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NEW DATA ON THE MESOZOIC-CENOZOIC GEOLOGICAL DEVELOPMENT OF THE NORTHERN EDGE OF THE FERGANA BASIN

Fergana Basin, Kurama Paleocene, paleogeography, Paleogene, Cretaceous, Kurnos, Gova, porphyritic, Suzak, Alay, Sumsar, Isfara

Authors

The article presents the results of lithological, petrographic, and tectonic studies of natural outcrops of Cretaceous and Paleogene deposits found along the northern edge of the Fergana Valley. The natural outcrops of the Gova and Kurnos sections in the region were examined in detail, comparing their lithological composition, number of stratigraphic breaks and erosions, thickness, relationships with underlying layers, and position relative to sea level. As a result of Alpine tectogenesis, the Upper Cretaceous and Paleogene deposits of the Kurnos section were uplifted towards the northeast with an amplitude of 720 meters relative to the Gova section, which runs along the northern Fergana deep fault. This led to their displacement over Carboniferous and Permian deposits.