Инд. авторы:	Medved I., Polat G., Koulakov I.
Заглавие:	Crustal Structure of the Eastern Anatolia Region (Turkey) Based on Seismic Tomography
Библ. ссылка:	Medved I., Polat G., Koulakov I. Crustal Structure of the Eastern Anatolia Region (Turkey) Based on Seismic Tomography // GEOSCIENCES. - 2021. - Vol.11. - Iss. 2. - Art.91.
Внешние системы:	DOI: 10.3390/geosciences11020091; РИНЦ: 46750102; WoS: 000622559400001;
Реферат:	eng: Here, we investigated the crustal structure beneath eastern Anatolia, an area of high seismicity and critical significance for earthquake hazards in Turkey. The study was based on the local tomography method using data from earthquakes that occurred in the study area provided by the Turkiye Cumhuriyeti Ministry of Interior Disaster and Emergency Management Directorate Earthquake Department Directorate of Turkey. The dataset used for tomography included the travel times of 54,713 P-waves and 38,863 S-waves from 6355 seismic events. The distributions of the resulting seismic velocities (Vp, Vs) down to a depth of 60 km demonstrate significant anomalies associated with the major geologic and tectonic features of the region. The Arabian plate was revealed as a high-velocity anomaly, and the low-velocity patterns north of the Bitlis suture are mostly associated with eastern Anatolia. The upper crust of eastern Anatolia was associated with a similar to 10 km thick high-velocity anomaly; the lower crust is revealed as a wedge-shaped low-velocity anomaly. This kind of seismic structure under eastern Anatolia corresponded to the hypothesized existence of a lithospheric window beneath this collision zone, through which hot material of the asthenosphere rises. Thus, the presented results help to clarify the deep structure under eastern Anatolia.
Ключевые слова:	collision zone; Arabian plate; seismic tomography; Eastern Anatolia; crustal structure;
Издано:	2021
Физ. характеристика:	91
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