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Sample MB-63
NavDat sample number 75494 · ANDESITE
Sample
| Sample ID | MB-63 |
|---|
| Rock name | ANDESITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | INTERMEDIATE |
|---|
| Material | IGNEOUS |
|---|
Location
| Latitude | 48.74 |
|---|
| Longitude | -121.893 |
|---|
| State / province | washington |
|---|
| Formation | Stacks of lavas and breccias extend radially to make up Seward Peak, Lee Promontory |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 0.296 |
|
0.276 |
0.316 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 55.66 | | WT% | XRF |
| TIO2 | 0.91 | | WT% | XRF |
| AL2O3 | 18.79 | | WT% | XRF |
| FEOT | 6.61 | | WT% | XRF |
| MNO | 0.11 | | WT% | XRF |
| MGO | 4.18 | | WT% | XRF |
| CAO | 8.3 | | WT% | XRF |
| NA2O | 3.78 | | WT% | XRF |
| K2O | 1.06 | | WT% | XRF |
| P2O5 | 0.2 | | WT% | XRF |
| LOI | 0.66 | | WT% | XRF |
