T021
Feedbacks between Tectonics, Geodynamics, and Depositional Systems at Collisional Margins
Session ID#: 79776
Session Description:
Cross-disciplinary studies of collisional margins reveal spatial and temporal feedbacks between tectonics, climate, sediment dispersal patterns, sea-level, and surface processes, including human-landscape interactions and seismic hazards. The interplay of rapid erosion in tandem with active tectonics and sea-level oscillations produces dynamic source-to-sink systems. For example, the Indus and Ganges-Brahmaputra rivers deliver Himalayan sediment to the Indus and Bengal basins flanking the collision. Human populations further contribute to and are impacted by the geodynamic, seismogenic, and delta-fan processes of such regions. This session seeks to highlight tectonic and sedimentological feedbacks in modern and/or ancient collisional margin settings, including human-landscape interactions. We especially invite integrated studies of active faulting and tectonic deformation, rock exhumation and topographic relief, as well as plate margin geodynamics and isostasy, stratigraphy and delta-fan processes. We encourage interdisciplinary contributions including: structural geology and tectonics, sedimentology and stratigraphy, sea-level reconstructions, geophysics, geomorphology, geohazards, geo- and thermochronology, paleoseismology, and IODP.
Index Terms:
8104 Continental margins: convergent [TECTONOPHYSICS]
8107 Continental neotectonics [TECTONOPHYSICS]
8169 Sedimentary basin processes [TECTONOPHYSICS]
8175 Tectonics and landscape evolution [TECTONOPHYSICS]
Primary Convener: Paul M Betka, Lamont -Doherty Earth Observatory, Palisades, NY, United States
Conveners: Elizabeth L Chamberlain, Vanderbilt University, Dept. of Earth and Environmental Sciences, Nashville, TN, United States, Céline Grall, Lamont -Doherty Earth Observatory, Palisades, United States and Ryan Sincavage, Vanderbilt University, Nashville, TN, United States
Primary Liaison: Paul M Betka, University of Texas at Austin, Austin, TX, United States
New Insights into Sediment Provenance and Climate along the IndoBurma Ranges, Eastern Bangladesh (509340)
Cecilia M McHugh1, Cecilia M. McHugh2, Leonardo Seeber3, Michael S Steckler3, Robert J Schenck4, Syed Humayun Akhter5, Troy Rasbury6,7, Katie Wooton8 and Dhiman Ranjan Mondal9, (1)Queens College, City University of New York and Lamont Doherty Earth Observatory, USA, Flushing, NY, United States, (2)Lamont-Doherty Earth Observatory of Columbia University, Palisades, United States, (3)Lamont-Doherty Earth Obs, Palisades, NY, United States, (4)CUNY Queens College, Flushing, NY, United States, (5)University of Dhaka, Department of Geology, Dhaka, Bangladesh, (6)SUNY Stonybrook, Stony Brook, NY, United States, (7)Stony Brook University, Stony Brook, NY, United States, (8)Stony Brook University, Stony Brook, United States, (9)MIT Haystack Observatory, Westford, MA, United States
Quantifying Regional Stratigraphic Correlations and Provenance from Miocene–Pliocene deposits of the Ancestral Brahmaputra Delta, a Record of Eastern Himalayan Exhumation and the Onset of the Indian Monsoon (510211)
Paul M Betka1,2, Karl A Lang3, Stuart N Thomson4, Ryan Sincavage5, C. Zoramthara6, C. Lalremruatfela7, Devojit Bezbaruah8, Pardip Borgohain8, Leonardo Seeber9 and Michael S Steckler9, (1)Lamont -Doherty Earth Observatory, Palisades, NY, United States, (2)George Mason University, Fairfax, VA, United States, (3)CUNY Queens College, School of Earth and Environmental Sciences, Flushing, NY, United States, (4)University of Arizona, Department of Geosciences, Tucson, AZ, United States, (5)Vanderbilt University, Nashville, TN, United States, (6)Government Zirtiri Residential Science College, Geology, Aizawl, India, (7)Government Zirtiri Residential Science College, Aizawl, India, (8)Dibrugarh University, Dibrugarh, India, (9)Lamont-Doherty Earth Obs, Palisades, NY, United States
