Sample W166550
NavDat sample number 4461 · ANDESITE
Sample
| Sample ID | W166550 |
|---|---|
| Rock name | ANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
Location
| Latitude | 37.7591 |
|---|---|
| Longitude | -106.33 |
| State / province | Colorado |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 29.7 | 23.8 | 35.6 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 56.3 | WT% | UNKNOWN | |
| AL2O3 | 15.4 | WT% | UNKNOWN | |
| FE2O3 | 4.1 | WT% | UNKNOWN | |
| FEO | 3.2 | WT% | UNKNOWN | |
| MGO | 4.8 | WT% | UNKNOWN | |
| CAO | 6.7 | WT% | UNKNOWN | |
| NA2O | 3.5 | WT% | UNKNOWN | |
| K2O | 2.7 | WT% | UNKNOWN | |
| H2O_MINUS | 0.5 | WT% | UNKNOWN | |
| H2O | 1.1 | WT% | UNKNOWN | |
| TIO2 | 0.98 | WT% | UNKNOWN | |
| P2O5 | 0.37 | WT% | UNKNOWN | |
| MNO | 0.12 | WT% | UNKNOWN | |
| TOTAL | 100 | WT% | UNKNOWN | |
| LA | 30 | PPM | NAA | |
| CE | 79 | PPM | NAA | |
| ND | 37 | PPM | NAA | |
| SM | 5.9 | PPM | NAA | |
| EU | 1.6 | PPM | NAA | |
| GD | 5.7 | PPM | NAA | |
| TB | 0.71 | PPM | NAA | |
| DY | 3.3 | PPM | NAA | |
| YB | 1.5 | PPM | NAA | |
| LU | 0.24 | PPM | NAA | |
| BA | 1160 | PPM | XRF | |
| RB | 65 | PPM | XRF | |
| SR | 930 | PPM | XRF | |
| NI | 74 | PPM | XRF | |
| U | 1.1 | PPM | NAA | |
| TH | 3.6 | PPM | NAA |