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HB0001. Aids to Identification of Geological Formations, by J. A. Udden. 69 p., 1918.
Keywords: geological methods, formation identification, rocks and minerals, Texas
Excerpted from the CONTENTS
Minerals and rocks
The principal formations in Texas
Tables for identifying minerals and rocks
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.