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Sample 81MT204A
NavDat sample number 13787 · GRANITE
Sample
| Sample ID | 81MT204A |
|---|
| Rock name | GRANITE |
|---|
| Rock type | PLUTONIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
Location
| Latitude | 46.0169 |
|---|
| Longitude | -114.477 |
|---|
| Location | IDAHO COUNTY |
|---|
| State / province | Montana |
|---|
| Volcanic field | IDAHO BATHOLITH, Bitterroot lobe |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 77 |
|
60 |
95 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 73.6 | | WT% | XRF |
| AL2O3 | 14.9 | | WT% | XRF |
| MGO | 0.26 | | WT% | XRF |
| CAO | 1.68 | | WT% | XRF |
| NA2O | 3.85 | | WT% | XRF |
| K2O | 4.34 | | WT% | XRF |
| TIO2 | 0.03 | | WT% | XRF |
| P2O5 | -0.05 | | WT% | XRF |
| MNO | -0.02 | | WT% | XRF |
| FE2O3T | 0.29 | | WT% | XRF |
| TOTAL | 98.88 | | WT% | XRF |
