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Sample MB-22
NavDat sample number 75380 · ANDESITE
Sample
| Sample ID | MB-22 |
|---|
| Rock name | ANDESITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | INTERMEDIATE |
|---|
| Material | IGNEOUS |
|---|
Location
| Latitude | 48.698 |
|---|
| Longitude | -121.721 |
|---|
| State / province | washington |
|---|
| Formation | Andesite of Forest Divide |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 0.455 |
|
0.446 |
0.464 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 61.09 | | WT% | XRF |
| TIO2 | 0.92 | | WT% | XRF |
| AL2O3 | 16.73 | | WT% | XRF |
| FEOT | 5.71 | | WT% | XRF |
| MNO | 0.11 | | WT% | XRF |
| MGO | 2.82 | | WT% | XRF |
| CAO | 5.6 | | WT% | XRF |
| NA2O | 4.23 | | WT% | XRF |
| K2O | 2.12 | | WT% | XRF |
| P2O5 | 0.26 | | WT% | XRF |
| LOI | 0.16 | | WT% | XRF |
