Eastern Sakhalin sedimentary basin 

(Cenozoic) 

(Sea of Okhotsk, unit Czs)

Consists chiefly of a Oligocene to Quaternary sedimentary basin that is up to 8,000 m thick. Seismic-
reflection data suggest late Miocene to Quaternary marine clastic and siliceous sedimentary rocks form 
most of basin. REFERENCES: Kosygin and others, 1985; Baboshina and others, 1984, 1985.