  
 The DeSoto Explorer: Arbor Ridge rezoning approved
The Planning Commission's unanimous decision Nov. 23 was in contrast to a split-decision in favor of a rezoning made 12 months before.
The revamped plan increased the projected costs of the lowest-price homes in the subdivision from $150,000 to $250,000, Arbor Ridge developer Jim Lambie said.
However, the city engineer said it was currently estimated the city had enough sewer capacity for about 100 new homes, or the first two phases at Arbor Ridge.
www.desotoexplorer.com /section/news/story/3821   (975 words)

  
 Archives: Sports - www.explorernews.com   (Site not responding. Last check: 2007-11-01)
Mya Towne's first loss in her high school career came at an inopportune time for the Pusch Ridge sophomore.
Pusch Ridge also advanced a team to the girl's doubles finals.
Jamie Sheppard and Chelsea Vick was the surprise of head coach David Towne's team, winning three matches before being bounced in the finals by a duo from Miami High School, 7-5, 6-2.
www.explorernews.com /articles/2006/05/10/sports/sports04.txt   (260 words)

  
 Pacific Ocean ridge basalts
The Oceanic ridge system in the Pacific is taken as beginning at 51 deg N, north of Vancouver Id and lies at first very close to the coast of N America.
The ridge sectors vary somewhat in composition, but even if 30,000 samples have been collected, this is proportionately a tiny sample when it is considered the ridge systems are a total of 45,000 miles long, being less than one sample per mile.
Variation diagram for the Explorer ridge segment, near the northern end of Victoria Island, a mixture of glasses and WRs.
www.geokem.com /ORB-oceanic-pacific.html   (7025 words)

  
 Publications
Tivey, M.A. Schouten and M.C. Kleinrock, A near-bottom magnetic survey of the Mid-Atlantic Ridge axis at 26°N: Implications for the tectonic evolution of the TAG segment, J.
Tivey, M.A., and H. Schouten, Magnetism of the midocean ridge axis and implications for crustal accretion, EOS Trans.
Tivey, M.A. and H.P. Johnson, Crustal evolution and the implications for the magnetization of oceanic crust, EOS Trans.
deeptow.whoi.edu /pubs.html   (3852 words)

  
 Ocean 540: Hydrothermal Fluxes   (Site not responding. Last check: 2007-11-01)
We have seen that at the scale of a lithospheric plate that conductive heat transfer explains the pattern of conductive heat flow and topography with the exception of an anomaly closer to the ridge axis suggesting an important contribution by convection.
Thus the heat flux from a single fl smoker or warm spring is sufficient to remove the required heat from a significant portion of the mid-ocean ridge and individual vents should be relatively sparsely distributed.
The Endeavour Segment is the northernmost portion of the Juan de Fuca Ridge.
www2.ocean.washington.edu /oc540/lec01-11   (1426 words)

  
 Educational Activities, Lessons, and Resources [Ridge 2000 Education & Public Outreach]   (Site not responding. Last check: 2007-11-01)
Ridge 2000 Data Tips are individual student lessons built around real mid-ocean ridge datasets to help students develop analytical skills.
A Ridge 2000 program for middle and high school students offering your choice of curriculum, laboratory activities, and student competitions.
MARVE (The Marine Virtual Explorer) is a simulation of a research dive in the Alvin submersible to a hydrothermal vent field on the East Pacific Rise.
www.ridge2000.org /eo/resources.html   (367 words)

  
 Eagle Ridge Resort & Spa, Galena, Illinois - Privacy Policy   (Site not responding. Last check: 2007-11-01)
We will not knowingly collect personal information from teens 13 through 15 without disclosing how the information will be used and notifying the teens that they should obtain their parents' permission prior to submitting any personal information.
You will only receive email communication from Eagle Ridge Resort and Spa if you register your email information with us (for example, when you register for the monthly contest) and choose to be included in future email communications.
Eagle Ridge Resort and Spa may not be affiliated with and cannot be held responsible for information that is provided by sites that link to Eagle Ridge Resort and Spa.
www.eagleridge.com /privacy.asp   (1078 words)

  
 IGN: Ridge Racer 6 Preview
Ridge Racer 6: Hands-On Namco's slippery next-gen racer.
The mode we played was called World Explorer Mode which takes players across all of the game's tracks and allows them to unlock content such as hidden cars as they progress.
This was very noticeable as we whipped the Prophete around the track and made it extremely difficult to properly take corners and also caused several inadvertent slide turns when we were just trying to slow down without using the brake.
xbox360.ign.com /articles/658/658171p1.html   (608 words)

  
 Ford Explorer Truck Haven 2000 Salton City California Page 3
Trailmaster, Explorer Express and Michael Rudd from Fourwheeler all went their own ways as did a few from our group.
The trail was loose, barely wider than the Explorer, lasted over 100 yards, was off camber, and to make matters worse, we had to take the same trail to get back.
With a little guidance Matt positioned his Explorer on the edge and dropped the front tires over the side.
www.explorer4x4.com /thaven_report3.html   (1179 words)

