Sea Floor Tectonics Earth Science Chapter 13 p 164 174 Scotts Mills 2006 April 26 7 24 AM Magnitude 3 0 Depth 19 km http pasadena wr usgs gov shake pnw STORE X4261424 06 ciim display html Atlantic oceanic ridge Passive Continental Margin Continental shelf Continental slope Continental rise Passive continental Margin location Passive continental Margin cross section Deep sea sediment fans Turbidity current Discovery of Turbidity Currents Sea floor landforms California Active Continental Margins Narrow continental shelf Deep sea trench catches terrigenous sediment Accretionary Wedge Active continental Margin location Active continental Margin cross section Deep Ocean Trenches Active continental margins Other convergent plate locations Most are in the Pacific Ocean Atlantic Ocean Floor Pacific and Indian Ocean Floor Kaiko ROV 10 990 m 1995 Challenger Deep shrimp http www mext go jp english news 1998 07 980705 htm Convergent Lithospheric Plates Oceanic plate is subducted Deep ocean trench is formed Volcanism above subducted plate Atoll formation Atoll Oceanic Plateaus Figure 10 19 Oceanic Plateaus Alvin Manned 4000 m maximum depth Oceanic Ridge Atlantic Oceanic Ridge Indian Oceanic Ridge Pacific Oceanic plate divergence http www soc soton ac uk CHD classroom sea carlsberg science constructive margins html Rift valleys on oceanic ridges Formation of Black Smoker http www paedquest de Riff Tiefsee Mangroven neu tiefsee content geobsm01 html Black Smoker with tube worms http www pbs org wgbh nova abyss life extremes2 html Pacific Lithosphere Action http www soc soton ac uk CHD classroom sea carlsberg science oceanic constr html Offshore oil platform Methane Hydrate sample Methane Hydrate burning Salt production Manganese Nodules
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