1. Paleomagnetic and ⁴⁰Ar/³⁹Ar results from the Grant intrusive breccia and comparison to the Permian Downeys Bluff sill--evidence for Permian igneous activity at Hicks Dome, southern Illinois Basin Author/Creator: Reynolds, Richard L. Publication/Creation: Denver, CO : For sale by U.S. Geological Survey, Information Services Resource Type: Book Access & Availability: Loading
2. Petrography and geology of the igneous rocks of the Highwood mountains, Montana Author/Creator: Pirsson, Louis V. 1860-1919, (Louis Valentine), author Publication/Creation: Washington, D.C. : Department of the Interior, United States Geological Survey, 1905 Resource Type: Book Access & Availability: Loading
3. Petrography and geology of the igneous rocks of the Highwood mountains, Montana Author/Creator: Pirsson, Louis V. 1860-1919. (Louis Valentine) Publication/Creation: Washington : Govt. Print. Off, 1905 Resource Type: Book Is Part Of: U.S. Geological Survey bulletin, no. 237-241. Access & Availability: Loading
4. Petrography and petrology of volcanic rocks in the Mount Jefferson area, High Cascade Range, Oregon Author/Creator: Greene, Robert C., author Publication/Creation: [Washington, D.C.] : United States Department of the Interior, Geological Survey, 1968 Resource Type: Book Access & Availability: Loading
5. Petrography and petrology of volcanic rocks in the Mount Jefferson area, High Cascade Range, Oregon Author/Creator: Greene, Robert C. Publication/Creation: Washington : U.S. Govt. Print. Off, 1968 Resource Type: Book Is Part Of: U.S. Geological Survey bulletin, no.1251. Access & Availability: Loading
6. A petrography of Australian igneous rocks Author/Creator: Joplin, Germaine A. Publication/Creation: New York : American Elsevier Pub. Co., 1968 Resource Type: Book Edition: [2d edition]. Access & Availability: Loading
7. Petrography of radioactive tertiary igneous rocks, Front Range mineral belt, Colorado Author/Creator: Wells, John D. 1926- (John David) Publication/Creation: Washington [D.C.] : U.S. G.P.O., 1960 Resource Type: Book Is Part Of: U.S. Geological Survey bulletin, no. 1031-1032. Access & Availability: Loading
8. Petrography of radioactive tertiary igneous rocks, Front Range mineral belt, Colorado Author/Creator: Wells, John David, 1926- author Publication/Creation: [Washington, D.C.] : United States Department of the Interior, Geological Survey, 1960 Resource Type: Book Access & Availability: Loading
9. Petrography of the igneous and metamorphic rocks of India Author/Creator: Chatterjee, S. C. 1905- (Satya Charan) Publication/Creation: Madras : Macmillan Co. of India, 1974 Resource Type: Book Edition: [1st edition]. Access & Availability: Loading
10. Petrology and geochemistry of selected talc bearing ultramafic rocks and adjacent country rocks in north-central Vermont Author/Creator: Chidester, A. H. 1914- (Alfred Herman) Publication/Creation: Washington : U.S. Govt. Print. Off, 1962 Resource Type: Book Is Part Of: U.S. Geological Survey professional paper, no. 345-348.. Access & Availability: Loading