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Topic: Japan Trench


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In the News (Tue 23 Jul 19)

  
  UN Seahorse: Oceans around Japan
On the Asian continent, Russia is to the north and northwest of Japan, and North Korea, South Korea, and China are to the west.
A marginal sea on the northern rim of the Pacific Ocean centered near 55 N and 150 E. It is bounded by the Siberian coast to the west and north, the Kamchatka Peninsula to the east, and the Kurile Islands to the south and southeast.
It is connected to both the Pacific Ocean and the Japan Sea via narrow passages, the most important ones being (for the former) the Boussole Strait (2318 m) and the Kruzenshtern Strait (1920 m) and (for the latter) the Tatarskyi Strait (50 m) and the Soya (or La Perouse) Strait (200 m).
www.gdrc.org /oceans/un-seahorse/ocean.html   (1096 words)

  
 Chapter 3   (Site not responding. Last check: 2007-10-18)
In Japan, the harbinger of spring is the blooming of the sakura - cherry blossoms.
Japan’s feudal social structure was similar to Europe’s hierarchy of kings, lords, warriors and vassals, but while Europeans allowed their cultural traditions to remain dormant until the Renaissance, the Japanese daimyo nurtured art forms such as painting, poetry, drama and ceremony.
Japan’s political economy based upon government-business cooperation and consultations, compensations for weak economic sectors, and employment security for workers made it possible for the country to respond to changes in the world markets and technology while minimizing the dislocative effects on domestic society.
www.uwplatt.edu /~stradfot/asia393/KaranJapan3a.html   (19866 words)

  
 Methane Hydrates: All About Hydrates: Nankai Trough, Offshore Japan
Japan is a volcanic island arc system formed by the subduction of the Pacific and Philippine Sea plates beneath the Eurasian plate.
In northern Japan the western edge of the Pacific plate converges with and is being consumed beneath Japan (Eurasian plate) along the Japan Trench.
In southern Japan, the western edge of the smaller Philippine Sea plate is in contact with Japan along the Nankai trough.
www.netl.doe.gov /scngo/NaturalGas/hydrates/about-hydrates/nankai-trough.htm   (1094 words)

  
 The Earthquake and Tsunami of 26 May 1983 in the Sea of Japan - by Dr. George Pararas-Carayannis
Almost all of the destruction and deaths near the northern coast of Akita and elsewhere in Japan and Korea were caused by the tsunami.
The seismicity of Northern Japan is the result of a double seismic zone (DSZ), and compressional deep trench and outer rise events and by the magmatic effects of plumes or superplumes which, originally, may have hydrated the subducting oceanic lithosphere.
On the western side, the Sea of Japan is a complex basin between Japan and the Korea/Okhotsk Sea Basin.
www.drgeorgepc.com /Tsunami1983Japan.html   (2291 words)

  
 Japan Trench - Wikipedia, the free encyclopedia
As a result, uploads have been disabled until further notice, and images may not be displayed.
The Japan Trench is an oceanic trench, a part of the Pacific Ring of Fire, in the floor of the northern Pacific Ocean off northeast Japan.
On August 11, 1989 the Shinkai 6500 three-person submersible descended to 6,526 m (21,414 ft.) while exploring the Japan Trench.
en.wikipedia.org /wiki/Japan_Trench   (125 words)

  
 Japan Series --  Encyclopædia Britannica   (Site not responding. Last check: 2007-10-18)
Baseball in Japan was established on a professional basis in 1934, and by 1936 seven professional teams had been organized.
It is one of a series of depressions stretching south from the Kuril Trench and the Bonin Trench to the Mariana Trench.
Japan surrendered in 1945 after United States atomic bombs had destroyed the cities of Hiroshima on August 6 and Nagasaki on August 9.
www.britannica.com /eb/article-9043358   (984 words)

  
 LME 49: Kuroshio Current
Japan is a major fishing nation with a focus on the conservation and management of its marine living resources.
Japan is one of the world’s largest consumers of fish and contributes to the depletion of fisheries in Asia and elsewhere.
Japan and Taiwan are involved in the governance of this LME.
na.nefsc.noaa.gov /lme/text/lme49.htm   (1330 words)

  
 Out of the arc - for printer   (Site not responding. Last check: 2007-10-18)
Northeast Japan is dotted with a line of volcanoes called the Japan arc, produced by the subduction further east.
But in central Japan this volcanic chain is seemingly deflected westwards relative to the Japan trench.
This in turn means that magma is not formed until further westwards of the trench, and the volcanoes arise not off the east coast of central Japan but close to its west coast.
www.nature.com /nsu_new/nsu_pf/000907/000907-2.html   (625 words)

