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Título: | Mapping the Moho beneath the Southern Urals with wide-angle reflections |
Autor: | Carbonell, Ramón CSIC ORCID ; Lecerf, D.; Itzin, M.; Gallart Muset, Josep CSIC ORCID; Brown, Dennis CSIC ORCID | Fecha de publicación: | 1998 | Editor: | American Geophysical Union | Citación: | Geophysical Research Letters 25: 4229-4232 (1998) | Resumen: | 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. | URI: | http://hdl.handle.net/10261/170761 | DOI: | 10.1029/1998GL900107 | Identificadores: | doi: 10.1029/1998GL900107 issn: 1944-8007 |
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Carbonell_Geophysical_Research_Letters_25_22_4229.pdf | 864,69 kB | Adobe PDF | Visualizar/Abrir |
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