. Contributions to the geography of the United States, 1923-1924. Geology; Mines and mineral resources. U. S. GEOLOGICAL SURVEY BULLETIN 760 PLATE IV. A. DRIP FURROW BELOW PEDESTAL ROCK. Surface of the ground covered with scales of sandstone from the Moenkopi formation. The pedestal has vertical joint cracks widened by solution of veins of gypsum and is meu-ked by white patches of salts derived from its Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not
. Contributions to the geography of the United States, 1923-1924. Geology; Mines and mineral resources. U. S. GEOLOGICAL SURVEY BULLETIN 760 PLATE IV. A. DRIP FURROW BELOW PEDESTAL ROCK. Surface of the ground covered with scales of sandstone from the Moenkopi formation. The pedestal has vertical joint cracks widened by solution of veins of gypsum and is meu-ked by white patches of salts derived from its Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Campbell, Marius R. (Marius Robinson), 1858-1940; Geological Survey (U. S. ). Washington [D. C. ] : U. S. Govt. Print. Off.
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectgeology, booksubjectm
