EP32A:
Control from Above and Below: Interactions between Climate and Lithology in Landscape Evolution I

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Session ID#: 17716

Session Description:
Surface processes in eroding landscapes are influenced by local climate and by feedbacks among bedrock susceptibility to chemical weathering, physical rock properties (including fracture spacing and other spatial heterogeneities), and the history of past conditions.  In this session, we seek to explore how climate and bedrock properties modulate landform responses to environmental forcing and boundary conditions such as tectonic uplift.  Although scientific studies are often designed to intentionally isolate physical and chemical changes in bedrock and the critical zone, interactions among these changes likely influence surface processes. In addition, on Earth the physical and chemical breakdown of rock is often modulated by climate-dependent biota.  This session aims to foster a better understanding of physical and chemical process interactions and their roles in landscape evolution, and to also highlight a range of methodologies that are used to tackle these questions, including field, laboratory and numerical approaches.
Primary Convener:  Joel P L P Johnson, University of Texas at Austin, Department of Earth and Planetary Sciences, Jackson School of Geosciences, Austin, TX, United States
Conveners:  Nicole M Gasparini, Tulane University, Department of Earth and Environmental Sciences, New Orleans, LA, United States and Leonard S Sklar, San Francisco State University, San Francisco, CA, United States
Chairs:  Joel P L P Johnson, University of Texas at Austin, Department of Earth and Planetary Sciences, Jackson School of Geosciences, Austin, TX, United States and Nicole M Gasparini, Tulane University, Department of Earth and Environmental Sciences, New Orleans, LA, United States
OSPA Liaison:  Joel P L P Johnson, University of Texas at Austin, Department of Earth and Planetary Sciences, Jackson School of Geosciences, Austin, TX, United States

Cross-Listed:
  • B - Biogeosciences
  • GC - Global Environmental Change
  • H - Hydrology
  • P - Planetary Sciences
Index Terms:

1815 Erosion [HYDROLOGY]
1858 Rocks: chemical properties [HYDROLOGY]
1859 Rocks: physical properties [HYDROLOGY]
1886 Weathering [HYDROLOGY]

Abstracts Submitted to this Session:

Apparently spontaneous fracture of a granitic exfoliation dome: observations and monitoring (126620)
Brian D Collins, USGS Landslide Hazards Program, Moffett Field, United States, Greg M Stock, Yosemite National Park, El Portal, CA, United States, Martha Cary Eppes, University of North Carolina at Charlotte, Charlotte, NC, United States, Scott W Lewis, Condor Earth Technologies Inc., Sonora, CA, United States, Skye Corbett, USGS Western Regional Offices Menlo Park, Menlo Park, CA, United States and Joel Smith, U.S. Geological Survey, Denver, CO, United States
Hillslope evolution in landscapes dominated by layered rocks (150982)
Rachel Glade, Los Alamos National Laboratory, Geological Sciences, Los Alamos, NM, United States and Robert S Anderson, University of Colorado, Boulder, Department of Geological Sciences, Boulder, United States
The Influence of Stratigraphic History on Landscape Evolution (Invited) (148228)
Adam M Forte, Arizona State University, School of Earth and Space Exploration, Tempe, AZ, United States, Brian J Yanites, Indiana University Bloomington, Department of Earth and Atmospheric Sciences, Bloomington, IN, United States and Kelin X Whipple, Arizona State University, School of Earth and Space Exploration, Tempe, Arizona, United States
Transient Landscape Evolution is Characteristic of Post-Orogenic Decay: An Example from the Southern Appalachians, U.S.A. (174656)
Sean F Gallen, ETH Swiss Federal Institute of Technology Zurich, Geological Institute, Zurich, Switzerland
Testing the Control of Mineral Supply Rates on Chemical Erosion Rates in the Klamath Mountains (Invited) (173973)
Nicole West, Central Michigan University, Mount Pleasant, MI, United States and Ken Ferrier, Georgia Institute of Technology, Earth and Atmospheric Sciences, Atlanta, GA, United States
Modeling the feedbacks among chemical weathering, rock strength and abrasional wear in bedrock rivers (196850)
Brendan P Murphy, Simon Fraser University, Burnaby, BC, Canada, Joel P L P Johnson, University of Texas at Austin, Department of Earth and Planetary Sciences, Jackson School of Geosciences, Austin, TX, United States, Nicole M Gasparini, Tulane University, Department of Earth and Environmental Sciences, New Orleans, LA, United States and Leonard S Sklar, San Francisco State University, San Francisco, CA, United States
Insights into the relationship between climate and landscape: incorporating realistic climate and hydrology into a model of river incision (139720)
Eric Deal, University of Grenoble-Alpes, ISTerre, Grenoble, France, Gianluca Botter, University of Padua, Department of Civil, Environmental and Architectural Engineering, Padua, Italy and Jean Braun, University Joseph Fourier Grenoble, Grenboble, France
Quantifying the scale- and process- dependent reorganization of landscape under climatic change: inferences from an experimental landscape (177813)
Arvind Singh, University of Central Florida, Orlando, FL, United States, Alejandro Tejedor, St. Anthony Falls Laboratory, Minneapolis, MN, United States, Jean-Louis Grimaud, Universite Paul Sabatier, Varades, France, Ilya V Zaliapin, University of Nevada, Reno, Mathematics and Statistics, Reno, NV, United States and Efi Foufoula-Georgiou, University of California Irvine, Department of Civil and Environmental Engineering, Irvine, CA, United States

See more of: Earth and Planetary Surface Processes