Sample BH-21
NavDat sample number 37835 · ANDESITE
Sample
| Sample ID | BH-21 |
|---|---|
| Rock name | ANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
Location
| Latitude | 37.794 |
|---|---|
| Longitude | -107.053 |
| Location | east side of Bristol Head summit |
| State / province | COLORADO |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 31.5 | 28 | 35 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 63.6458 | WT% | XRF | |
| TIO2 | 0.653551 | WT% | XRF | |
| AL2O3 | 17.3945 | WT% | XRF | |
| FE2O3 | 5.0977 | WT% | XRF | |
| MGO | 1.06579 | WT% | XRF | |
| CAO | 4.43409 | WT% | XRF | |
| NA2O | 3.08677 | WT% | XRF | |
| K2O | 3.57945 | WT% | XRF | |
| P2O5 | 0.311694 | WT% | XRF | |
| MNO | 0.110601 | WT% | XRF | |
| LOI | 0.54 | WT% | XRF | |
| TOTAL | 99.38 | WT% | XRF | |
| RB | 97 | PPM | XRF | |
| SR | 778 | PPM | XRF | |
| Y | 26 | PPM | XRF | |
| ZR | 262 | PPM | XRF | |
| NB | 12 | PPM | XRF | |
| TH | 11 | PPM | XRF | |
| BA | 1170 | PPM | XRF | |
| CR | 20 | PPM | XRF | |
| LA | 51.1 | PPM | INAA | |
| CE | 101.7 | PPM | INAA | |
| SM | 7.72 | PPM | INAA | |
| EU | 1.84 | PPM | INAA | |
| TB | 0.83 | PPM | INAA | |
| YB | 2.04 | PPM | INAA | |
| LU | 0.38 | PPM | INAA | |
| TA | 0.83 | PPM | INAA | |
| HF | 5.72 | PPM | INAA | |
| SC | 8.6 | PPM | INAA | |
| CR | 20 | PPM | INAA | |
| CO | 8.1 | PPM | INAA |