TY  - RPRT
TI  - 40Ar-39Ar ages of bentonite beds in the upper part of the Yazoo Formation (Upper Eocene), west-central Mississippi
AU  - J. D. Obradovich
AU  - D. T. Dockery
AU  - C. C. Swisher
PY  - 1993
UR  - https://pubs.usgs.gov/publication/70018289
ID  - 70018289
ER  -