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Sample MB-231
NavDat sample number 75490 · ANDESITE
Sample
| Sample ID | MB-231 |
|---|
| Rock name | ANDESITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | INTERMEDIATE |
|---|
| Material | IGNEOUS |
|---|
Location
| Latitude | 48.804 |
|---|
| Longitude | -121.75 |
|---|
| State / province | washington |
|---|
| Formation | Andesite of The Portals |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 0.07 |
|
0.063 |
0.077 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 60.66 | | WT% | XRF |
| TIO2 | 0.78 | | WT% | XRF |
| AL2O3 | 17.52 | | WT% | XRF |
| FEOT | 5.48 | | WT% | XRF |
| MNO | 0.11 | | WT% | XRF |
| MGO | 2.94 | | WT% | XRF |
| CAO | 5.6 | | WT% | XRF |
| NA2O | 4.3 | | WT% | XRF |
| K2O | 1.95 | | WT% | XRF |
| P2O5 | 0.25 | | WT% | XRF |
| LOI | 0.69 | | WT% | XRF |
