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
By: Garald G. Parker, Lynn M. Shown, and Karl W. Ratzlaff
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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.
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 |