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Sample EM-251
NavDat sample number 55191 · RHYOLITE
Sample
| Sample ID | EM-251 |
|---|
| Rock name | RHYOLITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
Location
| Latitude | 44.3994 |
|---|
| Longitude | -122.167 |
|---|
| State / province | Oregon |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 21 |
|
17 |
25 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 71.31 | | WT% | XRF |
| TIO2 | 0.43 | | WT% | XRF |
| AL2O3 | 15.55 | | WT% | XRF |
| FEOT | 2.86 | | WT% | XRF |
| MNO | 0.05 | | WT% | XRF |
| MGO | 0.37 | | WT% | XRF |
| CAO | 2.1 | | WT% | XRF |
| NA2O | 4.66 | | WT% | INAA |
| K2O | 2.61 | | WT% | XRF |
| P2O5 | 0.06 | | WT% | XRF |
| TOTAL | 99.68 | | WT% | XRF |
| LOI | 1.93 | | WT% | XRF |
| RB | 67.4 | | PPM | XRF |
| SR | 213.2 | | PPM | XRF |
| ZR | 241.7 | | PPM | XRF |
