S040
Using observables to infer mantle physical state
Session ID#: 80025
Session Description:
As data quantity and quality increase, and methods to analyze it become increasingly sophisticated, a deep understanding of the mapping between geophysical and other model outputs, such as velocity, to physical state values, such as temperature, becomes necessary. However, uncertainty in the model outputs as well as the underlying physics creates challenges in using data to directly address questions relating to Earth processes. In this session, we welcome contributions from seismology, geophysics, petrology, and geochemistry that use observeables to infer the temperature, composition, flow, fabric, and melting state of the lithospheric and asthenospheric mantle, as well as methodological advances to this mapping
Index Terms:
3909 Elasticity and anelasticity [MINERAL PHYSICS]
5144 Wave attenuation [PHYSICAL PROPERTIES OF ROCKS]
7270 Tomography [SEISMOLOGY]
8124 Earth's interior: composition and state [TECTONOPHYSICS]
Primary Convener: Derek Schutt, Colorado State University, Geosciences, Fort Collins, CO, United States
Conveners: Saskia D B Goes, Imperial College London, Department of Earth Science and Engineering, London, United Kingdom and Richard C Aster, Colorado State University, Geosciences Department, Fort Collins, CO, United States
Primary Liaison: Derek Schutt, Colorado State University, Geosciences, Fort Collins, CO, United States
The effects of hydration and silica enrichment on the seismic velocity structure of the continental mantle lithosphere (Invited) (489192)
Lara S Wagner, Carnegie Institution for Science Washington, Department of Terrestrial Magnetism, Washington, DC, United States, Michael J Walter, Carnegie Institution for Science, Geophysical Laboratory, Washington, DC, United States, Yanhao Lin, Carnegie Institution for Science Washington, Geophysical Laboratory, Washington, DC, United States and Dionysis I Foustoukos, Geophysical Laboratory, Washington Dc, DC, United States
Advances in thermal models for the lithosphere: geotherm construction, uncertainties, and validation (Invited) (489292)
Derrick P Hasterok, University of Adelaide, Dept of Earth Sciences, Adelaide, SA, Australia, Matthew Gard, University of Adelaide, Adelaide, Australia, Saskia D B Goes, Imperial College London, Department of Earth Science and Engineering, London, United Kingdom, Derek Schutt, Colorado State University, Geosciences, Fort Collins, CO, United States and Samuel Jennings, University of Adelaide, Earth Sciences, Adelaide, Australia
Hydration State of the Upper Mantle in the Arc-Extended Backarc of Southern Cascadia and the Great Basin, western U.S., from Magnetotellurics (503538)
Philip E Wannamaker1, Virginia Maris1, Kevin Mendoza2, William Doerner3, John R Booker4 and Derrick P Hasterok5, (1)University of Utah, Energy & Geoscience Institute, Salt Lake City, UT, United States, (2)University of Utah, Geology & Geophysics, Salt Lake City, UT, United States, (3)Source One Geophysical, Inc., 10511 Golden Pine Road, Salt Lake City, CA, United States, (4)University of Washington, Dept of Earth and Space Sciences, Seattle, WA, United States, (5)University of Adelaide, Dept of Earth Sciences, Adelaide, SA, Australia
Continental Lithospheric Temperatures: A Review (509857)
Saskia D B Goes, Imperial College London, Department of Earth Science and Engineering, London, United Kingdom, Derrick P Hasterok, University of Adelaide, Dept of Earth Sciences, Adelaide, SA, Australia and Derek Schutt, Colorado State University, Geosciences, Fort Collins, CO, United States
Seismic-Wave Attenuation and the Grain-Boundary Sliding Rheology: A Test for the MLD and the LAB (519273)
Jeffrey J Park, Yale University, Geology & Geophysics, New Haven, CT, United States, Tolulope M Olugboji, University of Rochester, Earth and Environmental Sciences, Rochester, NY, United States and Shun-ichiro Karato, Yale University, Geology and Geophysics, New Haven, CT, United States
The Very Broadband Rheology Calculator: a tool for inference of thermodynamic state of the upper mantle from frequency-dependent mechanical behavior (587486)
Benjamin K Holtzman, Lamont Doherty Earth Observatory, Columbia Univ., Palisades, NY, United States, Christopher Havlin, Lamont-Doherty Earth Observatory, Palisades, NY, United States, Emily Hopper, Lamont -Doherty Earth Observatory, Palisades, NY, United States, Cedric Bellis, Laboratoire de Mecanique et d’Acoustique, Marseille, cedex 20, France, Joshua B Russell, LDEO - Columbia University, Palisades, NY, United States, Harriet C. P. Lau, University of California Berkeley, Berkeley, CA, United States and Pei-Ying Lin, Lamont -Doherty Earth Observatory, Palisades, United States
Using Calibrated Anelasticity Parameterisations to the Infer the Physical State of the Upper Mantle (588870)
Fred Richards1,2, Mark J Hoggard2,3 and Nicky White4, (1)Imperial College London, Earth Science and Engineering, London, United Kingdom, (2)Harvard University, Department of Earth and Planetary Sciences, Cambridge, MA, United States, (3)Columbia University, Lamont-Doherty Earth Observatory, Palisades, NY, United States, (4)University of Cambridge, Bullard Laboratories, Cambridge, United Kingdom
Improving 3D Density Estimation With Coupled Seismic and Gravity Inversion (601679)
Anthony R Lowry1, Xiaofei Ma2, Derek Schutt3, Ravi V S Kanda1 and Fan-Chi Lin4, (1)Utah State University, Geosciences, Logan, UT, United States, (2)Utah State University, Geology, Logan, UT, United States, (3)Colorado State University, Geosciences, Fort Collins, CO, United States, (4)University of Utah, Geology & Geophysics, Salt Lake City, UT, United States
High temperature beneath Marie Byrd Land is not compatible with very low mantle viscosity and rapid crustal motion (610316)
Valentina R. Barletta, Technical University of Denmark, National Space Institute, Kgs. Lyngby, Denmark, Andrea Bordoni, Technical University of Denmark, Institut for Matematik og Computer Science, Kgs Lyngby, Denmark, Johan Nilsson, NASA Jet Propulsion Laboratory, Pasadena, United States, Michael G Bevis, Ohio State University Main Campus, Columbus, OH, United States, Sebastian Simonsen, Technical University of Denmark - Space, Kongens Lyngby, Denmark, Terry J Wilson, Ohio State University, Columbus, OH, United States, Grace A Nield, Durham University, Durham, United Kingdom and Fausto Ferraccioli, NERC British Antarctic Survey, Cambridge, United Kingdom
Thermochemical imaging of the lithosphere and upper mantle from geophysical observations: what can we really see? (624695)
Walid Ben Mansour1, Juan Carlos Afonso1, Nicole Januszczak2, Andrew Macdonald3, Guust Nolet4, Yosuke Aoki5 and Farshad Salajegheh6, (1)Macquarie University, Sydney, NSW, Australia, (2)De Beers Group of Companies, Exploration, Canada, Toronto, ON, Canada, (3)De Beers Group of Companies, Exploration, South Africa, Johannesburg, South Africa, (4)GeoAzur/UNSA, Sophia Antipolis, France, (5)Univ Tokyo, Bunkyo-Ku, Tokyo, Japan, (6)Macquarie University, Earth and Planetary Sciences, Sydney, NSW, Australia
