HR: 1340h
AN: S13B-1058    [Abstracts]
TI: Crustal Structure Study In Turkey With Controlled Seismic Sources
AU: * Kuleli, S
EM: kuleli@erl.mit.edu
AF: Massachusetts Institute of Technology, 77 Massachusetts Ave. , Cambridge, MA 02139
AU: * Kuleli, S
EM: kuleli@erl.mit.edu
AF: Bogazici University, Kandilli Obeservatory and Earthquake Research Institute, Cengelkoy, Istanbul, 81220 Turkey
AU: Toksoz, M
EM: toksoz@erl.mit.edu
AF: Massachusetts Institute of Technology, 77 Massachusetts Ave. , Cambridge, MA 02139
AU: Gurbuz, C
EM: gurbuz@boun.edu.tr
AF: Bogazici University, Kandilli Obeservatory and Earthquake Research Institute, Cengelkoy, Istanbul, 81220 Turkey
AU: Gok, R
EM: gok1@llnl.gov
AF: Lawrence Livermore National Laboratory, 7000 East Ave, Livermore, CA 94550
AU: Schultz, C
EM: schultz9@llnl.gov
AF: Lawrence Livermore National Laboratory, 7000 East Ave, Livermore, CA 94550
AB: Seismic refraction data have been obtained from five strategically placed shots and several quarry blasts in Central and Eastern Anatolia. The largest shot, two tons in 14 boreholes, was in central Anatolia. It was monitored along three radial profiles (north, southeast, and southwest) with 90 temporary stations in addition to the permanent stations of the Turkish National Seismic Network. This shot was recorded to a distance of 300 km. Other smaller shots (up to one ton) were detonated in boreholes in northwest Anatolia, and southeastern Anatolia. Seismic data from three quarry blasts, recorded along linear profiles and distributed network stations, extended the coverage to eastern Anatolia. Travel time and waveform data were analyzed to obtain a 3-D crust, upper mantle velocity model. In central Anatolia crustal thickness varies between 37 and 42 km. The Pn velocity is about 8 km/sec. Crustal thickness changes laterally. It is thinner in northwest Anatolia and slightly thicker in eastern Anatolia. There are abrupt changes associated across the major fault zones, such as the North Anatolian Fault.
DE: 7218 Lithosphere and upper mantle
DE: 7219 Nuclear explosion seismology
DE: 7203 Body wave propagation
SC: Seismology [S]
MN: 2004 AGU Fall Meeting