Cut surface of rhyolite, showing the striking banding that results from the flow of viscous molten rock. Yellowstone National Park, Wyoming. 1970.
Dates
Date Taken
1970
Summary
Album caption and index card: Cut surface of rhyolite, showing the striking banding that results from the flowage of viscous molten rock. The dark bands are chiefly concentrations of volcanic glass (also some cavities), and the light bands are concentrations of tiny crystals of feldspar and quartz. Yellowstone National Park, Wyoming. 1970. (Specimen). Published as Figure 30 (lower photo) in U.S. Geological Survey. Bulletin 1347. 1971.
Summary
Album caption and index card: Cut surface of rhyolite, showing the striking banding that results from the flowage of viscous molten rock. The dark bands are chiefly concentrations of volcanic glass (also some cavities), and the light bands are concentrations of tiny crystals of feldspar and quartz. Yellowstone National Park, Wyoming. 1970. (Specimen).
Published as Figure 30 (lower photo) in U.S. Geological Survey. Bulletin 1347. 1971.
Available in the U.S. Geological Survey Denver Library Photographic Collection, Stacy, J.R. Collection.
Rights
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