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Sample 132.9
NavDat sample number 19724 · ANDESITE
Sample
| Sample ID | 132.9 |
|---|
| Rock name | ANDESITE |
|---|
| Rock type | PLUTONIC |
|---|
| Composition | INTERMEDIATE |
|---|
| Material | IGNEOUS |
|---|
Location
| Latitude | 46.39 |
|---|
| Longitude | -115.2 |
|---|
| Location | Lochsa River / Route 12 section; sample name is its milepost location |
|---|
| State / province | Idaho |
|---|
| Volcanic field | Idaho batholith, Bitterroot lobe |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 77 |
|
70 |
85 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 58.33 | | WT% | XRF |
| TIO2 | 0.82 | | WT% | XRF |
| AL2O3 | 15.94 | | WT% | XRF |
| FE2O3 | 3.47 | | WT% | XRF |
| FEO | 3.98 | | WT% | XRF |
| MNO | 0.13 | | WT% | XRF |
| MGO | 5.49 | | WT% | XRF |
| CAO | 7.17 | | WT% | XRF |
| NA2O | 2.25 | | WT% | XRF |
| K2O | 2.18 | | WT% | XRF |
| P2O5 | 0.247 | | WT% | XRF |
