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Sample MB-250
NavDat sample number 75201 · ANDESITE
Sample
| Sample ID | MB-250 |
|---|
| Rock name | ANDESITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | INTERMEDIATE |
|---|
| Material | IGNEOUS |
|---|
Location
| Latitude | 48.768 |
|---|
| Longitude | -121.918 |
|---|
| State / province | washington |
|---|
| Formation | Black Buttes stratocone |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 0.33 |
|
0.288 |
0.374 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 59.68 | | WT% | XRF |
| TIO2 | 1.05 | | WT% | XRF |
| AL2O3 | 17.81 | | WT% | XRF |
| FEOT | 6.19 | | WT% | XRF |
| MNO | 0.15 | | WT% | XRF |
| MGO | 2.38 | | WT% | XRF |
| CAO | 5.2 | | WT% | XRF |
| NA2O | 5.44 | | WT% | XRF |
| K2O | 1.33 | | WT% | XRF |
| P2O5 | 0.37 | | WT% | XRF |
| LOI | 0.17 | | WT% | XRF |
