Joints, fissures, and voids in rhyolite welded ash-flow tuff at Teton damsite, Idaho
Open-File Report
77-211
By: Harold J. Prostka
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Abstract
Several kinds of joints, fissures, and voids are present in densely welded rhyolite ash-flow tuff at Teton damsite. Older fissures and voids probably were formed in the ash-flow sheet during secondary flowage, which probably was caused by differential compaction or settling over irregular topography. The younger, more abundant fissures are mostly steep cooling joints that probably have been opened farther by horizontal tectonic extension and gravitational creep, perhaps aided by lateral stress relief.
Suggested Citation
Prostka, H.J., 1977, Joints, fissures, and voids in rhyolite welded ash-flow tuff at Teton damsite, Idaho: U.S. Geological Survey Open-File Report 77-211, 14 leaves :ill. ;27 cm.; (15 p. - PGS), https://doi.org/10.3133/ofr77211.
ISSN: 2331-1258 (online)
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Joints, fissures, and voids in rhyolite welded ash-flow tuff at Teton damsite, Idaho |
| Series title | Open-File Report |
| Series number | 77-211 |
| DOI | 10.3133/ofr77211 |
| Year Published | 1977 |
| Language | ENGLISH |
| Publisher | U.S. Geological Survey, |
| Description | 14 leaves :ill. ;27 cm.; (15 p. - PGS) |