Outcrop of glassy rhyolite lava along the road between Canyon Village and Norris Junction. Yellowstone National Park, Wyoming. 1970.
Dates
Date Taken
1970
Summary
Album caption and index card: Outcrop of glassy rhyolite lava along the road between Canyon Village and Norris Junction. The conspicuous lines in the face of the rock outline different layers produced by lava flowage. Glassy fracture shown and light-colored crystals are quartz (blocky) and feldspar (tabular). The feldspar crystals are aligned parallel to the direction of the flow. Yellowstone National Park, Wyoming. 1970. Published as Figure 32-B in U.S. Geological Survey. Bulletin 1347. 1971.
Summary
Album caption and index card: Outcrop of glassy rhyolite lava along the road between Canyon Village and Norris Junction. The conspicuous lines in the face of the rock outline different layers produced by lava flowage. Glassy fracture shown and light-colored crystals are quartz (blocky) and feldspar (tabular). The feldspar crystals are aligned parallel to the direction of the flow. Yellowstone National Park, Wyoming. 1970.
Published as Figure 32-B 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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