1. Stratigraphic nomenclature of the Newark Supergroup of eastern North America Author/Creator: Luttrell, Gwendolyn Lewise Werth, 1927- Publication/Creation: Washington : U.S. G.P.O. ; Denver, CO (Federal Center, Box 25425, Denver 80225) : For sale by the Books and Open-File Reports Section, U.S. Geological Survey, 1990 Resource Type: Book Access & Availability: Loading
2. 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) Publication/Creation: Washington : U.S. Govt. Print. Off., 1976 Resource Type: Book Is Part Of: U.S. Geological Survey bulletin, no. 1402-1405. Access & Availability: Loading