1. Bedrock geology of the Vipond Park 15-minute, Stine Mountain 7-1/2-minute, and Maurice Mountain 7-1/2-minute quadrangles, Pioneer Mountains, Beaverhead County, Montana Author/Creator: Zen, E-an, 1928- Publication/Creation: [Reston, Va.] : U.S. Dept. of the Interior, Geological Survey ; Denver, CO : For sale by the Books and Open-File Reports Section, 1988 Format: Book Access & Availability: Loading
2. The Taconide zone and the Taconic orogeny in the western part of the northern Appalachian orogen Author/Creator: Zen, E-an, 1928- Publication/Creation: [Boulder, Colo.] : Geological Society of America, [1972] Format: Book Is Part Of: Bound with: QE1 .G4 S7 NO.134-138 ; Clay water diagenesis during burial: how mud becomes gneiss Access & Availability: Loading
3. Time and space relationships of the Taconic allochthon and autochthon Author/Creator: Zen, E-an, 1928- Publication/Creation: New York : [Geological Society of America], 1967 Format: Book Is Part Of: Bound with: QE1 .G4 S7 NO.95-100 ; Stratigraphy and paleoecology of the Saluda Formation (Cincinnatian) in Indiana, Ohio, and Kentucky. Access & Availability: Loading
4. Construction of pressure-temperature diagrams for multicomponent systems after the method of Schreinemakers : a geometric approach Author/Creator: Zen, E-an, 1928- Publication/Creation: Washington : U.S. Govt. Print. Office, 1966 Format: Book Is Part Of: U.S. Geological Survey bulletin, no. 1225-1229. Access & Availability: Loading
5. Taconic stratigraphic names : definitions and synonymies Author/Creator: Zen, E-an, 1928- Publication/Creation: [Washington, D.C.] : United States Department of the Interior, Geological Survey, 1964 Format: Book Access & Availability: Loading
6. Taconic stratigraphic names : definitions and synonymies Author/Creator: Zen, E-an, 1928- Publication/Creation: Washington : U.S. Govt. Print. Off, 1964 Format: Book Is Part Of: U.S. Geological Survey bulletin, no. 1173-1176. Access & Availability: Loading