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Sample MB-657b
NavDat sample number 75162 · ANDESITE
Sample
| Sample ID | MB-657b |
|---|
| Rock name | ANDESITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | INTERMEDIATE |
|---|
| Material | IGNEOUS |
|---|
Location
| Latitude | 48.893 |
|---|
| Longitude | -121.707 |
|---|
| State / province | washington |
|---|
| Formation | Andesite of Anderson Creek |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 1.35 |
|
0.9 |
1.8 |
Middle Pleistocene |
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 58.55 | | WT% | XRF |
| TIO2 | 0.98 | | WT% | XRF |
| AL2O3 | 17.95 | | WT% | XRF |
| FEOT | 6.25 | | WT% | XRF |
| MNO | 0.11 | | WT% | XRF |
| MGO | 3.3 | | WT% | XRF |
| CAO | 6.65 | | WT% | XRF |
| NA2O | 4.05 | | WT% | XRF |
| K2O | 1.46 | | WT% | XRF |
| P2O5 | 0.3 | | WT% | XRF |
| LOI | 0.4 | | WT% | XRF |
