PETROLOGY OF THE HUBERT MILLER SEAMOUNT, MARIE BYRD SEAMOUNTS PROVINCE, WEST ANTARCTIC, SOUTHERN OCEAN

Abstract

The Marie Byrd Seamounts are located at the foot of the continental slope of Marie Byrd Land (MBL) in the Amundsen Sea, in the Pacific sector of the Southern Ocean. The basement of the continental slope in this region is broken, but its surface is smoothed by a thick sedimentary cover. In the lower part of the slope, the cover resembles an accumulative apron. The chain of the Marie Byrd Seamounts extends nearly in a latitudinal direction within 69°–70 ° N, where the apron enveloping the base of the seamounts passes into a deepwater abyssal plain of the Amundsen Sea floor.