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Sample EM-11
NavDat sample number 67164 · RHYOLITE
Sample
| Sample ID | EM-11 |
|---|
| Rock name | RHYOLITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
| Comment | rhyolite lava |
|---|
Location
| Latitude | 39.08 |
|---|
| Longitude | -106.58 |
|---|
| Location | grizzly peak cauldron |
|---|
| State / province | COLORADO |
|---|
| Formation | Grizzly Peak Tuff |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 33 |
|
29.7 |
36.3 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 74.7 | | WT% | XRF |
| AL2O3 | 14.7 | | WT% | XRF |
| FE2O3 | 0.64 | | WT% | XRF |
| MGO | 0.14 | | WT% | XRF |
| CAO | 0.55 | | WT% | XRF |
| NA2O | 3.53 | | WT% | XRF |
| K2O | 5.64 | | WT% | XRF |
| TIO2 | 0.08 | | WT% | XRF |
| P2O5 | 0.02 | | WT% | XRF |
| MNO | 0.03 | | WT% | XRF |
| NB | 16 | | PPM | XRF |
| ZR | 68 | | PPM | XRF |
| Y | 23 | | PPM | XRF |
| SR | 58 | | PPM | XRF |
| RB | 154 | | PPM | XRF |
