EP022
Lacustrine Subbottom Geology and Physical Dynamics
Session ID#: 76278
Session Description:
Lake cores record local and regional climate change. Grain size analyses have mainly shown histories of flood events, but also of earthquake induced landslides. GPR and acoustic-seismic surveys have confirmed that layers of relatively coarser sediments are turbidites, while their structures reveal the same turbidity current dynamics interpreted from large-scale marine studies, but with far greater detail, including those within pre-Holocene events. This session welcomes presentations of geophysical, core-based, and any other evidence of subbottom sedimentary architecture, including but not limited to slumps, slides, faults, and unconformities, and their causes including storms, earthquakes, ice quakes or outburst floods. Presentations may involve present lakes both large (greater than one km in length) and small, including ponds and bogs, or ancient lakes, as may be seen in exposed formations. We also welcome presentations that discuss hydrologic, including stream gauge studies, and landscape evolution implications of lacustrine sedimentation.
Index Terms:
1130 Geomorphological geochronology [GEOCHRONOLOGY]
1165 Sedimentary geochronology [GEOCHRONOLOGY]
4942 Limnology [LIMNOLOGY]
4943 Paleolimnology [LIMNOLOGY]
Primary Convener: Steven A Arcone, Dartmouth College, Thayer School, Hanover, NH, United States
Conveners: Lisa Doner, Plymouth State University, Environmental Science and Policy, Plymouth, NH, United States and Amanda May, Plymouth State University, Environmental Science and Policy, Plymouth, NH, United States
Primary Liaison: Steven A Arcone, Dartmouth College, Thayer School, Hanover, NH, United States
Source-to-sink observations of recent flood deposits in New England lakes (494230)
Noah P Snyder1, Tim Cook2, Tania Figueroa-Colón3, Sarah Jonathan1, James Michael LeNoir1 and Turtle McCloskey-Potter4, (1)Boston College, Earth and Environmental Sciences, Chestnut Hill, MA, United States, (2)University of Massachusetts, Amherst, MA, United States, (3)University of Puerto Rico Mayaguez, Mayaguez, PR, United States, (4)Southern Oregon University, Ashland, OR, United States
Deformation Styles and Sedimentation Patterns documented in Lake Issyk–Kul, Tienshan Mountain Range, Kyrgyzstan – Evidence from a Recent Seismoacoustic Survey to Support ICDP Drilling (524476)
Volkhard Spiess1, Hanno Keil1, Jonah Geils1, Daniel Cammarata1, Erkin Rahimdinov2, Anna Reusch3, Bernd Wagner4 and Kanatbek Abdrakhmatov2, (1)University of Bremen, Bremen, Germany, (2)Institute of Seismology NAS KR, Bishkek, Kyrgyz, (3)University of Bremen, Geosciences, Bremen, Germany, (4)University of Cologne, Institute of Geology and Mineralogy, Cologne, Germany
Seismic Interpretation of Nearshore Sedimentation Variation in Relation to Land Use: Lake Tanganyika, Africa (540501)
Michael Behm1, Madison H Williams2, Michael M McGlue3, Kevin M Yeager3 and Michael J Soreghan1, (1)University of Oklahoma Norman Campus, School of Geosciences, Norman, OK, United States, (2)University of Oklahoma Norman Campus, School of Geosciences, Norman, United States, (3)University of Kentucky, Earth and Environmental Sciences, Lexington, KY, United States
Characterizing Earthquake Generated Turbidites in Sediments from Jenny Lake, Grand Teton National Park, WY (556430)
Aria Blumm1, Darren Jon Larsen1, Sarah E Crump2 and Mark B Abbott3, (1)Occidental College, Department of Geology, Los Angeles, CA, United States, (2)University of Colorado at Boulder, Institute of Arctic and Alpine Research, Boulder, CO, United States, (3)University of Pittsburgh, Department of Geology and Environmental Science, Pittsburgh, PA, United States
Paleoclimate, Paleoenvironment, and Paleoecology of Neogene Central America: Bridging Continents and Oceans (NICA-BRIDGE) (573832)
Steffen Kutterolf1, Mark Brenner2, Armin Freundt1, Jens Kallmeyer3, Sergei Katsev4, Sebastian Krastel5, Axel Meyer6, Liseth Perez7, Juanita Rausch8, Armando Saballos9, Antje Schwalb7 and Wilfried Strauch10, (1)GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany, (2)University of Florida, Ft Walton Beach, FL, United States, (3)GFZ Potsdam, Geomicrobiology, Potsdam, Germany, (4)University of Minnesota Duluth, Duluth, MN, United States, (5)University of Kiel, Institut fuer Geowissenschaften, Kiel, Germany, (6)University of Konstanz, Institute of Zoology and Evolutionary Biology, Konstanz, Germany, (7)Technical University of Braunschweig, Braunschweig, Germany, (8)University of Fribourg, Fribourg, Switzerland, (9)Instituto Nicaragüense de Estudios Territoriales, Managua, Nicaragua, (10)INETER Instituto Nicaragüense de Estudios Territoriales, Managua, Nicaragua
Lake Sediment Signatures of Motor Boat Usage in New England Since AD 1910 (599179)
Lisa Doner, Plymouth State University, Environmental Science and Policy, Plymouth, NH, United States and Melissa Macheras, Plymouth State University, Environmental Science & Policy, Plymouth, NH, United States
