التفاصيل البيبلوغرافية
| العنوان: |
SKS splitting observed at Romanian broad-band seismic network |
| المؤلفون: |
Ivan, Marian1,2 ivam@gg.unibuc.ro, Popa, Mihaela2, Ghica, Daniela2 |
| المصدر: |
Tectonophysics. Dec2008, Vol. 462 Issue 1-4, p89-98. 10p. |
| مصطلحات موضوعية: |
*SEISMIC networks, *SHEAR waves, *ANISOTROPY, *AZIMUTH |
| مصطلحات جغرافية: |
TARA Vrancei (Romania), ROMANIA |
| مستخلص: |
Abstract: Shear-wave splitting results are presented for the broad-band stations of the Romanian seismic network. For stations BUC1 and CRAR (located in Moesian Platform), IAS (in East-European Platform), TIRR and CVD (in Central Dobrudja–Black Sea microplate), TIM and DRGR (in Dacia-Tisza plate, including Apuseni Mts.), BURAR, BZS and GZR (in, or very close to the Carpathian Arc), the fast directions (φ) are around 135°. The mean delay values (δt) of the slow wave are slightly greater for the stations placed in platform areas (δt ~1.5 s) than for the stations situated in the (proximity) of Carpathians (δt ~1.2 s). For the MLR station located in the South-Western part of Vrancea area, at the Carpathian Bend, the fast direction is 48°, similar to VOIR station (located in Southern Carpathians, 70 km West of MLR). At VRI and PLOR, located in the North-Eastern part of Vrancea, the fast axis is oriented approximately on North–South direction, with a possible dependence of the splitting parameters with back azimuth. At least for some stations, the splitting results are not consistent with vertical coherent lithospheric anisotropy. [Copyright &y& Elsevier] |
| قاعدة البيانات: |
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