  
 CVO Website - Juan de Fuca Volcanics
Young volcanoes, lava flows, and hot springs were discovered in a broad valley less than 8 kilometers wide along the crest of the ridge in the 1970's.
The Explorer Plate separated from the Juan de Fuca approximately 4 million years ago and is apparently no longer being subducted (Hyndman, et.al., 1979); the Gorda split away between 18 and 5 million years ago (Riddihough, 1984).
Following the discovery of hydrothermal venting north of the caldera in 1983, a concentrated mapping and sampling effort was made in the mid-late 1980s.
vulcan.wr.usgs.gov /Volcanoes/JuanDeFucaRidge/description_juan_de_fuca.html   (1334 words)

  
 Understanding plate motions [This Dynamic Earth, USGS]
They commonly offset the active spreading ridges, producing zig-zag plate margins, and are generally defined by shallow earthquakes.
Land on the west side of the fault zone (on the Pacific Plate) is moving in a northwesterly direction relative to the land on the east side of the fault zone (on the North American Plate).
Oceanic fracture zones are ocean-floor valleys that horizontally offset spreading ridges; some of these zones are hundreds to thousands of kilometers long and as much as 8 km deep.
pubs.usgs.gov /gip/dynamic/understanding.html   (2502 words)

  
 Austin Explorer - Mayfield Park - Ridge
After crossing the creek continue to head east and you'll soon come up to a rock ridge with some small, but impressive rock overhangs.
Upon exploring the top of the rock face we noticed a small, unofficial trail that continued to the south along the ridge.
Once on top of the ridge a gate provides entrance to the fenced in area of the Mayfield house.
www.austinexplorer.com /hiking/Hillcountry/MayfieldPark/MayfieldRidge   (843 words)

  
 t11c in fm02
The Explorer Ridge expedition was a complex multi-institutional effort that was focused on exploring a poorly known, but intensely hydrothermally active, portion of the northeast Pacific spreading-center system.
Southern Explorer Ridge (SER) is a medium-rate spreading center that is known to host a large hydrothermal vent complex known as "Magic Mountain".
The change in morphology of the GR crest from a wide rifted graben at 86W to a more domal and shallow ridge at 89.5W may be related to the interaction of the spreading axis with the Galapagos plume, and the greater availability of melt and enhanced isothermal structure of the lithosphere near the hotspot.
www.agu.org /cgi-bin/SFgate/SFgate?&listenv=table&multiple=1&range=1&directget=1&application=fm02&database=/data/epubs/wais/indexes/fm02/fm02&maxhits=200&="T11C"   (7979 words)

  
 Police Explorers   (Site not responding. Last check: 2007-11-01)
The Explorer Program is part of the Learning for Life Career Education Program for young men and women who are 14 years of age and have completed eighth grade or are 15-20 years of age with an interest in the law enforcement field.
The Park Ridge Explorer Post 911 is based on five areas of emphasis: career opportunities, life skills, in-service learning, character education and leadership experience.
Activities will allow Explorers to have hands-on experience with police officers in their roles in the community.
www.park-ridge.il.us /prpolice/policeexplorers.htm   (399 words)

  
 Golf Explorer   (Site not responding. Last check: 2007-11-01)
The 18-hole Eagle Ridge 7005-yard public course of impressive golf has my personal rating as one of the best in Northern California.
It’s another Eagle Ridge specialty that will keep your putter out of your bag more than you want when you tackle these super undulating and wavering greens.
Even though Eagle Ridge is only five years old, the management continues to improve the playability, drainage, appearance and maintenance of landscaped areas around the course.
www.golftodaymagazine.com /0402feb/golf1.htm   (1086 words)

  
 Exploring the Submarine Ring of Fire
An interdisciplinary team of scientists explored the submarine volcanoes of the Mariana Arc lying north of Guam in the western Pacific from February 9 to March 5, 2003.
It is here that most of the ocean crust, born along the mid-ocean ridges millions of years ago in the eastern Pacific (see Explorer Ridge expeditions), is “recycled” back into the earth’s mantle as the ocean floor descends into the Mariana trench.
In June to August 2002, a team made up of U. and Canadian geologists, chemists, and biologists conducted two expeditions to the Explorer Ridge, a section of the world-girdling Mid-Ocean Ridge, to investigate the birth of new ocean crust off the coast of western North America, part of the Pacific "Ring of Fire".
www.pmel.noaa.gov /vents/ring-of-fire.html   (511 words)

  
 AGU Abstract Fall 1996   (Site not responding. Last check: 2007-11-01)
The new plate boundary accommodates Pacific-North America relative motion and movesthe Pacific-North America-Juan de Fuca triple junction to the northern end of the the Juan de Fuca ridge.
In 1994 a regional scale survey was conducted with lines 8-16 km apart and in 1996 two grids of reflection lines 2 km apart and 20 km long were conducted on what has been thought of as the coherent rigid Explorer microplate.
In previous models of tectonic evolution the Pacific and Explorer plates formed at the Explorer ridge at the same time and should have similar morphologies.
geoweb.princeton.edu /research/ACCRETE/T72A06.html   (219 words)

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