Feature Name (see definition): Bentley Subglacial Trench

Feature Class (see definition): Valley

Country Code (see definition): AQ (Antarctica)

Feature ID (see definition): 1252

Primary Latitude in degrees, minutes, and seconds (see definition): 80° 00' 00" S

Primary Longitude in degrees, minutes, and seconds (see definition): 105° 00' 00" W

Primary Latitude in decimal degrees (see definition): -80

Primary Longitude in decimal degrees (see definition): -105

Elevation (see definition): No data

Decision Year (see definition): 01/01/1961

Description (see definition): A major subglacial trench of West Antarctica which lies S of Byrd Subglacial Basin and is separated from it by a ridge except for a juncture of the two features near their E termination. From that juncture near Ellsworth Mountains, the trench extends WSW along the N side of Ellsworth Subglacial Highlands to c. 81S, 120W. A maximum depth of -2,540 m is reported in the W part of the trench. Named by Advisory Committee on Antarctic Names (US-ACAN) in 1961 for Charles R. Bentley, chief traverse seismologist at Byrd Station, 1957-59; leader of the 1957-58 seismic traverse that determined the existence of this trench and recorded its depth. This amended description follows further subglacial delineation by the SPRI-NSF-TUD airborne radio echo sounding program, 1967-79.

Date Created (see definition): No data

Date Edited (see definition): No data