Sample JGRA-1-125
NavDat sample number 35590 · RHYOLITE
Sample
| Sample ID | JGRA-1-125 |
|---|---|
| Rock name | RHYOLITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
Location
| Latitude | 38.1857 |
|---|---|
| Longitude | -105.403 |
| Location | Silver Cliff-Canon City road |
| State / province | Colorado |
| Formation | JOHNSON GULCH RHYOLITIC ASH |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 35 | 30 | 40 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 74.91 | WT% | UV-VIS COLORIMETRY | |
| TIO2 | 0.2 | WT% | XRF | |
| AL2O3 | 14.8 | WT% | AAS | |
| FE2O3 | 1.24 | WT% | AAS | |
| FEO | 0 | WT% | AAS | |
| MNO | 0.15 | WT% | UNKNOWN | |
| MGO | 0.55 | WT% | AAS | |
| CAO | 1.25 | WT% | XRF | |
| NA2O | 2.29 | WT% | AAS | |
| K2O | 4.58 | WT% | AAS | |
| P2O5 | 0.03 | WT% | XRF | |
| LOI | 7.58 | WT% | LOI | |
| TOTAL | 99.73 | WT% | LOI | |
| BA | 110 | PPM | XRF | |
| BE | 5.8 | PPM | UNKNOWN | |
| CO | 8 | PPM | UNKNOWN | |
| CR | 28 | PPM | UNKNOWN | |
| CU | 18 | PPM | UNKNOWN | |
| LI | 4 | PPM | UNKNOWN | |
| NI | 16 | PPM | UNKNOWN | |
| PB | 98 | PPM | UNKNOWN | |
| RB | 199 | PPM | XRF | |
| SR | 72 | PPM | XRF | |
| TH | 12 | PPM | GAMMA-RAY COUNTING | |
| U | 4.4 | PPM | GAMMA-RAY COUNTING | |
| V | 29 | PPM | UNKNOWN | |
| Y | 40 | PPM | ICP | |
| ZN | 145 | PPM | UNKNOWN | |
| ZR | 88 | PPM | XRF |