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Collection: Books and Periodicals
The Tertiary Gravels of the Sierra Nevada of California by Waldemar Lindgren (1911) (301 pages)

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Page: of 301

U. S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 73 PLATE XXIV
A. RHYOLITIC TUFF RESTING ON BEDROCK OF DARDANELLES CHANNEL,
FOREST HILL, PLACER COUNTY.
In the background is seen a later channel filled with andesitic tuff in a trough eroded in
rhyolite. The same channel is shown in the background of PlateV,A(p. ). Photograph by J. M. Boutwell. See page 150.
B. UPPER BENCH GRAVEL AT MOODY MINE, GOLD RUN, PLACER COUNTY.
Showing cross-bedding. Photograph by Waldemar Lindgren. See page 145.