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Sample JM-1
NavDat sample number 67145 · RHYOLITE
Sample
| Sample ID | JM-1 |
|---|
| Rock name | RHYOLITE |
|---|
| Rock type | PLUTONIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
Location
| Latitude | 39.08 |
|---|
| Longitude | -106.58 |
|---|
| Location | Jenkins mtn. |
|---|
| State / province | COLORADO |
|---|
| Formation | Post-resurgent intrusions of Grizzly Peak Cauldron |
|---|
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 | 73.1 | | WT% | XRF |
| AL2O3 | 16.21 | | WT% | XRF |
| FE2O3 | 0.77 | | WT% | XRF |
| MGO | 0.23 | | WT% | XRF |
| CAO | 0.19 | | WT% | XRF |
| NA2O | 4.1 | | WT% | XRF |
| K2O | 4.45 | | WT% | XRF |
| TIO2 | 0.1 | | WT% | XRF |
| P2O5 | 0.04 | | WT% | XRF |
| MNO | 0.01 | | WT% | XRF |
| NB | 14 | | PPM | XRF |
| ZR | 90 | | PPM | XRF |
| Y | 19 | | PPM | XRF |
| SR | 128 | | PPM | XRF |
| RB | 120 | | PPM | XRF |
| BA | 460 | | PPM | XRF |
