Reference 1678
Simonsen, Steen W (1997)
| Authors | Simonsen, Steen W |
|---|---|
| Year | 1997 |
| GeoRef | 2000-064719 |
| Keywords | absolute age; Ar/Ar; Bitterroot Complex; Cenozoic; Challis Volcanics;dates; dike swarms; dikes; Eocene; extension; Idaho; Idaho Batholith;Idaho porphyry belt; Idaho-Montana extensional belt; intrusions;magmatism; Montana; Paleogene; Salmon River Arch; Tertiary; UnitedStates |