Sample RRA-1-139
NavDat sample number 35615 · ANDESITE
Sample
| Sample ID | RRA-1-139 |
|---|---|
| Rock name | ANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
Location
| Latitude | 39.2977 |
|---|---|
| Longitude | -105.853 |
| Location | Slater Ditch |
| State / province | Colorado |
| Formation | REINECKER RIDGE ANDESITE |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 62 | 57 | 67 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 63.75 | WT% | UV-VIS COLORIMETRY | |
| TIO2 | 0.64 | WT% | XRF | |
| AL2O3 | 15.78 | WT% | AAS | |
| FE2O3 | 2.18 | WT% | AAS | |
| FEO | 3.56 | WT% | AAS | |
| MNO | 0.16 | WT% | UNKNOWN | |
| MGO | 1.98 | WT% | AAS | |
| CAO | 4.7 | WT% | XRF | |
| NA2O | 4.17 | WT% | AAS | |
| K2O | 2.75 | WT% | AAS | |
| P2O5 | 0.33 | WT% | XRF | |
| LOI | 1.41 | WT% | LOI | |
| TOTAL | 99.03 | WT% | LOI | |
| BA | 1213 | PPM | XRF | |
| BE | 3.7 | PPM | UNKNOWN | |
| CO | 18 | PPM | UNKNOWN | |
| CR | 81 | PPM | UNKNOWN | |
| CU | 12 | PPM | UNKNOWN | |
| LI | 22 | PPM | UNKNOWN | |
| NB | 30 | PPM | XRF | |
| NI | 18 | PPM | UNKNOWN | |
| PB | 39 | PPM | UNKNOWN | |
| RB | 66 | PPM | XRF | |
| SR | 852 | PPM | XRF | |
| TH | 9.3 | PPM | GAMMA-RAY COUNTING | |
| U | 2 | PPM | GAMMA-RAY COUNTING | |
| V | 97 | PPM | UNKNOWN | |
| Y | 23 | PPM | ICP | |
| ZN | 73 | PPM | UNKNOWN | |
| ZR | 168 | PPM | XRF |