Sample A19
NavDat sample number 127435 · RHYOLITE
Sample
| Sample ID | A19 |
|---|---|
| Rock name | RHYOLITE |
| Rock type | PLUTONIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | Rhyolite porphyry |
Location
| Latitude | 40.13 |
|---|---|
| Longitude | -105.38 |
| Location | Jamestown mining district |
| State / province | COLORADO |
| Formation | Porphyry Mountain Stock |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 45 | 41.2 | 48.8 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 67.02 | WT% | XRF | |
| TIO2 | 0.19 | WT% | XRF | |
| AL2O3 | 17.32 | WT% | XRF | |
| FE2O3 | 0.68 | WT% | XRF | |
| MNO | 0.07 | WT% | XRF | |
| MGO | 0.94 | WT% | XRF | |
| CAO | 0.46 | WT% | XRF | |
| NA2O | 4.75 | WT% | XRF | |
| K2O | 5.99 | WT% | XRF | |
| P2O5 | 0.05 | WT% | XRF | |
| V | 0.00641 | PPM | UNKNOWN | |
| MN | 88.76 | PPM | UNKNOWN | |
| CO | 6.04 | PPM | UNKNOWN | |
| NI | 7.35 | PPM | UNKNOWN | |
| CU | 0.25 | PPM | UNKNOWN | |
| ZN | 47.42 | PPM | UNKNOWN | |
| RB | 300.47 | PPM | UNKNOWN | |
| SR | 1600 | PPM | UNKNOWN | |
| Y | 0.78 | PPM | UNKNOWN | |
| ZR | 259.44 | PPM | UNKNOWN | |
| NB | 45.59 | PPM | UNKNOWN | |
| MO | 9.84 | PPM | UNKNOWN | |
| U | 0.0163 | PPM | UNKNOWN | |
| ARSENIC | 13.58 | PPM | UNKNOWN | |
| SE | 0.00083 | PPM | UNKNOWN | |
| AG | 0.00279 | PPM | UNKNOWN | |
| CD | 0.00024 | PPM | UNKNOWN | |
| SN | 1.68 | PPM | UNKNOWN | |
| SB | 1 | PPM | UNKNOWN | |
| TE | 0 | PPM | UNKNOWN | |
| BA | 2400 | PPM | UNKNOWN | |
| LA | 0 | PPM | UNKNOWN | |
| CE | 2.82 | PPM | UNKNOWN |