Sample RA-4-71
NavDat sample number 35608 · ANDESITE
Sample
| Sample ID | RA-4-71 |
|---|---|
| Rock name | ANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
Location
| Latitude | 38.103 |
|---|---|
| Longitude | -105.32 |
| Location | Rosita-Game Ridge road on SE flank of Game Ridge |
| State / province | Colorado |
| Formation | ROSITA ANDESITE |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 30 | 25 | 35 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 59.36 | WT% | UV-VIS COLORIMETRY | |
| TIO2 | 0.77 | WT% | XRF | |
| AL2O3 | 18.43 | WT% | AAS | |
| FE2O3 | 2.4 | WT% | AAS | |
| FEO | 2.17 | WT% | AAS | |
| MNO | 0.06 | WT% | UNKNOWN | |
| MGO | 0.74 | WT% | AAS | |
| CAO | 5.79 | WT% | XRF | |
| NA2O | 1.35 | WT% | AAS | |
| K2O | 8.65 | WT% | AAS | |
| P2O5 | 0.28 | WT% | XRF | |
| LOI | 6.7 | WT% | LOI | |
| TOTAL | 98.95 | WT% | LOI | |
| BA | 1409 | PPM | XRF | |
| BE | 1.7 | PPM | UNKNOWN | |
| CO | 13 | PPM | UNKNOWN | |
| CR | 155 | PPM | UNKNOWN | |
| CU | 2 | PPM | UNKNOWN | |
| LI | 71 | PPM | UNKNOWN | |
| NI | 13 | PPM | UNKNOWN | |
| PB | 54 | PPM | UNKNOWN | |
| RB | 300 | PPM | XRF | |
| SR | 260 | PPM | XRF | |
| TH | 6.8 | PPM | GAMMA-RAY COUNTING | |
| U | 2.3 | PPM | GAMMA-RAY COUNTING | |
| V | 113 | PPM | UNKNOWN | |
| Y | 18 | PPM | ICP | |
| ZN | 95 | PPM | UNKNOWN | |
| ZR | 171 | PPM | XRF |