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Sample MB-469
NavDat sample number 75367 · ANDESITE
Sample
| Sample ID | MB-469 |
|---|
| Rock name | ANDESITE |
|---|
| Rock type | PLUTONIC |
|---|
| Composition | INTERMEDIATE |
|---|
| Material | IGNEOUS |
|---|
| Comment | intracaldera dike |
|---|
Location
| Latitude | 48.823 |
|---|
| Longitude | -121.763 |
|---|
| State / province | washington |
|---|
| Formation | Intracaldera dikes of intermediate composition |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 0.85 |
|
0.6 |
1.1 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 65.68 | | WT% | XRF |
| TIO2 | 0.68 | | WT% | XRF |
| AL2O3 | 16.13 | | WT% | XRF |
| FEOT | 3.89 | | WT% | XRF |
| MNO | 0.07 | | WT% | XRF |
| MGO | 1.78 | | WT% | XRF |
| CAO | 3.64 | | WT% | XRF |
| NA2O | 4.31 | | WT% | XRF |
| K2O | 3.21 | | WT% | XRF |
| P2O5 | 0.21 | | WT% | XRF |
| LOI | 2.05 | | WT% | XRF |
