New Siberian (Novosibirsky) sedimentary basin 

(Late Cretaceous? to Quaternary) 

(East Siberian Sea, unit CzKsv)

Consists chiefly of Late Cretaceous to Quaternary deltaic and shelf sedimentary rocks. Unit unconformably 
overlies presumed Paleozoic and Mesozoic basement which contains seismic reflectors to 10 km depth. 
Seismic-reflection data indicate basin depth of about 3 km. A graben occurs along southern edge of the 
basin and is filled with 4.5 to 5.0 km of synrift sedimentary rocks. The southern Novosibirsky basin is 
separated from the Blagoveshchensk basin by a fault zone. REFERENCES: Kogan, 1981; Volk and 
Gaponenko, 1981; Kos'ko, 1984, 1988; Volk and others, 1984; Fujita and Cook, 1990.