Sample BH-27
NavDat sample number 37836 · ANDESITE
Sample
| Sample ID | BH-27 |
|---|---|
| Rock name | ANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
Location
| Latitude | 37.793 |
|---|---|
| Longitude | -107.061 |
| Location | south slope of Bristol Head |
| 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 | 59.4837 | WT% | XRF | |
| TIO2 | 0.91436 | WT% | XRF | |
| AL2O3 | 17.1819 | WT% | XRF | |
| FE2O3 | 7.4455 | WT% | XRF | |
| MGO | 2.45169 | WT% | XRF | |
| CAO | 5.71726 | WT% | XRF | |
| NA2O | 3.80816 | WT% | XRF | |
| K2O | 3.08471 | WT% | XRF | |
| P2O5 | 0.462204 | WT% | XRF | |
| MNO | 0.110527 | WT% | XRF | |
| LOI | 0.48 | WT% | XRF | |
| TOTAL | 100.66 | WT% | XRF | |
| RB | 103 | PPM | XRF | |
| SR | 807 | PPM | XRF | |
| Y | 31 | PPM | XRF | |
| ZR | 275 | PPM | XRF | |
| NB | 16 | PPM | XRF | |
| TH | 6 | PPM | XRF | |
| BA | 1200 | PPM | XRF | |
| CR | 18 | PPM | XRF | |
| LA | 36.8 | PPM | INAA | |
| CE | 76.8 | PPM | INAA | |
| SM | 7.54 | PPM | INAA | |
| EU | 1.9 | PPM | INAA | |
| TB | 0.85 | PPM | INAA | |
| YB | 2.61 | PPM | INAA | |
| LU | 0.51 | PPM | INAA | |
| TA | 0.69 | PPM | INAA | |
| HF | 4.58 | PPM | INAA | |
| SC | 12.1 | PPM | INAA | |
| CR | 18 | PPM | INAA | |
| CO | 14.2 | PPM | INAA |