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Ocean Floor Adventure. By: Aaron Chu Daniel Johnson . Trench. Trench: A cut in the ground Can be up to 7300 or more meters deep T ypically form in locations where tectonic plates subduct under another Parallel to adjacent island arcs or mountain ranges of the continental margins
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Ocean Floor Adventure By: Aaron Chu Daniel Johnson
Trench • Trench: A cut in the ground • Can be up to 7300 or more meters deep • Typically form in locations where tectonic plates subduct under another • Parallel to adjacent island arcs or mountain ranges of the continental margins • Closely associated with and found in subduction zones
Deepest part of the earth • 11,000 meters deep • Formed by ocean-to-ocean subduction • 1 plate (piece of lithosphere) moves underneath another • Located in the Pacific Ocean • East of the 14 Mariana Islands • 11"21' North latitude and 142" 12' East longitude (near Japan)
The trench is deep enough that Mt. Everest could fit in its place
Jellyfish Football Fish Scary Dragonfish
Izu-Bonin-Mariana Arc • Volcanic island arc • 2800 km south from Tokyo • 1100 km long and 300 to 400 km wide • Contains • Izu Islands , Bonin Islands, and Mariana Islands • Convergent boundary • Crust is destroyed and recycled back into the interior of the Earth as one plate dives under another • Often known as “Subduction zones” • Formed as a result of subductionof the western Pacific plate
Iceland Divergent plate • Mid-Atlantic Ridge runs beneath Iceland • North American Plate moves west, while the Eurasian Plate moves east • Iceland is slowly being split in 2 pieces • Result of this is divergent boundary • New crust is created as 2or more plates pull away from each other.
Mid-Ocean Ridge • Mid-Ocean ridge • Underwater mountain range, formed by plate tectonics • Seafloor spreading occurs during this process • Process in which the ocean floor is extended when two playesmove apart. • Mid-Atlantic Ridge includes a deep rift valley • Runs along the axis of the ridge along nearly its entire length
Mid-Atlantic ridge • 65,000 kilometers • Between 22° and 23°N and 44°30′ to 46°20′W • Formed by the movement of the Earth's tectonic plates.
Paleomagnetism • Paleomagnetism • Study of the record of the Earth’s magnetic field in rocks. • Paleomagnetistsstudy the Paleomagneticstripes in the mid ocean ridge to see the.. • Iron rich basaltic lava erupted along mid-ocean ridges • Iron within the basalt is permanently oriented by the magnetic field of the Earth
Cascade Volcanoes' • Cascade Volcanoes • Extends about 1,100km • Formed due to subductionalong the Cascadia subduction zone • Series of volcanoes in North America • Extends from southwestern British Colombia through Washington and Oregon to Northern California
Volcanic Arc • Cascade Volcanoes' = Volcanic arc’s • Volcanic Arc • Chain of volcanoes positioned in an arc • 2 types • Oceanic arcs: forms when oceanic crust subducts beneath another oceanic crust • Continental arcs:forms when oceanic crust subducts beneath continental, creating an arc-shaped mountain belt
San Andreas Fault • In California lays the San Andreas fault • 800 mi. long • Tectonic boundary between the Pacific plate and the North Atlantic plate • 35°07'N, 119°39'W • The fault is a transformation fault boundary
