Officer's cave, a pseudokarst feature in altered tuff and volcanic ash of the John Day formation in eastern Oregon
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Abstract
Officer's Cave is the uppermost of four rapidly eroding cave levels constituting a cavern complex about 700 feet long developed chiefly in clay and silt. Its outer room is 35 feet by 43.5 feet by 100 feet and slopes about 45° east into the western end of a narrow linear hill called Officer's Cave Ridge. Dry valleys, blind valleys, hanging valleys, sinkholes, pipes, caves, and natural bridges are abundant. These, together with subterranean drainage, give the area a karstlike development. For such terrains the term "pseudokarst" is applied. These pseudokarsts are the product of piping and are fairly widespread over the world's drylands.
Suggested Citation
Parker, G., Shown, L.M., Ratzlaff, K.W., 1964, Officer's cave, a pseudokarst feature in altered tuff and volcanic ash of the John Day formation in eastern Oregon: Geological Society of America Bulletin, v. 75, no. 5, p. 393-402, https://doi.org/10.1130/0016-7606(1964)75[393:OCAPFI]2.0.CO;2.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Officer's cave, a pseudokarst feature in altered tuff and volcanic ash of the John Day formation in eastern Oregon |
| Series title | Geological Society of America Bulletin |
| DOI | 10.1130/0016-7606(1964)75[393:OCAPFI]2.0.CO;2 |
| Volume | 75 |
| Issue | 5 |
| Year Published | 1964 |
| Language | English |
| Publisher | Geological Society of America |
| Description | 10 p. |
| First page | 393 |
| Last page | 402 |
| Country | United States |
| State | Oregon |
| Other Geospatial | eastern Oregon |