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Sample 81
NavDat sample number 8568 · ANDESITE
Sample
| Sample ID | 81 |
|---|
| Rock name | ANDESITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | INTERMEDIATE |
|---|
| Material | IGNEOUS |
|---|
Location
| Latitude | 44.3724 |
|---|
| Longitude | -114.776 |
|---|
| Location | Challis volcanic field |
|---|
| State / province | Idaho |
|---|
| Volcanic field | Andesites of Bonanza Peak |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 46 |
|
43 |
49 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 68.82 | | WT% | XRF |
| AL2O3 | 16.56 | | WT% | XRF |
| TIO2 | 0.74 | | WT% | XRF |
| FEO | 3.01 | | WT% | XRF |
| MNO | 0.02 | | WT% | XRF |
| CAO | 2.57 | | WT% | XRF |
| MGO | 0.65 | | WT% | XRF |
| K2O | 2.89 | | WT% | XRF |
| NA2O | 3.49 | | WT% | XRF |
| P2O5 | 0.21 | | WT% | XRF |
| FE2O3 | 2.24 | | WT% | XRF |
| TOTAL | 101.2 | | WT% | XRF |
