EP021
Reorganization of River Basins
Session ID#: 161648
Session Description:
River networks carve Earth’s surface into ridges and valleys and are conduits for sediment, water, nutrients, and organisms. Rivers can change in elevation by eroding their beds, but erosion can also change the shape and size of river basins. River basin reorganization occurs as drainage divides move either through gradual motion or discrete river capture. Such changes can be initiated by external forcing (e.g., climate and tectonics) as well as internal dynamics such as lateral channel migration, landslides, or geological structures.
This session invites contributions that explore any aspect of river basin reorganization, including studies that reconstruct paleo-river basins, investigate drivers of river basin evolution, or illustrate the implications of river basin dynamics for other Earth systems (e.g., sedimentary record, biological evolution). We welcome submissions from any disciplinary perspective, over any time and space scales, that use approaches ranging from field data to experimental or numerical modeling.
Index Terms:
1824 Geomorphology: general [HYDROLOGY]
1825 Geomorphology: fluvial [HYDROLOGY]
1826 Geomorphology: hillslope [HYDROLOGY]
8175 Tectonics and landscape evolution [TECTONOPHYSICS]
Primary Convener: Helen Willemien Dow, Pacific Coastal and Marine Science Center Santa Cruz, U.S. Geological Survey, Santa Cruz, United States
Conveners: Maya F. Stokes, Yale University, Department of Ecology & Evolutionary Biology, New Haven, CT, United States, Kristin Sweeney, University of Portland, Portland, OR, United States and William Struble, University of Arizona, Department of Geosciences, Tucson, United States
Do downstream patterns in bedrock valley confinement record landscape disequilibrium? (1114786)
Claire C Masteller, Washington University in St Louis, Earth and Planetary Sciences, St. Louis, MO, United States, Jedidiah Dale, Washington University in St Louis, St. Louis, MO, United States and Henry Chandler, Washington University in Saint Louis, Earth and Planetary Sciences, Saint Louis, United States
Drainage network reorganization in landscapes buried by glacial deposits (Invited) (1059612)
Jeffrey S Kwang, University of Minnesota Twin Cities, Saint Anthony Falls Laboratory, Minneapolis, United States, Andrew D Wickert, University of Minnesota Twin Cities, Department of Earth & Environmental Sciences and Saint Anthony Falls Laboratory, Minneapolis, United States and Isaac J Larsen, University of Massachusetts Amherst, Department of Geosciences, Amherst, United States
Erosion Through Layered Rocks Drives Drainage Divide Migration and Fish Dispersal in Southeast United States (1158345)
Maya F. Stokes1, Julia E Wood2, Dae-min Kim1, Zachariah D Alley3, Stuart W. McGregor4 and Thomas Near1, (1)Yale University, Department of Ecology & Evolutionary Biology, New Haven, CT, United States, (2)Yale University, Department of Ecology & Evolutionary Biology, New Haven, United States, (3)University of West Alabama, Edge Engineering and Science, Livingston, United States, (4)Geological Survey of Alabama, Tuscaloosa, United States
Initial incision of the Three Gorges and connection between the Upper and Middle Yangtze River since the Late Oligocene-early Miocene (1077271)
Ruohong Jiao, University of Victoria, Victoria, BC, Canada, Chaoqun Yang, Tianjin University, School of Earth System Science, Tianjin, China and Chuanbo Shen, China University of Geosciences, Key Laboratory of Tectonics and Petroleum Resources of the Ministry of Education, Wuhan, China
Landsliding sustains persistent ridge and valley migration in mountainous terrain (1124464)
Benjamin Campforts, University of Colorado Boulder, INSTAAR, Boulder, United States, Charles Shobe, West Virginia University, Department of Geology and Geography, Morgantown, WV, United States, Irina Overeem, University of Colorado, Institute of Arctic and Alpine Research and Department of Geological Sciences, Boulder, CO, United States and Gregory E Tucker, University of Colorado at Boulder, CIRES and Department of Geological Sciences, Boulder, United States
Late Quaternary Drainage Reorganization of Yamuna River in NW Indo-Gangetic Plain Inferred from Sr-Nd Isotope Ratios of Drill Core Sediments (1092970)
Mohd Amir1,2, Debajyoti Paul2, Anchana P2, Mohd Tarique3 and Waliur Rahaman3, (1)Indian Institute of Science Education and Research Pune, Department of Earth and Climate Science, Pune, India, (2)Indian Institute of Technology Kanpur, Department of Earth Sciences, Kanpur, India, (3)National Centre for Polar and Ocean Research, Goa, India
Miocene Cave Sediments Record Topographic, Erosional and Drainage Development in the Western European Alps (1103971)
Pieter van der Beek1, Francois Lemot2, Pierre Valla2, Marianna Jagercikova3, Samuel Niedermann4, Julien Carcaillet2, Edward R Sobel1, Sergio Ando5, Eduardo Garzanti5, Xavier Robert2 and Melanie Balvay2, (1)University of Potsdam, Institute of Geosciences, Potsdam, Germany, (2)University Grenoble Alpes, ISTerre, Grenoble, France, (3)La Tour, St. Maurice en Valgodemard, France, (4)Deutsches GeoForschungsZentrum, Potsdam, Germany, (5)University of Milano-Bicocca, Department of Earth and Environmental Sciences, Milan, Italy
Scale dependent structures in landscape curvature and their links to fluvial network development in the Oregon Coast Range (1156021)
Nathaniel Klema1, Leif Karlstrom2 and Josh J Roering2, (1)University of Oregon, Eugene, OR, United States, (2)University of Oregon, Department of Earth Sciences, Eugene, OR, United States
Topographic Advection: Concepts, Geomorphology Metrics, and Physical Processes (Invited) (1080167)
Yanyan Wang, ETH Zurich, Department of Earth Sciences, Zurich, Switzerland, Sean Willett, ETH Zürich, Department of Earth Sciences, Zürich, Switzerland and Eric Deal, ETH Zurich, Zurich, Switzerland
Topographic Response to Horizontal Advection in Landscapes Bounded by Normal Faults (1071499)
Mikael Attal1, Anthony Hoskins2, Miguel Castillo Rodríguez3 and Simon M Mudd1, (1)University of Edinburgh, School of GeoSciences, Edinburgh, United Kingdom, (2)University of Edinburgh, School of GeoSciences, Edinburgh, EH9, United Kingdom, (3)Universidad Nacional Autonoma de Mexico, Mexico City, Mexico