Transformation-fault boundary • Transformation-fault boundary • 2 plates are sliding horizontally past one another. • Usually appear in ocean floors but a few occur on land such as California
Citations (Website) • http://www.marianatrench.com/ • http://www.britannica.com/EBchecked/topic/155513/deep-sea-trenchhttp://geology.com/nsta/transform-plate-boundaries.shtml • http://www.platetectonics.com/book/page_5.asp • http://en.wikipedia.org/wiki/Convergent_boundary • http://geology.com/nsta/transform-plate-boundaries.shtml • http://oceanservice.noaa.gov/facts/midoceanridge.html • http://www.universetoday.com/38568/divergent-boundaries/ • http://www.agu.org/pubs/crossref/1968/JB073i004p01279.shtml • http://en.wikipedia.org/wiki/Mid-Atlantic_Ridge • http://library.thinkquest.org/17457/platetectonics/4.php • http://en.wikipedia.org/wiki/San_Andreas_Fault • http://geology.com/nsta/divergent-plate-boundaries.shtml • http://faculty.ccbcmd.edu/courses/eas101/unit3/easqa3.html
Citations (Pictures) • http://www.google.com/imgres?q=mariana+trench&um=1&hl=en&safe=active&sa=N&rls=com.microsoft:en-us:IE-SearchBox&biw=1366&bih=600&tbm=isch&tbnid=X8SO25itZSMtkM:&imgrefurl=http://en.wikipedia.org/wiki/Mariana_Trench&docid=Rrwdseow3_1vwM&w=250&h=325&ei=dJKUTv-_HrD9sQK3vpzvAQ&zoom=1&iact=rc&dur=110&page=1&tbnh=126&tbnw=98&start=0&ndsp=24&ved=1t:429,r:0,s:0&tx=46&ty=72 • http://visual.merriam-webster.com/earth/geology/ocean-trenches-ridges.php • http://en.wikipedia.org/wiki/Mariana_Trench • http://www.britannica.com/EBchecked/topic/155513/deep-sea-trench • http://www.google.com/imgres?q=japan+trench&um=1&hl=en&safe=active&sa=N&rls=com.microsoft:en-us:IE-SearchBox&biw=1366&bih=600&tbm=isch&tbnid=MTlosufrKhSVdM:&imgrefurl=http://en.wikipedia.org/wiki/File:Japan_trench_topographic.png&docid=CBDFlKfgm5_w-M&w=800&h=800&ei=K5mUTvj0H8GysALN_5TvAQ&zoom=1&iact=hc&vpx=339&vpy=139&dur=688&hovh=225&hovw=225&tx=135&ty=136&page=1&tbnh=138&tbnw=138&start=0&ndsp=14&ved=1t:429,r:1,s:0 • http://www.google.com/imgres?q=mariana+trench&um=1&hl=en&safe=active&sa=N&biw=1024&bih=653&tbm=isch&tbnid=-72G99_4yRdqpM:&imgrefurl=http://infobunch.blogspot.com/2011/05/facts-about-our-planet.html&docid=TwptuOzqu7d07M&imgurl=http://4.bp.blogspot.com/-_ag5FD9BCGA/TdVtZK_VgII/AAAAAAAAABs/KigfhjMRSBE/s1600/Mariana-Trench.jpg&w=400&h=300&ei=TlOYTuuvJM6JsAKUn_CrBA&zoom=1&iact=hc&vpx=709&vpy=347&dur=1663&hovh=194&hovw=259&tx=168&ty=123&sig=116875770795320479579&page=1&tbnh=133&tbnw=169&start=0&ndsp=15&ved=1t:429,r:14,s:0 • http://www.google.com/imgres?q=mariana+trench+pictures&um=1&hl=en&safe=active&sa=X&biw=1024&bih=653&tbm=isch&tbnid=IaYlwV4Df88kqM:&imgrefurl=http://iliketowastemytime.com/deep-dwellers-marianas-trench&docid=2i9nxRzseAfYAM&imgurl=http://iliketowastemytime.com/sites/default/files/mariana_trench_cutaway.jpg&w=550&h=521&ei=6VOYTreQNe6LsALgnrnbBA&zoom=1&iact=hc&vpx=710&vpy=152&dur=404&hovh=218&hovw=231&tx=189&ty=157&sig=116875770795320479579&page=1&tbnh=164&tbnw=173&start=0&ndsp=14&ved=1t:429,r:4,s:0 • http://www.cbsnews.com/2300-205_162-10006474-5.html?tag=page;next • http://www.imagegossips.com/2010/10/creatures-of-the-mariana-trench/ • http://www.google.com/imgres?q=cartoon+walking&um=1&hl=en&client=firefox-a&sa=N&rls=org.mozilla:en-US:official&biw=1200&bih=749&tbm=isch&tbnid=Auu2Zfscugv0mM:&imgrefurl=http://www.clipartoday.com/clipart/cartoons/cartoon/cartoon_267083.html&docid=3nWbUpScbAa8vM&imgurl=http://www.clipartoday.com/_thumbs/034/W/Walking_6_tnb.png&w=332&h=350&ei=BruYTpq2B6yEsgKj75W2BA&zoom=1&iact=hc&vpx=913&vpy=271&dur=229&hovh=231&hovw=219&tx=131&ty=156&sig=112669328313932470719&page=2&tbnh=161&tbnw=153&start=15&ndsp=17&ved=1t:429,r:11,s:15 • http://www.ceoe.udel.edu/extreme2001/mission/location/ridge.html • http://www.google.com/imgres?q=mariana+trench&um=1&hl=en&client=firefox-a&rls=org.mozilla:en-US:official&biw=1200&bih=749&tbm=isch&tbnid=DsiOuFUjXvOKoM:&imgrefurl=http://nipunscorp.com/tag/mariana-trench/&docid=SRaXmlOk_wRzLM&imgurl=http://nipunscorp.com/wp-content/uploads/2011/06/mariana-trench.jpg&w=468&h=266&ei=JcqYTtzEIsqusQKArKDOBA&zoom=1&iact=hc&vpx=828&vpy=215&dur=311&hovh=169&hovw=298&tx=186&ty=85&sig=111635484488958918220&page=1&tbnh=139&tbnw=244&start=0&ndsp=15&ved=1t:429,r:4,s:0 • http://www.google.com/imgres?imgurl=http://edu.glogster.com/media/5/31/99/98/31999857.jpg&imgrefurl=http://tsmith23.edu.glogster.com/&usg=__9Vauip-fM6v03QHVrk6fqk9meAA=&h=473&w=700&sz=264&hl=en&start=9&zoom=1&tbnid=4JXvKkHi-v-1oM:&tbnh=161&tbnw=231&ei=mMyYTq-oK-GHsgLtt427BA&prev=/search%3Fq%3Dunderwater%2Bocean%26um%3D1%26hl%3Den%26client%3Dfirefox-a%26sa%3DX%26rls%3Dorg.mozilla:en-US:official%26imgrefurl%3Dhttp://www.findit-247.com/photo-gallery/landscape%26imgurl%3Dhttp://www.findit-247.com/images/photo_gallery/landscapes/Underwater_Ocean.jpg%26w%3D3604%26h%3D2436%26sig%3D108031938144621442254%26ndsp%3D12%26biw%3D1200%26bih%3D749%26tbs%3Dsimg:CAQSEgkhMxU4X9pSIyFPU919c0_1KGA%26tbm%3Disch&um=1&itbs=1&iact=hc&vpx=119&vpy=281&dur=303&hovh=184&hovw=273&tx=186&ty=114&sig=108031938144621442254&page=1&ved=1t:429,r:8,s:0
http://www.google.com/imgres?q=iceland&um=1&hl=en&client=firefox-a&rls=org.mozilla:en-US:official&biw=1200&bih=749&tbm=isch&tbnid=w2TuEHsh3LeL4M:&imgrefurl=http://barbarossasblast.blogspot.com/2010/06/621-breathtaking-icelandoh-and-there.html&docid=KHyIL6EdCqwK4M&imgurl=http://1.bp.blogspot.com/_e2To-yAgaQU/TCERgAFhlTI/AAAAAAAAAd4/qmZcziyciIo/s1600/iceland.jpg&w=1024&h=819&ei=F9qYTo6HIOuAsgLUr-SqBA&zoom=1&iact=rc&dur=283&sig=106493850796218347142&page=2&tbnh=171&tbnw=195&start=12&ndsp=13&ved=1t:429,r:6,s:12&tx=61&ty=75http://www.google.com/imgres?q=iceland&um=1&hl=en&client=firefox-a&rls=org.mozilla:en-US:official&biw=1200&bih=749&tbm=isch&tbnid=w2TuEHsh3LeL4M:&imgrefurl=http://barbarossasblast.blogspot.com/2010/06/621-breathtaking-icelandoh-and-there.html&docid=KHyIL6EdCqwK4M&imgurl=http://1.bp.blogspot.com/_e2To-yAgaQU/TCERgAFhlTI/AAAAAAAAAd4/qmZcziyciIo/s1600/iceland.jpg&w=1024&h=819&ei=F9qYTo6HIOuAsgLUr-SqBA&zoom=1&iact=rc&dur=283&sig=106493850796218347142&page=2&tbnh=171&tbnw=195&start=12&ndsp=13&ved=1t:429,r:6,s:12&tx=61&ty=75 • http://www.google.com/imgres?q=San+Andreas+fault&um=1&hl=en&client=firefox-a&sa=N&rls=org.mozilla:en-US:official&biw=1200&bih=749&tbm=isch&tbnid=Dw1rHtXC_jVO5M:&imgrefurl=http://www.nps.gov/pore/naturescience/faults.htm&docid=VMKfFFzQai_8KM&imgurl=http://www.nps.gov/pore/naturescience/images/pic_sanandreasfault_285x285_3.jpg&w=285&h=285&ei=JuaYToibOIrDsQLTkszLBA&zoom=1&iact=hc&vpx=260&vpy=99&dur=434&hovh=225&hovw=225&tx=161&ty=134&sig=109997355298110176555&page=2&tbnh=168&tbnw=168&start=17&ndsp=16&ved=1t:429,r:1,s:17 • http://www.google.com/imgres?q=california+San+Andreas+fault&um=1&hl=en&client=firefox-a&rls=org.mozilla:en-US:official&biw=1200&bih=749&tbm=isch&tbnid=UAGxGvzfXmRCoM:&imgrefurl=http://explore.ecb.org/videos/VLC_media%3FP1%3DVLC103%26REFERER%3DOTHER&docid=9Nm7zfzEshgAyM&imgurl=http://video.ecb.org/badger/download/vlc/images/VLC103_San_Andreas_Fault.jpg&w=640&h=480&ei=mOaYTvGoHqWBsgKautTTBA&zoom=1&iact=hc&vpx=677&vpy=146&dur=57&hovh=194&hovw=259&tx=161&ty=102&sig=106392025663565249658&page=3&tbnh=153&tbnw=179&start=45&ndsp=15&ved=1t:429,r:8,s:45 • http://www.google.com/imgres?q=Cascade+Volcanoes&um=1&hl=en&client=firefox-a&sa=N&rls=org.mozilla:en-US:official&biw=1200&bih=749&tbm=isch&tbnid=kXflkUJa-0fM-M:&imgrefurl=http://vulcan.wr.usgs.gov/Volcanoes/Cascades/ImageMaps/CascadeRange/cascade_range.html&docid=CVeYWLVOLo0LzM&imgurl=http://vulcan.wr.usgs.gov/Imgs/Gif/Cascades/Maps/cascade_range.gif&w=763&h=720&ei=fu2YTq6cJMODsgLQ1_y4BA&zoom=1&iact=hc&vpx=114&vpy=217&dur=308&hovh=218&hovw=231&tx=84&ty=127&sig=109694944353071415768&page=1&tbnh=162&tbnw=172&start=0&ndsp=15&ved=1t:429,r:0,s:0 • http://www.google.com/imgres?q=ocean+floor&um=1&hl=en&client=firefox-a&sa=N&rls=org.mozilla:en-US:official&biw=1200&bih=749&tbm=isch&tbnid=sKKXwkouz9ijlM:&imgrefurl=http://zerowr.deviantart.com/art/Ocean-Floor-96504667&docid=UiI53kRMZrNIAM&imgurl=http://fc01.deviantart.net/fs37/f/2008/243/6/b/Ocean_Floor_by_ZeroWR.jpg&w=1024&h=768&ei=s92ZTpDCAe6HsAKbssnTBA&zoom=1&iact=rc&dur=350&sig=106034080360613167101&page=2&tbnh=162&tbnw=199&start=12&ndsp=15&ved=1t:429,r:5,s:12&tx=77&ty=99 • http://www.google.com/imgres?q=Mariana+trench+photos&um=1&hl=en&client=firefox-a&hs=js&sa=N&rls=org.mozilla:en-US:official&biw=1200&bih=749&tbm=isch&tbnid=YVdmb39plh7vTM:&imgrefurl=http://www.hseindiana.com/21-the-deepest-point-the-mariana-trench.html&docid=S6vcYtk4hhDJ4M&imgurl=http://www.hseindiana.com/wp-content/uploads/2011/09/Mariana-Trench-the-Deepest-Part-of-the-Worlds-Oceans.jpg&w=600&h=419&ei=St6ZTpjeN8yBsgLOg6XRBA&zoom=1&iact=hc&vpx=352&vpy=332&dur=627&hovh=188&hovw=269&tx=152&ty=122&sig=100225839224258873021&page=6&tbnh=161&tbnw=223&start=85&ndsp=12&ved=1t:429,r:1,s:85 • http://www.google.com/imgres?q=cascade+volcano&um=1&hl=en&client=firefox-a&sa=X&rls=org.mozilla:en-US:official&biw=1200&bih=749&tbs=isz:l&tbm=isch&tbnid=hrU6QrWg9___qM:&imgrefurl=http://cascadevolcanoes.blogspot.com/&docid=AEU4ZMe4A1r9wM&imgurl=http://1.bp.blogspot.com/_hYULki6Yo_0/S_Nk-KyjciI/AAAAAAAAAWo/FOxy9EYhTiE/s1600/CascadeMountains.jpg&w=1024&h=768&ei=mN-ZTvKVJseHsAKtha29BA&zoom=1&iact=hc&vpx=401&vpy=421&dur=1316&hovh=194&hovw=259&tx=103&ty=101&sig=102664146698713490809&page=3&tbnh=156&tbnw=210&start=30&ndsp=15&ved=1t:429,r:7,s:30 • http://www.google.com/imgres?q=izu+bonin&start=33&num=10&um=1&hl=en&client=firefox-a&rls=org.mozilla:en-US:official&biw=1200&bih=749&tbs=isz:l&tbm=isch&tbnid=Lpb7VaYLklbgnM:&imgrefurl=http://chipango.wordpress.com/2010/09/22/the-volcanic-deserts-of-miharayama/&docid=vOLyJGmvXsZ4rM&imgurl=http://chipango.files.wordpress.com/2010/09/100918002532.jpg&w=1000&h=899&ei=X-CZTrXACMWPsQKIsr2pBA&zoom=1&iact=hc&vpx=553&vpy=343&dur=258&hovh=213&hovw=237&tx=173&ty=157&sig=114284995777778924760&sqi=2&page=3&tbnh=153&tbnw=175&ndsp=18&ved=1t:429,r:8,s:33
Video Citations • http://www.youtube.com/watch?v=sgDM6m0lUGY • http://www.youtube.com/watch?v=IKmJEVZDI6c