Lecture7_2011.knr

Events on the ivf and gf at 500 yr bp ramelli et al

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Unformatted text preview: ptomonads Submersible Onshore and Offshore Mapping Scripps Institution of Oceanography Onshore and Offshore Mapping Liz Johnstone Scripps Institution of Oceanography Complex Bluff Geometry in Northern Solana Beach • I-Site Studio Software • Spherical Triangulation • Overhang Modeling Solana Beach Bluff Failure September 28, 2004 Before After May 12, 2004 September 28, 2004 Erosion and Accretion Areas of Failure Failure Volume 890 m3 ± 3% -4.0 0.0 Change (meters) 4.0 Scripps Institution of Oceanography Scripps Institution of Oceanography Scripps Institution of Oceanography Scripps Institution of Oceanography Scripps Institution of Oceanography Scripps Institution of Oceanography Seafloor and Subsurface Mapping Central Lobe Scripps Institution of Oceanography Seafloor and Subsurface Mapping Scripps Institution of Oceanography Scripps Institution of Oceanography Leah Hogarth Scripps Institution of Oceanography Rose Canyon Fault Offshore pop-up structure Seafloor and Subsurface Mapping midshelf wedge Transgressive surface Scripps Institution of Oceanography Seafloor and Subsurface Mapping Scripps Institution of Oceanography Seafloor and Subsurface Mapping midshelf wedge Transgressive surface Scripps Institution of Oceanography Seafloor and Subsurface Mapping The observed sediment thicknesses suggest sea level fluctuations and tectonics controls long-term sediment accumulation in the region and hydrodynamics controls sediment dispersion (Hogarth et al., 2007). Scripps Institution of Oceanography Scripps Institution of Oceanography Tectonic Deformation • controls landscapes and seascape evolution • resources - hydrocarbons and sand • Geohazards - earthquakes, slope failures, tsunamis • Biohabitats - through exposure of different lithology (rock types) Scripps Institution of Oceanography Scripps Institution of Oceanography Scripps Institution of Oceanography...
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