EP33E:
Mass Extraction and Grain Size Fractionation in Sediment Routing Systems: Tracking Sediment from Upland Catchments to the Deep Ocean I


Session ID#: 8927

Session Description:
Sediment routing systems carve and construct land- and sea-scapes through erosion, transport and deposition of sediment. Quantifying controls on mass extraction through selective deposition and grain size sorting within sediment transport systems is of paramount importance for predicting geohazards, natural resources, and land/sea-scape evolution. Interactions between fluid, topography and sediment in transport systems subject to steady or changing boundary conditions result in a complex array of local and down-system variability in grain-size. Inverting the resulting stratigraphic record to isolate the key variables can be tremendously challenging. This session will focus on building links between grain size trends, sediment transport dynamics, landscape evolution and basin-scale forcings over diverse spatiotemporal scales. We solicit contributions that use field-based datasets, experimental/ numerical models, and statistical methods to quantify grain-size patterns at a range of scales (from dunes and bars to whole continental margins), and/or temporal changes in grain-size patterns preserved in the stratigraphic record.
Primary Convener:  Zane R Jobe, Shell Houston, Houston, TX, United States
Conveners:  Anjali M Fernandes, Tulane University of Louisiana, Earth and Environmental Sciences, New Orleans, LA, United States, Nick C Howes, Shell, Houston, TX, United States and Elizabeth A Hajek, Pennsylvania State University, Department of Geosciences, University Park, United States
Chairs:  Zane R Jobe, Shell Houston, Houston, TX, United States, Anjali M Fernandes, The University of Connecticut, Center for Integrative Geosciences, Storrs, CT, United States, Nick C Howes, Shell, Houston, TX, United States and Elizabeth A Hajek, Pennsylvania State University, Department of Geosciences, University Park, United States
OSPA Liaison:  Anjali M Fernandes, The University of Connecticut, Center for Integrative Geosciences, Storrs, CT, United States

Cross-Listed:
  • GC - Global Environmental Change
  • NH - Natural Hazards
  • OS - Ocean Sciences
  • T - Tectonophysics
Co-Sponsor(s):
  • SEPM: Society for Sedimentary Geology -
Index Terms:

1625 Geomorphology and weathering [GLOBAL CHANGE]
1862 Sediment transport [HYDROLOGY]
3022 Marine sediments: processes and transport [MARINE GEOLOGY AND GEOPHYSICS]
4217 Coastal processes [OCEANOGRAPHY: GENERAL]

Abstracts Submitted to this Session:

Grain size trends reveal alluvial fan sensitivity to late Pleistocene climate change (Invited) (72133)
Alexander C Whittaker1, Mitch Keith D'Arcy2 and Duna C. Roda-Boluda2, (1)Imperial College London, Department of Earth Science & Engineering, London, United Kingdom, (2)Imperial College London, Earth Science and Engineering, London, United Kingdom
Hydrodynamic controls on the downstream elimination of gravel, and implications for fluvial-deltaic stratigraphy: two end-member case studies from the Selenga River, Russia, and the Mississippi River, U.S.A. (81319)
Jeffrey A Nittrouer, Rice University, Department of Earth, Environmental, and Planetary Sciences, Houston, TX, United States
Evaluating process origins of sand-dominated fluvial stratigraphy (Invited) (70281)
Ellen Chamberlin, Pennsylvania State University Main Campus, University Park, PA, United States and Elizabeth A Hajek, Pennsylvania State University Main Campus, Department of Geosciences, University Park, United States
Linking process, morphology, and stratigraphy in the Ganges-Brahmaputra-Meghna delta (85226)
Carol Wilson1, Steven Lee Goodbred Jr2, Ryan Sincavage3, Michael S Steckler4 and Jennifer Pickering1, (1)Vanderbilt University, Nashville, TN, United States, (2)Vanderbilt University, Department of Earth and Environmental Sciences, Nashville, TN, United States, (3)Radford University, Geology Department, Radford, VA, United States, (4)Columbia University of New York, Lamont-Doherty Earth Observatory, Palisades, NY, United States
Mass balance, bedload extraction, surface morphology, and Holocene stratigraphic architecture along distinct sediment transport pathways of the Brahmaputra River in Bengal Basin (Invited) (74498)
Ryan Sincavage, Radford University, Geology Department, Radford, VA, United States, Steven Lee Goodbred Jr, Vanderbilt University, Department of Earth and Environmental Sciences, Nashville, TN, United States, Carol Wilson, Louisiana State University, Geology & Geophysics, Baton Rouge, LA, United States, Jennifer Pickering, Vanderbilt University, Nashville, TN, United States and Chris Paola, University of Minnesota, Minneapolis, MN, United States
Source-to-Sink Sediment-Budget Variability in Southern California (Invited) (62251)
Jacob A Covault, Bureau of Economic Geology, The University of Texas at Austin, Austin, TX, United States, Brian Romans, Virginia Polytechnic Institute and State University, Department of Geosciences, Blacksburg, VA, United States, George E Hilley, Stanford University, Earth and Planetary Sciences, Stanford, United States, Bodo Bookhagen, University of Potsdam, Potsdam, Germany and Andrea Fildani, Statoil Gulf ASA, Houston, TX, United States
Early Pliocene Hiatus in Sand Output by the Colorado River: Evidence From Marine Deposits in the Salton Trough, Southern California (62176)
Rebecca J Dorsey, University of Oregon, Department of Earth Sciences, Eugene, OR, United States and Ann Bykerk-Kauffman, California State University Chico, Chico, CA, United States
Quantification and implications of the grain-size segregation and similar volumes between submarine slope and basin-floor deposits (75202)
David Hodgson1, Rufus Brunt2 and Stephen S Flint2, (1)University of Leeds, School of Earth and Environment, Leeds, United Kingdom, (2)University of Manchester, Department of Earth and Environmental Sciences, Manchester, United Kingdom

See more of: Earth and Planetary Surface Processes