Dubinin Trough (67°10′S 80°30′E) is an undersea trough named for Soviet Captain A.I. Dubinin, leader of the 1957 Antarctic expedition. The name was proposed by Dr. G. Agapova of the Geological Institute of the Russian Academy of Sciences, and was approved by the Advisory Committee for Undersea Features in August 1985.
Map of Dubinin Trough, Antarctica
References
Dubinin Trough Wikipedia(Text) CC BY-SA