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Sample MB-640
NavDat sample number 75423 · ANDESITE
Sample
| Sample ID | MB-640 |
|---|
| Rock name | ANDESITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | INTERMEDIATE |
|---|
| Material | IGNEOUS |
|---|
Location
| Latitude | 48.781 |
|---|
| Longitude | -121.75 |
|---|
| State / province | washington |
|---|
| Formation | Andesite of Lava Divide |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 0.743 |
|
0.671 |
0.815 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 61.86 | | WT% | XRF |
| TIO2 | 0.84 | | WT% | XRF |
| AL2O3 | 16.91 | | WT% | XRF |
| FEOT | 5.18 | | WT% | XRF |
| MNO | 0.09 | | WT% | XRF |
| MGO | 2.7 | | WT% | XRF |
| CAO | 5.16 | | WT% | XRF |
| NA2O | 4.2 | | WT% | XRF |
| K2O | 2.44 | | WT% | XRF |
| P2O5 | 0.22 | | WT% | XRF |
| LOI | 1.1 | | WT% | XRF |
