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Sample MB-289
NavDat sample number 75353 · ANDESITE
Sample
| Sample ID | MB-289 |
|---|
| Rock name | ANDESITE |
|---|
| Rock type | PLUTONIC |
|---|
| Composition | INTERMEDIATE |
|---|
| Material | IGNEOUS |
|---|
| Comment | intracaldera dike |
|---|
Location
| Latitude | 48.821 |
|---|
| Longitude | -121.726 |
|---|
| 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 | 58.02 | | WT% | XRF |
| TIO2 | 0.94 | | WT% | XRF |
| AL2O3 | 18.56 | | WT% | XRF |
| FEOT | 6.76 | | WT% | XRF |
| MNO | 0.12 | | WT% | XRF |
| MGO | 3.17 | | WT% | XRF |
| CAO | 6.91 | | WT% | XRF |
| NA2O | 3.87 | | WT% | XRF |
| K2O | 0.97 | | WT% | XRF |
| P2O5 | 0.28 | | WT% | XRF |
| LOI | 5.38 | | WT% | XRF |
