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Sample MB-88
NavDat sample number 75279 · ANDESITE
Sample
| Sample ID | MB-88 |
|---|
| Rock name | ANDESITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | INTERMEDIATE |
|---|
| Material | IGNEOUS |
|---|
Location
| Latitude | 48.821 |
|---|
| Longitude | -121.737 |
|---|
| State / province | washington |
|---|
| Formation | dikes and lava-flow remnants along Ptarmigan Ridge; |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 0.306 |
|
0.293 |
0.319 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 60.98 | | WT% | XRF |
| TIO2 | 0.81 | | WT% | XRF |
| AL2O3 | 17.44 | | WT% | XRF |
| FEOT | 5.23 | | WT% | XRF |
| MNO | 0.09 | | WT% | XRF |
| MGO | 2.98 | | WT% | XRF |
| CAO | 5.75 | | WT% | XRF |
| NA2O | 4.14 | | WT% | XRF |
| K2O | 1.88 | | WT% | XRF |
| P2O5 | 0.31 | | WT% | XRF |
| LOI | 1.41 | | WT% | XRF |
