ГИГАНТСКАЯ КВАЗИКОЛЬЦЕВАЯ МАНТИЙНАЯ СТРУКТУРА ПОДВОСТОЧНЫМ СРЕДИЗЕМНОМОРЬЕМ: НАЛИЗ НОВЫХ ДАННЫХ СЕЙСМОТОМОГРАФИИ, МАГНИТНОГО ПОЛЯ, ПАЛЕОБИОГЕОГРАФИИ ИКОМПЛЕКСНАЯ ИНТЕРПРЕТАЦИЯ ПОЛУЧЕННЫХ РЕЗУЛЬТАТОВ

In the presented article, aquantitative reinterpretation of the residual satellite gravity anomaly is carried out. Additional necessary confirmation is provided by the distribution of anomalies in the regional magnetic field ΔZ, reduced to aheight of 2.5 km above sea level. Based on the analysis of detailed paleomagnetic studies, the average rotation rate of the surface projection of the deep structure over the past 70 million years is estimated at about 18 mm/year. The authors constructed apaleobiogeographic map showing the counterclockwise displacement of the typical Ethiopian fauna to the northwest. The influence of the rotating deep structure on stress in the overlying blocks of the Earth’s crust and lithosphere before the catastrophic earthquakes with magnitudes M=7.9 and M=7.8 that occurred on 06.02.2023 in Turkey is shown. The synthesis of seismic tomography profiles made it possible to construct aseismotomographic scheme of the location of the deep structure. This scheme agrees with the analysis of satellite gravity and marine/terrestrial gravity studies, geoid anomalies, magnetic anomaly distributions, paleomagnetic data, regional GPS vector directions, seismological and tectonic-structural, and mineralogical-petrological data. The integrative combination of all these factors is indisputable to confirm the existence of an anomalous deep rotating structure beneath the Eastern Mediterranean and adjacent regions.