1. Stratigraphy of the layered gabbroic Dufek intrusion, Antarctica : description of newly named units in a differentiated stratiform mafic intrusion in the northern Pensacola Mountains of Antarctica Author/Creator: Ford, Arthur B. 1932- (Arthur Barnes), author Publication/Creation: [Washington, D.C.] : United States Department of the Interior, Geological Survey, 1976 Resource Type: Book Access & Availability: Loading