31. Geology of Precambrian rocks, Idaho Springs district, Colorado Author/Creator: Moench, Robert Hadley, 1926- author Publication/Creation: Washington, D.C. : United States Department of the Interior, Geological Survey, 1964 Resource Type: Book Access & Availability: Loading
32. Geology of the Negaunee quadrangle, Marquette County, Michigan Author/Creator: Puffett, Willard P. 1922- (Willard Penry), author Publication/Creation: Washington : United States Department of the Interior, Geological Survey, 1974 Resource Type: Book Access & Availability: Loading
33. Geology of the Precambrian W (lower Precambrian) rocks in western Gogebic County, Michigan Author/Creator: Schmidt, Robert Gordon, 1924- Publication/Creation: Washington : U.S. Govt. Print. Off., 1976 Resource Type: Book Is Part Of: U.S. Geological Survey bulletin, no. 1406-1413. Access & Availability: Loading
34. Geology of the Precambrian W (lower Precambrian) rocks in western Gogebic County, Michigan Author/Creator: Schmidt, Robert Gordon, 1924- author Publication/Creation: [Washington, D.C.] : United States Department of the Interior, Geological Survey, 1976 Resource Type: Book Access & Availability: Loading
35. Geophysically inferred structural and lithologic map of the precambrian basement in the Joplin 1⁰ x 2⁰ quadrangle, Kansas and Missouri Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, CO : For sale by Map Distribution Resource Type: Map Access & Availability: Loading
36. Gold Deposits Related to Greenstone Belts in Brazil--Deposit Modeling Workshop : Part A--Excursions Author/Creator: Gold Deposits Related to Greenstone Belts in Brazil--Deposit Modeling Workshop Belo Horizonte, Brazil) (1986 Publication/Creation: Denver, Co. : U.S. Geological Survey, [1991] Resource Type: Book Access & Availability: Loading
37. Gold Deposits Related to Greenstone Belts in Brazil--Deposit Modeling Workshop : Part A--Excursions Author/Creator: Gold Deposits Related to Greenstone Belts in Brazil--Deposit Modeling Workshop Belo Horizonte, Brazil), (1986 : author. author Publication/Creation: [Reston, Va.] : U.S. Department of the Interior, U.S. Geological Survey, 1991 Resource Type: Book Access & Availability: Loading
38. Introduction to correlation of Precambrian rock sequences Author/Creator: Harrison, Jack Edward, 1924- author Publication/Creation: Washington : United States Department of the Interior, Geological Survey, 1984 Resource Type: Book Access & Availability: Loading
39. Intrusive rocks northeast of Steamboat Springs, Park Range, Colorado Author/Creator: Snyder, George L. 1927- (George Leonard), author Publication/Creation: Washington : United States Department of the Interior, Geological Survey, 1978 Resource Type: Book Access & Availability: Loading
40. Las Animas Formation (upper Precambrian) in the subsurface of southeastern Colorado Author/Creator: Tweto, Ogden, 1912-1983 Publication/Creation: [Washington, D.C.] : U.S. Dept. of the Interior, U.S. Geological Survey, 1983 Resource Type: Book Access & Availability: Loading