David C. Twichell
U.S. Geol Survey, Woods Hole, MA
Activity
2011
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THE EVOLUTION OF HEWE'S POINT, CHANDELEUR ISLANDS, LA: A RARE NATURAL RESOURCE
1 Our Dynamic Coasts: Delta Plain Management—What Are We Learning From the Geological Record?Monday, 28 March 20118:00 AM - 9:45 AMD.H. Holmes A & B
2009
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GEOMORPHIC-BASED BARRIER ISLAND TRANSGRESSION MANAGEMENT, CHANDELEUR ISLANDS, LOUISIANA
T229 Improving Coastal Hazards Mitigation through Advances in Coastal GeomorphologyWednesday, 21 October 20098:00 AM - 12:00 PMB117/118/119
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THE GEOLOGIC FRAMEWORK OF THE CHANDELEUR ISLANDS, LOUISIANA: INSIGHT INTO THE HISTORY AND FATE OF A FRAGILE ECOSYSTEM
4 Morphodynamics of Coastal Depositional Systems IThursday, 12 March 20098:30 AM - 12:30 PM
2008
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Assessing the Importance of Shoreward Vs. Alongshore Sand Transport during the Late Holocene Evolution of the Chandeleur Islands, LA
T227 The Mississippi River Delta as a Natural Laboratory for Evaluating Coastal Response to Relative Sea-Level Rise and Innovations in Transgressive Coastal Management: Shea Penland Memorial SessionTuesday, 7 October 20088:00 AM - 12:00 PM
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Regional Coastal Evolution along the Mississippi River Delta Plain Barrier Shorelines
T227 The Mississippi River Delta as a Natural Laboratory for Evaluating Coastal Response to Relative Sea-Level Rise and Innovations in Transgressive Coastal Management: Shea Penland Memorial SessionTuesday, 7 October 20088:00 AM - 12:00 PM
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Preliminary Assessment of Transport Trends in a Transgressive Barrier Island Chain Using Multidimensional Numerical Models
T227 The Mississippi River Delta as a Natural Laboratory for Evaluating Coastal Response to Relative Sea-Level Rise and Innovations in Transgressive Coastal Management: Shea Penland Memorial SessionTuesday, 7 October 20088:00 AM - 12:00 PM
2004
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SEDIMENT ACCUMULATIONS ON THE BOTTOM OF LAKE MEAD: A 70-YEAR RECORD OF DEPOSITIONAL PROCESSES
T238 Geologic History and Processes of the Colorado RiverWednesday, 10 November 20041:30 PM - 5:30 PM
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STRATIGRAPHIC EVOLUTION OF LAS VEGAS BAY, LAKE MEAD, NEVADA: 1935 – 2002, PART 1 – THE SUBMERGED PORTION
T12 Lacustrine Records of Landscape EvolutionSunday, 7 November 20048:00 AM - 12:00 PM
2003
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EVIDENCE FOR MODERATELY LOW RATES OF HOLOCENE SEDIMENT ACCUMULATION ON THE MID SHELF ADJACENT TO THE COLUMBIA RIVER LITTORAL CELL, WASHINGTON
234 Marine/Coastal ScienceWednesday, 5 November 20031:30 PM - 5:30 PM
2001
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MORPHOLOGY AND EROSIONAL DEVELOPMENT OF THE BLAKE ESCARPMENT, A MASSIVE SUBMARINE CARBONATE CLIFF
T168 The Margins of Reefs and Carbonate PlatformsThursday, 8 November 20018:00 AM - 12:00 PM
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THE SOUTHWEST WASHINGTON SHELF: IS IT A SOURCE FOR BEACH SAND?
T142 Coastal Erosion Programs: Collaborative Geologic Research in ActionWednesday, 7 November 20011:30 PM - 5:30 PM
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EVOLUTION OF THE WEST-CENTRAL FLORIDA INNER CONTINENTAL SHELF AND BARRIER ISLAND SYSTEM: A REGIONAL PERSPECTIVE ON SEDIMENT ACCUMULATION PATTERNS
T142 Coastal Erosion Programs: Collaborative Geologic Research in ActionWednesday, 7 November 20011:30 PM - 5:30 PM
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COASTAL EVOLUTION IN THE COLUMBIA RIVER LITTORAL CELL
T142 Coastal Erosion Programs: Collaborative Geologic Research in ActionWednesday, 7 November 20011:30 PM - 5:30 PM
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USING REMOTE SENSING TOOLS AND GIS TO MAP THE GEOLOGY OF THE FLOOR OF LAKE MEAD, NEVADA
T50 Geology in the National Parks; Research, Mapping, Education, and InterpretationMonday, 5 November 20011:30 PM - 5:30 PM
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GEOLOGIC FRAMEWORK AND RECENT GEOLOGIC HISTORY OF THE WEST-CENTRAL FLORIDA INNER CONTINENTAL SHELF AND BARRIER ISLAND SYSTEM: SUMMARY OF FINDINGS
T41 America's Coastal Crisis—Providing the Geoscience Information Needed to Conserve and Protect Coastal Resources (Posters)Monday, 5 November 20011:30 PM - 5:30 PM
Date Unknown
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Geologic Controls on the Distribution of Submarine Landslides along the U.S. Atlantic Continental Margin
T149 Oceanic Geohazards: Distribution, Controls, and Risks (Posters)
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REVIEW OF RECENT DEPOSITIONAL PROCESSES ON THE MISSISSIPPI FAN, GULF OF MEXICO
T124 The Gulf of Mexico—Past, Present, and Future: Relating Ecology to Geology (Posters)
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SEDIMENT DEPOSITION IN LAS VEGAS BAY, LAKE MEAD, NV: IMPLICATIONS FOR MARINE SANDSTONE DISTRIBUTIONS
87 Sediments, Clastic (Posters) I
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Assessment of Tsunami Hazard to the U.S. East Coast Using Relationships Between Submarine Landslides and Earthquakes
T149 Oceanic Geohazards: Distribution, Controls, and Risks (Posters)
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PULLEY RIDGE: THE US'S DEEPEST HERMATYPIC CORAL REEF?
T124 The Gulf of Mexico—Past, Present, and Future: Relating Ecology to Geology (Posters)
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LANDSCAPE MODIFICATION AND SEDIMENT MIXING BY RED GROUPER AND OTHER FISH ON THE WEST FLORIDA SHELF
T124 The Gulf of Mexico—Past, Present, and Future: Relating Ecology to Geology (Posters)