Results of Ultra-High-Resolution Seismoacoustic Survey Offshore Taman Bay in the Area of the Ancient City of Phanagoria

— The first data on the eastern part of Taman Bay are based on an ultra-high-resolution seismic survey. The seismoacoustic complexes of a profile are compared with Novochernomorsk and Karangat sediments to Lower Chauda sediments of the Quaternary age. The fold structure of Quaternary sediments of this area is confirmed. An analysis of the bedding of the newest marine sediments of the bottom and the submergence of the ancient city of Phanagoria in the beginning of the 1st century AD indicate the Late Holocene tectonic activity of the Taman Bay depression. Two profile areas exhibit signal coherence gaps interpreted as areas of gas accumulations. The gas emissions are probably morphologically related to a wing of the adjacent Akhtaniz Anticline and are interpreted as a result of clay diapirism of the Maikop Group.