Deposits of cryptocrystalline silica in carbonate rocks of Supai Group and Pakoon Limestone, near base of Watahomigi Formation, Kaibab Trail. Grand Canyon National Park. Coconino County, Arizona. No date.
Summary
Album caption and index card: Deposits of cryptocrystalline silica in carbonate rocks of Supai Group and Pakoon Limestone, Grand Canyon region. E, Crust or shells of chertlike, cryptocrystalline silica forming irregular and inconsistent structure pattern in limestone near base of Watahomigi Formation, Kaibab Trail. Scale at top in centimeters. Grand Canyon National Park. Coconino County, Arizona. n.d. (Photo by L.M. Hinchliffe). Published as Figure R1-E in U.S. Geological Survey. Professional Paper 1173. 1982.
Summary
Album caption and index card: Deposits of cryptocrystalline silica in carbonate rocks of Supai Group and Pakoon Limestone, Grand Canyon region. E, Crust or shells of chertlike, cryptocrystalline silica forming irregular and inconsistent structure pattern in limestone near base of Watahomigi Formation, Kaibab Trail. Scale at top in centimeters. Grand Canyon National Park. Coconino County, Arizona. n.d. (Photo by L.M. Hinchliffe).
Published as Figure R1-E in U.S. Geological Survey. Professional Paper 1173. 1982.
Available in the U.S. Geological Survey, Denver Library Photographic Collection, McKee, E.D. Collection.
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