← Search
Sample 797-19B
NavDat sample number 13850
Sample
| Sample ID | 797-19B |
|---|
| Rock type | VOLCANIC |
|---|
| Material | IGNEOUS |
|---|
Location
| Latitude | 45.7183 |
|---|
| Longitude | -114.467 |
|---|
| State / province | Montana |
|---|
| Volcanic field | Challis epizonal plutonics and volcanics |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 46.3 |
|
45.1 |
47.5 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| RB | 232.7 | | PPM | XRF |
| SR | 61.51 | | PPM | XRF |
| SR87_SR86 | 0.71574 | | | TIMS |
| D18O | 8.1 | | PERMILL | MS |
References
- Criss, Robert E; Fleck, Robert J (1987) Petrogenesis, geochronology, and hydrothermal systems of the northern Idaho Batholith and adjacent areas based on (super 18?O/ (super 16?O, D/H, (super 87?Sr/ (super 86?Sr, K-Ar, and (super 40?Ar/ (super 39?Ar studies. U. S. Geological Survey Professional Paper, Report: P 1436, pp.95-137, 1987
