Sample LR87-707-2
NavDat sample number 46147 · ANDESITE
Sample
| Sample ID | LR87-707-2 |
|---|---|
| Rock name | ANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
Location
| Latitude | 37.747 |
|---|---|
| Longitude | -107.026 |
| Location | W of Hwy 149, southeast of Bristol Head |
| State / province | COLORADO |
| Formation | Conejos Formation and related early rocks |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 31.25 | 29.5 | 33 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 53.97 | WT% | XRF | |
| TIO2 | 1.13516 | WT% | XRF | |
| AL2O3 | 16.7862 | WT% | XRF | |
| FE2O3 | 10.8292 | WT% | XRF | |
| MGO | 3.45569 | WT% | XRF | |
| CAO | 7.29312 | WT% | XRF | |
| NA2O | 3.28492 | WT% | XRF | |
| K2O | 1.83835 | WT% | XRF | |
| P2O5 | 0.341551 | WT% | XRF | |
| MNO | 0.200913 | WT% | XRF | |
| LOI | 0.45 | WT% | XRF | |
| TOTAL | 99.1351 | WT% | XRF | |
| ZN | 118.333 | PPM | XRF | |
| RB | 28.3333 | PPM | XRF | |
| SR | 530.667 | PPM | XRF | |
| Y | 27.3333 | PPM | XRF | |
| ZR | 166 | PPM | XRF | |
| NB | 11.3333 | PPM | XRF | |
| PB | 39.6667 | PPM | XRF | |
| TH | 12 | PPM | XRF | |
| BA | 661 | PPM | XRF | |
| LA | 26 | PPM | XRF | |
| CE | 51 | PPM | XRF | |
| ND | 32 | PPM | XRF | |
| CS | 1.66 | PPM | INAA | |
| RB | 26.9 | PPM | INAA | |
| BA | 658 | PPM | INAA | |
| SR | 518 | PPM | INAA | |
| TH | 2.36 | PPM | INAA | |
| U | 0.691 | PPM | INAA | |
| LA | 23.5 | PPM | INAA | |
| CE | 52.4 | PPM | INAA | |
| ND | 28.1 | PPM | INAA | |
| SM | 6.38 | PPM | INAA | |
| EU | 1.75 | PPM | INAA | |
| GD | 5.99 | PPM | INAA | |
| TB | 0.883 | PPM | INAA | |
| HO | 1.25 | PPM | INAA | |
| TM | 0.491 | PPM | INAA | |
| YB | 3.03 | PPM | INAA | |
| LU | 0.449 | PPM | INAA | |
| TA | 0.345 | PPM | INAA | |
| ZR | 163 | PPM | INAA | |
| HF | 4.02 | PPM | INAA | |
| SB | 0.09 | PPM | INAA | |
| SC | 23.8 | PPM | INAA | |
| CR | 4.2 | PPM | INAA | |
| CO | 25.8 | PPM | INAA | |
| NI | 12.1 | PPM | INAA | |
| ZN | 114 | PPM | INAA |