← Search
Sample MB-321
NavDat sample number 75624
Sample
| Sample ID | MB-321 |
|---|
| Rock type | VOLCANIC |
|---|
| Material | IGNEOUS |
|---|
| Comment | intracaldera rhyodacite ignimbrite |
|---|
Location
| Latitude | 48.833 |
|---|
| Longitude | -121.692 |
|---|
| State / province | washington |
|---|
| Formation | Ignimbrite of Swift Creek |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 1.149 |
|
1.139 |
1.159 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 71.02 | | WT% | XRF |
| TIO2 | 0.42 | | WT% | XRF |
| AL2O3 | 15.08 | | WT% | XRF |
| FEOT | 2.6 | | WT% | XRF |
| MNO | 0.07 | | WT% | XRF |
| MGO | 1.25 | | WT% | XRF |
| CAO | 4.15 | | WT% | XRF |
| NA2O | 2.3 | | WT% | XRF |
| K2O | 2.57 | | WT% | XRF |
| P2O5 | 0.16 | | WT% | XRF |
| LOI | 10.8 | | WT% | XRF |