Structural and Sedimentological evolution of the Çankiri Basin: Implications for Early-Middle Miocene Plateau Development During Protracted Paleogene Intercontinental Collision in Central Anatolia (Turkey) (517118)
Clay Campbell1, Michael H Taylor1, Faruk Ocakglu2, Alexis Licht3, Megan Mueller4 and Andreas Mӧller1, (1)University of Kansas, Lawrence, KS, United States, (2)Eskişehir Osmangazi University, Eskişehir, Turkey, (3)University of Washington, Earth and Space Sciences, Seattle, WA, United States, (4)University of Washington, Seattle, WA, United States
Megamountains, megarivers and megafloods: Impact of tectonics and surface processes on sedimentary records of the Eastern Himalaya (Invited) (518515)
Katharine W Huntington1, Karl A Lang2, Michael D Turzewski1 and Alexis Licht1, (1)University of Washington, Seattle, WA, United States, (2)CUNY Queens College, Flushing, NY, United States
Updated Vertical and Horizontal GPS Velocity Field in Bangladesh (529915)
Bar Oryan, Lamont -Doherty Earth Observatory, Palisades, NY, United States, Michael S Steckler, Lamont-Doherty Earth Obs, Palisades, NY, United States, Dhiman Ranjan Mondal, CUNY Queens College, Flushing, NY, United States, Syed Humayun Akhter, University of Dhaka, Department of Geology, Dhaka, Bangladesh and Sanju Singha, University of Dhaka, Geology Department, Dhaka, Bangladesh
Active Deformation and Plio-Pleistocene Fluvial Reorganization of the Western Kura Fold-Thrust Belt, Georgia: Implications for the Evolution of the Greater Caucasus Mountains and Seismic Hazard (556699)
Lasha Sukhishvili1, Adam Matthew Forte2, Giorgi Merebashvili1, Zurab Javakhishvili1 and Tea Godoladze3, (1)Ilia State University, Institute of Earth Sciences and National Seismic Monitoring Centre, Tbilisi, Georgia, (2)Louisiana State University, Department of Geology & Geophysics, Baton Rouge, LA, United States, (3)Ilia State University, Institute of Earth Sciences and National Siesmic Monitoring Centre, Tbilisi, Georgia
Along-Strike Changes in Foreland Basin Responses to Tectonics and Eustasy in the Magallanes-Austral Basin, Patagonia Revealed from Basin Modeling and Geothermochronology (588429)
Rebecca A VanderLeest, University of Connecticut, Department of Geosciences, Groton, CT, United States, Julie C Fosdick, University of Connecticut, Department of Geosciences, Storrs, CT, United States, Theresa Schwartz, USGS, Geosciences & Environmental Change Science Center, Lakewood, CO, United States, Matthew A Malkowski, Stanford University, Geological Sciences, Stanford, CA, United States and Ali Rsme, Indiana University Bloomington, Department of Earth and Atmospheric Sciences, Bloomington, United States
Nicobar Fan provenance evolution – A fingerprint using zircon Hf isotopes (591923)
Tiago Jonatan Girelli1, Farid Chemale Jr1, Andrew Carter2, Kevin T Pickering2 and Cristiano Lana3, (1)Universidade do Vale do Rio dos Sinos, Sao Leopoldo, Brazil, (2)University College London, London, United Kingdom, (3)UFOP-Federal University of Ouro Preto, Ouro Preto, Brazil
Glacially-derived overpressure in the Bering Trough region, offshore southern Alaska: Velocity-porosity analysis of shallow sediments (624499)
Wesley A Clary, University of New Mexico Main Campus, Albuquerque, NM, United States, Lindsay Lowe Worthington, University of New Mexico, Albuquerque, NM, United States, Hugh Daigle, The University of Texas at Austin, Hildebrand Department of Petroleum and Geosystems Engineering, Austin, TX, United States, Sean P S Gulick, The University of Texas at Austin, Department of Geological Sciences, Austin, TX, United States and Harm J Van Avendonk, University of Texas at Austin, Austin, TX, United States
Heavy mineral assemblage in the Himalayan river tributaries and correlation to Bengal Fan deposits (629657)
Kohki Yoshida, Shinshu University, Institute of Science, School of Science and Technology, Matsumoto, Japan, Lalit Kumar Rai, Shinshu University, Department of Science and Technology, Graduate School of Medicine, Science and Technology, Matsumoto, Japan and M C Manoj, Birbal Sahni Institute of Palaeosciences, Lucknow, India
