HR: 1340h
AN: T13E-1629    [Abstracts]
TI: Investigation of Multiple Geophysical Parameters in the Russian Far East
AU: * Rowe, C
EM: char@lanl.gov
AF: Los Alamos National Laboratory, EES-11, M.S. D-408, Los Alamos, NM 87545, United States
AU: Phillips, W S
EM: wsp@lanl.gov
AF: Los Alamos National Laboratory, EES-11, M.S. D-408, Los Alamos, NM 87545, United States
AU: Steck, L
EM: lsteck@lanl.gov
AF: Los Alamos National Laboratory, EES-11, M.S. D-408, Los Alamos, NM 87545, United States
AU: Begnaud, M
EM: mbegnaud@lanl.gov
AF: Los Alamos National Laboratory, EES-11, M.S. D-408, Los Alamos, NM 87545, United States
AU: Hartse, H
EM: hartse@lanl.gov
AF: Los Alamos National Laboratory, EES-11, M.S. D-408, Los Alamos, NM 87545, United States
AU: Yang, X
EM: xyang@lanl.gov
AF: Los Alamos National Laboratory, EES-11, M.S. D-408, Los Alamos, NM 87545, United States
AU: Mackey, K
EM: mackeyke@msu.edu
AF: Michigan State University, Dept. of Geological Sciences 206 Natural Science Building, Lansing, MI 48824-1115, United States
AU: Fujita, K
AF: Michigan State University, Dept. of Geological Sciences 206 Natural Science Building, Lansing, MI 48824-1115, United States
AB: We investigate the structure of Eastern Russia using parameters extracted from the Michigan State University (MSU) Siberia database, compiled through cooperative efforts of MSU, Russian network operators and Los Alamos researchers. The database also includes information from teleseismic bulletins, such as those provided by the International Seismological Centre, U.S. Geological Survey and Alaska Earthquake Information Center. Selecting from the over 1.3 million phase arrival readings available in the database, we have inverted Pn arrivals to develop a tomographic image of upper mantle P-wave velocities using both direct and differential methods. Crustal P-wave travel times (Pg) are used to map the crustal velocities for the region. We are using catalog amplitude parameters to map laterally-varying compressional and shear wave attenuation features for the region from ~400,000 S and Sg amplitude readings and ~220,000 P and Pg amplitude readings. The results of our inversions will be compared with one another, and consistencies with known tectonic features in northeastern Russia will be compared, as well as the comparison with features derived for the region in previous work.
DE: 7203 Body waves
DE: 7205 Continental crust (1219)
DE: 7218 Lithosphere (1236)
DE: 7270 Tomography (6982, 8180)
DE: 9320 Asia
SC: Tectonophysics [T]
MN: 2007 Fall Meeting