  
 China calls Japan’s drilling plan ‘provocation’
Despite earlier warnings from Beijing, Japan’s Ministry of the Economy, Trade and Industry said Wednesday companies will be permitted to analyse energy deposits in the Xihu Trench, an area east of Shanghai that spans a maritime economic zone partially claimed by both China and Japan.
While Japan and China both claim there are significant oil and gas deposits in the Xihu Trench, there are signs the dispute is being deliberately over-politicised.
Japan’s newfound assertiveness has come at a time when China is also starting to flex its diplomatic muscles in tandem with its emerging economic might – a role that threatens Japan’s position as Asia’s leading economic and diplomatic force.
www.infowars.com /articles/ps/china_calls_japan_drilling_plan_provocation.htm   (415 words)

  
 Earthquake and Tsunami of October 4, 1994 IN THE KURIL ISLANDS - Dr. George Pararas-Carayannis
Japan's northernmost island - extends northeast into Kuril Islands and is composed of multiple compressed island arcs.
Because of the large earthquake magnitude and the known tsunamicity of the area, regional and Pacific-wide warnings were issued by the Pacific Tsunami Warning Center in Honolulu, for the Kuril Islands, Japan, the Hawaiian Islands, and the west coast of Canada and the United States.
Tectonic movements in the inland Seas of Japan and of Okhtsok have also been responsible for large earthquakes and tsunamis but their effects have been confined to the immediate area (i.e.
www.drgeorgepc.com /Tsunami1994RussiaKurils.html   (4285 words)

  
 SEIZE Workshop Report
A fundamental measure of slip on the seismogenic zone is the deformation of the surface of the overriding plate from the trench to the backarc.
The horizontal expressions of such elastic strain models predict a smoother transition, with the near trench portion of the overriding plate moving mostly with the downgoing plate velocity and decreasing towards the stable plate interior.
General seismicity of the region indicates a geometry consistent with a shallow plate dip in the forearc region and a rapid increase in dip under the volcanic front to nearly vertical under the backarc basin.
www.soest.hawaii.edu /moore/seize/report.html   (12190 words)

  
 Earthquake Article: Deadly Series of Quakes hit Japan, October 23, 2004
Japan rests atop several tectonic plates and is among the world's most earthquake-prone countries.
The Islands of Japan lie on a ring of seismically active plate boundaries that surround the Pacific Ocean known as the Ring of Fire.
Earthquakes throughout Japan are caused by the relative motion of several major and minor tectonic plates including the Pacific plate, the Philippine Sea plate, the Okhotsk plate, and the Amur plate.
earthquakeadvisor.com /articles/00073.html   (589 words)

  
 Search Results for "Japan"
660 b.c., Japan's written history began in the 5th century a.d.
...Emperor of Japan (1912-1926) whose reign was marked by World War I and Japan's increased international influence....
Hokkaido became part of Japan in the medieval period...
www.bartleby.com /cgi-bin/texis/webinator/sitesearch?FILTER=col61&query=Japan   (293 words)

  
 References   (Site not responding. Last check: 2007-10-18)
A new deep-sea ophidiid fish, *Bassozetus levistomatus*, from the Izu-Bonin Trench, Japan.
A new snake eel, *Muraenichthys borealis*, from Aomori, northern Japan.
Redescription of the congrid eel, *Rhechias retrotincta* (Jordan and Snyder), from Japan.
www.fishbase.org /References/ReferencesListTitles.cfm?Name1=Machida&Name2=&Init1=Y.&Init2=&AddAuth=&Year=1996&FishBase=No   (501 words)

  
 s12d in fm00
AB: The Japan Trench subduction zone is located at eastern side of the NE Japan, and many earthquakes are occurred around the Japan Trench associated with the Pacific Plate subduction.
Although thickness of the low velocity zone is varied from the northern Japan Trench to the southern Japan Trench, the thickness in the southern Japan Trench is larger than that in the northern Japan Trench in general.
AB: The Japan Trench subduction zone, east off the northeastern Japan arc, is characterized by active seismicity accompanied with the underthrusting of the Pacific plate.
www.agu.org /cgi-bin/SFgate/SFgate?&listenv=table&multiple=1&range=1&directget=1&application=fm00&database=/data/epubs/wais/indexes/fm00/fm00&maxhits=200&="S12D"   (4217 words)

