TY  - RPRT
TI  - The mesoproterozoic Beaverhead impact structure and its tectonic setting, Montana-Idaho: 40Ar/39 and U-Pb isotopic constraints
AU  - K.S. Kellogg
AU  - L.W. Snee
AU  - D.M. Unruh
PY  - 2003
UR  - https://pubs.usgs.gov/publication/70024931
ID  - 70024931
ER  -