EP11B:
Drainage Network Reorganization from Source to Sink I


Submit an Abstract to this Session


Session ID#: 61724

Session Description:
Changes in the topology of drainage networks through progressive drainage divide motion and/or discrete river capture events can have profound influences on both the geomorphology of source regions and the composition and volumes of the sedimentary fill of sink basins. We invite contributions from the surface processes and sedimentary geology communities focused on the mechanisms and/or implications of drainage network reorganization for both the upstream source regions and downstream depositional systems using either field or model-based approaches. Key questions to explore include 1) how are past changes in drainage networks recorded in the landscape, depositional record, or other means, 2) what conditions favor drainage network reorganizations, and 3) how prevalent, frequent, or important are large-scale drainage network reorganization events? We especially encourage studies reconciling data between source regions and lower reaches of a given drainage system. New methods for characterizing drainage divide migration or capture are also welcome.
Primary Convener:  Adam M Forte, Louisiana State University, Geology & Geophysics, Baton Rouge, LA, United States
Conveners:  Nicole M Gasparini, Tulane University, New Orleans, LA, United States and Prof. Peter Dominic Clift, MA, PhD, DSc, Louisiana State University, Department of Geology and Geophysics, Baton Rouge, United States
Primary Liaison:  Adam M Forte, Louisiana State University, Geology & Geophysics, Baton Rouge, LA, United States
Chairs:  Adam M Forte, Louisiana State University, Geology & Geophysics, Baton Rouge, LA, United States and Prof. Peter Dominic Clift, MA, PhD, DSc, Louisiana State University, Department of Geology and Geophysics, Baton Rouge, United States
OSPA Liaison:  Adam M Forte, Louisiana State University, Geology & Geophysics, Baton Rouge, LA, United States
Index Terms:

1815 Erosion [HYDROLOGY]
1825 Geomorphology: fluvial [HYDROLOGY]
1826 Geomorphology: hillslope [HYDROLOGY]
1861 Sedimentation [HYDROLOGY]

Abstracts Submitted to this Session:

The Influence of Bedrock Erodibility on Landscape Dynamics in Decay Phase Orogens and its Implications for Sedimentary Systems. (Invited) (395840)
Sean F Gallen, Colorado State University, Department of Geosciences, Fort Collins, United States
Base-level and lithologic controls of drainage reorganization in NW Argentina (355812)
Erin G Seagren, Simon Fraser University, School of Environmental Science, Burnaby, BC, Canada and Lindsay M Schoenbohm, Univ. of Toronto Mississauga, Toronto, ON, Canada
Coastal erosion and divide migration within the Santa Lucia Mountains, California (459283)
George E Hilley, Stanford University, Earth and Planetary Sciences, Stanford, United States and Holly Young, Stanford University, Stanford, CA, United States
Isolating the Conditions of Drainage Reorganization and its Impacts on Species Evolution using Numerical Models (426151)
Nathan J Lyons1, Nicole M Gasparini1, James S Albert2, Pedro Val3 and Jane K. Willenbring4, (1)Tulane University, Department of Earth and Environmental Sciences, New Orleans, LA, United States, (2)University of Louisiana, Department of Biology, Lafayette, LA, United States, (3)Federal University of Ouro Preto, Department of Geology, Ouro Preto, Brazil, (4)Scripps Institution of Oceanography, UC San Diego, La Jolla, CA, United States
Did a connection ever exist between the Yarlung Tsangpo- Irrawaddy-palaeo-Red Rivers? Implications for the use of palaeodrainage network reconstructions to document Tibetan tectonics. (409447)
Peng Zhang1, Yani Najman2, Lianfu Mei1, Ian Millar3, Edward R Sobel4, Andrew Carter5, Dan N Barfod6, Bruno Dhuime7, Eduardo Garzanti8, Gwladys Govin9, Giovanni Vezzoli10 and Peng Zhang11, (1)China University of Geosciences Wuhan, Wuhan, China, (2)University of Colorado at Boulder, Boulder, United States, (3)British Geological Survey, NERC Isotope Geosciences Laboratory, Nottingham, United Kingdom, (4)University of Potsdam, Institute of Geosciences, Potsdam, Germany, (5)University College London, London, United Kingdom, (6)Scottish Universities Environmental Research Centre, East Kilbride, United Kingdom, (7)University of Montpellier II, Montpellier Cedex 05, France, (8)University of Milan - Bicocca, Milan, Italy, (9)University of Lancaster, Lancaster, United Kingdom, (10)University of Milano-Bicocca, Laboratory for Provenance Studies, Department of Earth and Environmental Sciences, Milan, Italy, (11)China National Offshore Oil Corporation, Beijing, China
Holocene Evolution of the Tista Megafan (West Bengal, India) and its Source Catchment: Indications for a Major Capture by the Kosi River system (389513)
Pieter van der Beek1, Rachel Abrahami2,3, Taylor F. Schildgen4 and Pascale Huyghe2, (1)University of Potsdam, Institute of Geosciences, Potsdam, Germany, (2)Université Grenoble Alpes, ISTerre, Grenoble, France, (3)University of Chile, Santiago, Chile, (4)Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Potsdam, Germany
Recognizing Drainage Reorganization in the Stratigraphic Record: A Case study in the Neogene Bermejo Basin of the Central Andes (Invited) (393371)
Andrea Stevens Goddard, Rowan University, Department of Geology, Glassboro, NJ, United States, Barbara Carrapa, University of Arizona, Geosciences, Tucson, United States and R. Hernán Aciar, Centro Regional de Investigaciones Cientificas y Técnicas, La Rioja, Anillaco, Argentina

See more of: Earth and Planetary Surface Processes