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Detailed Reference Information |
Carbonell, R., Lecerf, D., Itzin, M., Gallart, J. and Brown, D. (1998). Mapping the Moho beneath the Southern Urals with wide-angle reflections. Geophysical Research Letters 25: doi: 10.1029/1998GL900107. issn: 0094-8276. |
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A stack of the wide-angle reflection/refraction component of the URSEIS-95 experiment provides the first well-resolved imaged of the Moho beneath the southern Urals. The processing consisted of low pass filter (0--6 Hz), CMP sorting, and a NMO correction without stretch. The PmP phase, a very narrow band and low frequency (up to 6 Hz) wavelet, changes character from west to east along the transect. In the depth converted section, the Moho reaches a maximum depth of 53¿2 km beneath the Magnitogorsk arc. Thickness estimates determined from high amplitudes at near critical distances also support a 53 km thick crust. A selective offset stack consisting of traces at 150--250 km offset indicate an undulating, irregular Moho, suggesting either strong lateral velocity variations or high topographic relief beneath the Magnitogorsk arc. ¿ 1998 American Geophysical Union |
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Abstract |
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Keywords
History of Geophysics, Tectonophysics, Tectonophysics, Dynamics of lithosphere and mantle—general, Information Related to Geographic Region, Europe |
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Publisher
American Geophysical Union 2000 Florida Avenue N.W. Washington, D.C. 20009-1277 USA 1-202-462-6900 1-202-328-0566 service@agu.org |
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