Steve Grand

Research Scientist;
also Professor, Dept. of Geological Sciences

Ph.D., California Institute of Technology (1986);
B.Sc., McGill University (1978)

Telephone 512-471-3005
email: steveg at maestro.geo.utexas.edu

Steve's research interests involve determining the seismic structure of the Earth's mantle. This process includes seismic waveform modeling to determine detailed profiles of the upper mantle elastic velocities in various regions. Large scale tomographic inversions applied to travel time data determine the lateral variations throughout the mantle. Recently an inversion for mantle heterogeneity has been completed for the mantle beneath North and South America and the north Atlantic ocean. Seismic wave amplitude studies help determine the Q structure of the shallow mantle and show how it varies laterally. The ultimate goal of this work is to help determine the mineralogy and chemical composition of the mantle, the depth of tectonic plates, and the convection patterns in the mantle.

Currently Funded Research Projects

Comparison of Observed and Synthetic Waveforms for Seismic Event Location and Phase Association

Steve's UTIG Contributions (Publications)

To Steve's webpage at the Department of Geological Sciences.

Selected Publications

Ding, X. Y., and S. P. Grand, Mantle Q Structure Beneath the East Pacific Rise, Journal of Geophysical Research, 98, 1973-1985, 1993.

Ding, X. Y., and S. P. Grand, Seismic structure of the deep Kurile subduction zone, Journal of Geophysical Research, 99, 23,767-23,786, 1994.

Nolet, G., S. P. Grand, and B.L.N. Kennett, Seismic heterogeneity in the upper mantle, Journal of Geophysical Research, 99 23,753-23,766, 1994.

Grand, S. P., Mantle shear structure beneath the Americas and surrounding oceans, Journal of Geophysical Research, 99, 11,591-11,621, 1994.

Click here to see more publications.