Sample Ds453
NavDat sample number 45677 · RHYOLITE
Sample
| Sample ID | Ds453 |
|---|---|
| Rock name | RHYOLITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
Location
| Latitude | 38.226 |
|---|---|
| Longitude | -106.732 |
| Location | Cochetopa Dome |
| State / province | COLORADO |
| Formation | Rhyolite of Cochetopa Dome |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 26.3 | 26.21 | 26.39 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 76.93 | WT% | XRF | |
| TIO2 | 0.13 | WT% | XRF | |
| AL2O3 | 12.37 | WT% | XRF | |
| FE2O3 | 0.86 | WT% | XRF | |
| MGO | 0.02 | WT% | XRF | |
| CAO | 0.16 | WT% | XRF | |
| NA2O | 0.49 | WT% | XRF | |
| K2O | 3.52 | WT% | XRF | |
| P2O5 | 4.63 | WT% | XRF | |
| MNO | 0.1 | WT% | XRF | |
| LOI | 0.55 | WT% | XRF | |
| TOTAL | 99.21 | WT% | XRF | |
| RB | 210 | PPM | INAA | |
| BA | -35 | PPM | INAA | |
| SR | -75 | PPM | INAA | |
| TH | 18 | PPM | INAA | |
| U | 5.73 | PPM | INAA | |
| LA | 32.1 | PPM | INAA | |
| CE | 59.95 | PPM | INAA | |
| ND | 16.3 | PPM | INAA | |
| SM | 2.7 | PPM | INAA | |
| EU | 0.1 | PPM | INAA | |
| GD | 2.45 | PPM | INAA | |
| TB | 0.415 | PPM | INAA | |
| TM | 0.474 | PPM | INAA | |
| YB | 3.035 | PPM | INAA | |
| LU | 0.464 | PPM | INAA | |
| TA | 2.03 | PPM | INAA | |
| ZR | 99.9 | PPM | INAA | |
| HF | 5.535 | PPM | INAA | |
| SB | 0 | PPM | INAA | |
| SC | 2.1 | PPM | INAA | |
| CR | 1.7 | PPM | INAA | |
| CO | 0.39 | PPM | INAA | |
| ZN | 62.55 | PPM | INAA |