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Publication Extents

Not all publications have extents, not all extents are completely accurate
Geologic history of the Yosemite Valley
Francois E. Matthes
1930, Professional Paper 160
The problem of the origin of the Yosemite Valley inherently demands a solution in quantitative terms. Its essence is, To what extent is the valley a product of glacial action, to what extent a product of stream erosion? The principal result of the investigations upon which this report is based...
The flora of the Denver and associated formations of Colorado
Frank Hall Knowlton
Edward Wilber Berry, editor(s)
1930, Professional Paper 155
In the introduction to my report on the Laramie flora of the Denver Basin I stated that that was the first of what was proposed to be a series of papers dealing with the stratigraphy and paleobotany of certain Upper Cretaceous and lower Tertiary plant-bearing formtions of the Rocky Mountain...
Shorter contributions to general geology, 1929
Water Resources Division, U.S. Geological Survey
1930, Professional Paper 158
Thin beds that consist almost wholly of euhedral analcite crystals occur at five or more horizons in the upper half of the Green River formation of Utah and Colorado, a series of Eocene lake beds that contain large deposits of oil shale. Most of these beds contain also minute crystals...