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HB0001D. Aids to Identification of Geological Formations, by J. A. Udden. 69 p., 1918. Downloadable PDF.
To purchase this publication in book format, please order HB0001.
Excerpted from the CONTENTS
Minerals and rocks
The principal formations in Texas
Tables for identifying minerals and rocks
Keywords: geological methods, formation identification
Udden, J. A., 1918, Aids to Identification of Geological Formations: The University of Texas at Austin, Bureau of Economic Geology and Technology, Handbook 1, 69 p.