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Sample MB-189
NavDat sample number 75623
Sample
| Sample ID | MB-189 |
|---|
| Rock type | VOLCANIC |
|---|
| Material | IGNEOUS |
|---|
| Comment | intracaldera rhyodacite ignimbrite |
|---|
Location
| Latitude | 48.843 |
|---|
| Longitude | -121.696 |
|---|
| 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 | 60.2 | | WT% | XRF |
| TIO2 | 0.9 | | WT% | XRF |
| AL2O3 | 17.61 | | WT% | XRF |
| FEOT | 6.25 | | WT% | XRF |
| MNO | 0.11 | | WT% | XRF |
| MGO | 2.66 | | WT% | XRF |
| CAO | 6.04 | | WT% | XRF |
| NA2O | 3.78 | | WT% | XRF |
| K2O | 1.78 | | WT% | XRF |
| P2O5 | 0.25 | | WT% | XRF |
| LOI | 2.56 | | WT% | XRF |
