TY  - RPRT
TI  - Officer's cave, a pseudokarst feature in altered tuff and volcanic ash of the John Day formation in eastern Oregon
AU  - Garald G. Parker
AU  - Lynn M. Shown
AU  - Karl W. Ratzlaff
PY  - 1964
DO  - 10.1130/0016-7606(1964)75[393:ocapfi]2.0.co;2
UR  - https://pubs.usgs.gov/publication/70221185
ID  - 70221185
ER  -