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BL3231D. The Geology of Hemphill County, Texas, by L. C. Reed and O. M. Longnecker, Jr. 98 p., 9 figs., 1 map, 1932. Downloadable PDF.
Foreword by Charles Laurence Baker
Nature and importance of the work
Permian (?) Red Beds
Lower Pliocene (Hemphill beds)
Undifferentiated Lower Pliocene
Lower (?) Pleistocene
Pleistocene and Recent
Location of samples for mechanical measurements
Descriptions of sections
Identifications of faunas and description of fossil localities
Age determinations from the fauna
Type of sediments in Lower Pliocene beds
Sources and modes of deposition of the Lower Pliocene deposits
Geologic history of the area
The building of the High Plains
The history of the Canadian River and its terraces in Hemphill County
Structure and subsurface correlations
Reed, L. C., and Longnecker, O. M., Jr., 1932, The Geology of Hemphill County, Texas: The University of Texas, Austin, Bulletin 3231, 98 p.