  
 Okhotsk Plate - Wikipedia, the free encyclopedia
The Okhotsk Plate is a continental tectonic plate covering the Sea of Okhotsk, the Kamchatka Peninsula, and Eastern Japan.
It was considered a part of the North American Plate, but recent studies show that it is an independent plate.
It is bounded on the north by the North American Plate, on the east by the Pacific Plate at the Kuril-Kamchatka Trench and the Japan Trench, on the south by the Philippine Plate at the Nankai Trough, on the west by the Eurasian Plate, and possibly on the southwest by the Amurian Plate.
en.wikipedia.org /wiki/Okhotsk_Plate   (163 words)

  
 Chemistry - Pacific Ring of Fire
The Ring of Fire is a zone of frequent earthquakes and volcanic eruptions that encircles the basin of the Pacific Ocean.
It is associated with a nearly continuous series of oceanic trenches, island arcs, and volcanic mountain ranges and / or plate movements.
Along the northern portion the northwestward moving Pacific plate is being subducted beneath the Aleutian Islands arc.
www.chemistrydaily.com /chemistry/Pacific_Ring_of_Fire   (356 words)

  
 INTRODUCTION   (Site not responding. Last check: 2007-10-18)
A forearc basin developed in the deep-sea terrace and trench upper slope, which extends from the coast of Hokkaido >600 km to the south and is filled with Cretaceous and Cenozoic sediments as much as 5 km thick.
These legs focused on the study of the mechanism and dynamics of plate convergence and their effects on sedimentation because the Japan Trench has the dynamic properties of one of the world's most active plate subduction zones, where the oldest oceanic plate (>100 Ma) is subducting at a high rate (~90 km/m.y.).
These are (1) documenting the succession of surface ocean floras and faunas in the Japan Trench area, (2) investigating the longer-term linkage between the oceanographic evolution of the North Pacific and continental records of mainly volcanic activities, and (3) defining age frameworks for deep-sea sediment sequences.
www.ga.gov.au /odp/publications/186_SR/106/106_2.htm   (745 words)

  
 Search Results for trench - Encyclopædia Britannica   (Site not responding. Last check: 2007-10-18)
The Yap Trench is about 400 miles (650 km) long from north to south and reaches a maximum...
submarine trench in the floor of the Philippine Sea of the western North Pacific Ocean bordering the east coast of the island of Mindanao.
It is one of a series of depressions stretching south from the Kuril Trench and the Bonin...
www.britannica.com /search?query=trench&submit=Find&source=MWTEXT   (575 words)

  
 Japan Trench -- Facts, Info, and Encyclopedia article   (Site not responding. Last check: 2007-10-18)
Japan Trench -- Facts, Info, and Encyclopedia article
The Japan Trench is a depression in the floor of the northern (The largest ocean in the world) Pacific Ocean off northeast (A constitutional monarchy occupying the Japanese Archipelago; a world leader in electronics and automobile manufacture and ship building) Japan.
See also: (additional info and facts about Pacific Ring of Fire) Pacific Ring of Fire
www.absoluteastronomy.com /encyclopedia/j/ja/japan_trench.htm   (97 words)

  
 N. Kanjorski Thesis Abstract   (Site not responding. Last check: 2007-10-18)
The southern Mexico trench outer rise exhibits reactivation of the inherited abyssal-hill and trench-parallel faults to accommodate extension from plate flexure.
Trench-parallel extension related to the geometry of the trench axis bend and increasing plate convergence angle may contribute to their genesis.
Unusual outer-rise faulting off of the Japan trench (Kobayashi et al., 1998) which is coincident with a trench axis bend is used to argue that specific conditions at subduction zones may activate inherited fracture-zone-parallel weakness.
www-mpl.ucsd.edu /people/ldorman/abst/NKThesisAbst.html   (344 words)

  
 Varied responses to subduction in Nankai Trough and Japan Trench forearcs
Responses of sediment entering trenches range from accretion at the foot of the inner slope to subduction into the mantle, with inner trench slopes variously displaying uplift, subsidence, growth and retreat.
Leg 87 is the latest of the DSDP voyages which have provided many clues to the behaviour of subduction zones, and was devoted to the study of subduction processes in two trenches off Japan.
Because these seismic profiles define the large scale geometry so clearly, the objective of the Leg 87 drilling programme was to investigate the structural fabric and physical properties of sediments as they enter the subduction zone.
www.nature.com /cgi-taf/DynaPage.taf?file=/nature/journal/v304/n5922/abs/304148a0.html   (214 words)

