Cenozoic Clinoform Complexes and the Geological History of the North Chukchi Basin (Chuckchi Sea, Arctic)

Abstract

A new seismostratigraphic model was developed for the sedimentary cover of the North-Chukchi Basin and the main paleogeographic events that occurred within this territory were interpreted. The post-rift sedimentary history of the North-Chukchi basin can be divided into three stages: the late Cretaceous–Paleocene with strong progradation of shelf sedimentary packages to the north, the middle Eocene–Miocene with gradual differently oriented filling of the basin from different sides, and the late Miocene until the present. At the last stage, the shelf outlines were formed along with slow aggradation of the clinoform complex with an insignificant northern deviation.