← Search
Sample 76
NavDat sample number 8565 · ANDESITE
Sample
| Sample ID | 76 |
|---|
| Rock name | ANDESITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | INTERMEDIATE |
|---|
| Material | IGNEOUS |
|---|
Location
| Latitude | 44.3637 |
|---|
| Longitude | -114.777 |
|---|
| 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 | 68.77 | | WT% | XRF |
| AL2O3 | 15.26 | | WT% | XRF |
| TIO2 | 0.05 | | WT% | XRF |
| FEO | 3.55 | | WT% | XRF |
| MNO | 0.04 | | WT% | XRF |
| CAO | 3.92 | | WT% | XRF |
| MGO | 2.59 | | WT% | XRF |
| K2O | 3.43 | | WT% | XRF |
| NA2O | 3.58 | | WT% | XRF |
| P2O5 | 0.28 | | WT% | XRF |
| FE2O3 | 1.08 | | WT% | XRF |
| TOTAL | 102.55 | | WT% | XRF |