  
 REFERENCES   (Site not responding. Last check: 2007-10-18)
Crustal structure of the Japan Trench: the effect of subduction of ocean crust.
Seismic upper crust of the Japan Trench inner slope.
Crustal structure beneath the inner trench slope of the Japan Trench.
www.ga.gov.au /odp/publications/186_IR/chap_01/c1_10.htm   (503 words)

  
 Unbenanntes Dokument   (Site not responding. Last check: 2007-10-18)
Mark Langseth was central in constraining early speculative models as co-chief of the first DSDP leg to drill the Japan Trench margin.
The topography of the igneous oceanic crust and the sediment thickness in the trench seem to have a fundamental control in the tectonic style currently active at the plate boundary.
Where the ridge is being subducted the profile shows that all trench sediment is subducted and the decollemont is probably within the old accretionary prism indicating erosion of the upper plate.
www.geomar.de /add_info/former_info/abstracts97/agu97abstracts.html   (2708 words)

  
 Japane 8+ on Sep 26, 2003   (Site not responding. Last check: 2007-10-18)
This subduction related earthquake initiated off the south-east shore of the island of Hokkaido, Japan, near the deep ocean trench.
To the north of the event, the trench is called the Kuril trench and to the south it is called the Japan trench.
Near the earthquake, the Pacific plate is moving west at a rate of about 8.2 cm per year relative to Eurasia.
www.zetatalk.com /index/japan1.htm   (161 words)

  
 t22c in fm01
To estimate the amount of water circulation that may result from the bending of the plate into the trench, heat flow data from the outer bulge regions are compared to data seaward, the global averages, and values expected from thermal lithospheric models.
One important objective of this study is the imaging of the subduction zone from the trench to the coast and the determination of the margin P-wave velocity structure.
Sediment thickness increases from 1.9 km seaward of the trench to 3.1 km at the trench.
www.agu.org /cgi-bin/SFgate/SFgate?&listenv=table&multiple=1&range=1&directget=1&application=fm01&database=/data/epubs/wais/indexes/fm01/fm01&maxhits=200&="T22C"   (13978 words)

  
 CDNN News :: Plankton Do It Deeper: Life Flourishes at 10,896m Deep
MARIANAS TRENCH, Japan (4 Feb 2005) -- Tiny single-celled creatures, many of them previously unknown to science, have been found at the deepest point in the world's oceans, almost 11km down.
The Marianas Trench forms part of the subduction zone where the west Pacific oceanic floor is being pulled under the Philippine tectonic plate.
The team says the deepest trenches of the western Pacific were formed about six to nine million years ago.
www.cdnn.info /news/eco/e050204.html   (457 words)

  
 Nankai - Japan Trench   (Site not responding. Last check: 2007-10-18)
This page is the home for data, figures, references that are relevant to the Seismogenic Experiment (SEIZE) Initiative and the Nankai-Japan Trench focus area.
The proposal, largely developed at a workshop held August 10-12, 2001 in Tokyo, was submitted by the 40 member Nankai Trough Seismogenic Zone Research Group.
It outlines a program of both riser and non-riser drilling designed to characterize the plate boundary thrust and associated splay faults from seaward of the trench to the up-dip end of the seismogenic zone.
www.ldeo.columbia.edu /res/pi/margins/MARGINSnet4/Nankai.html   (433 words)

  
 Extremely Barophilic Bacteria Isolated from the Mariana Trench, Challenger Deep, at a Depth of 11,000 Meters -- Kato ...
Trench at a depth of 10,476 m by using an insulated trap (22).
Biodiversity in the world's deepest sediment of the Mariana Trench, at a depth of 11,000 m and isolation of hyperbarophilic bacteria from the same sediment.
Molecular analyses of the sediment of the 11000 m deep Mariana Trench.
aem.asm.org /cgi/content/full/64/4/1510   (2568 words)

  
 AngieIproject   (Site not responding. Last check: 2007-10-18)
To try and prove this, depths of earthquakes were taken from different trenches.
The trenches that were observed were the Japan Trench, Fiji Trench, Peru-Chile Trench, Java Trench, and Aleutian Trench.
After that, the speed of each trench was recorded.
ourworld.compuserve.com /homepages/robertalink/angieipr.htm   (208 words)

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