SG
Member Since 1980
Stephen P. Grand
Professor, University of Texas at Austin
AGU Research
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High Resolution Seismic Tomography of India and Tibet: no correlation of crust and mantle lithosphere thickness, lithospheric thickness and elevation, or slabs beneath this region but ample seismically fast material (>1 %) above 1000 km to balance ~60 MY of convergence
THE FATE OF THE LITHOSPHERE DURING CONTINENTAL COLLISION: SLAB DEFORMATION, LITHOSPHERIC REMOVAL, AND TECTONIC SEGMENTATION IN ACTIVE OROGENIC SYSTEMS II ORAL
tectonophysics | 14 december 2023
David B. Rowley, Chujie Liu, Rupak Banerjee, Steph...
New high resolution (0.25 arcdegree by 10 km vertical) full waveform tomographic modeling (Liu, 2023, UT Austin PhD) that includes India and Tibet rev...
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Slab-Plume Interactions across North/Central America Revealed by Adjoint Tomography
UNUSUAL SUBDUCTION PROCESSES IV ORAL
study of earth's deep interior | 16 december 2022
Junlin Hua, Stephen P. Grand, Helen A. Janiszewski...
Subducting slabs and plumes are fundamental elements of large-scale mantle convection. When they interact, dynamic consequences such as slab deflectio...
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India-Asia Collision Tectonics Constrained from Full-Waveform Seismic Tomography
CONTINENTAL COLLISIONS: STRUCTURE AND EVOLUTION III ORAL
tectonophysics | 13 december 2022
Chujie Liu, Rupak Banerjee, Stephen P. Grand, Eric...
It has long been recognized that the Tibetan Plateau was created by the collision of the Indian and Eurasian plates. The upper mantle beneath Tibet ha...
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Extent and Evolution of the Indian Cratonic Lithosphere (ICL) Determined by Full Waveform Inversion Tomography
CONTINENTAL COLLISIONS: STRUCTURE AND EVOLUTION II POSTER
tectonophysics | 13 december 2022
Rupak Banerjee, Chujie Liu, Stephen P. Grand, Supr...
The Himalaya-Tibetan orogen is the best natural laboratory for investigating ongoing continental collision. To improve our understanding of the collis...
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Seismic Evidence for Lateral Heterogeneity in the Basal Layer of the Outer Core
EXPLORING THE EARTH’S CORE: CONSTRAINTS ON THE EARTH’S METALLIC HEART FROM MULTIDISCIPLINARY APPROACHES I
study of earth's deep interior | 09 december 2020
Peter Nelson, Stephen P. Grand, Fenglin Niu
Seismological studies have proposed that the bottom 200-400 km of the outer core, known as the F-layer, has a lower P velocity gradient than the rest ...
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Improved Joint Seismic-Geodynamic Tomography: Effects of Topography at Discontinuities in the Transition Zone on Mantle Heterogeneity and Convection-Related Observables
MANTLE EVOLUTION, DYNAMICS, CHEMISTRY, AND THE ROLE OF THE TRANSITION ZONE II POSTERS
study of earth's deep interior | 07 december 2020
Petar Glisovic, Stephen P. Grand, Chang Lu, Alessa...
Despite the progress in tomographic imaging of Earth’s interior, a number of critical questions regarding the large-scale structure and dynamics of th...
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The Sensitivity of Joint Inversions of Seismic and Geodynamic Data to Mantle Viscosity
GEOCHEMISTRY, GEOPHYSICS, GEOSYSTEMS
21 april 2020
Chang Lu, Alessandro M. Forte, Nathan A. Simmons, ...
Seismic tomography has revealed the existence of large‐scale velocity heterogeneities in the mantle. The interpretation of seismic velocity a...
Yellowstone Plume Conduit Tilt Caused by Large-Scale Mantle Flow
GEOCHEMISTRY, GEOPHYSICS, GEOSYSTEMS
10 december 2019
Bernhard M. Steinberger, Peter Nelson, Stephen P. ...
Mantle plumes are hot upwellings of rock thought to originate at the core‐mantle boundary. As they rise through the mantle, their conduits ma...