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Sample DS88-079
NavDat sample number 45900 · ANDESITE
Sample
| Sample ID | DS88-079 |
|---|
| Rock name | ANDESITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | INTERMEDIATE |
|---|
| Material | IGNEOUS |
|---|
Location
| Latitude | 37.852 |
|---|
| Longitude | -107.031 |
|---|
| Location | north of Shallow Creek |
|---|
| State / province | COLORADO |
|---|
| Formation | Rat Creek or late flow of SR cycle? Caldera Cycle, andesite of Bristol Head |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 31.5 |
|
28 |
35 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 61.16 | | WT% | XRF |
| TIO2 | 0.890022 | | WT% | XRF |
| AL2O3 | 16.2834 | | WT% | XRF |
| FE2O3 | 6.12902 | | WT% | XRF |
| MGO | 1.67891 | | WT% | XRF |
| CAO | 4.63216 | | WT% | XRF |
| NA2O | 3.99499 | | WT% | XRF |
| K2O | 4.10624 | | WT% | XRF |
| P2O5 | 0.465239 | | WT% | XRF |
| MNO | 0.121367 | | WT% | XRF |
| LOI | 1.12 | | WT% | XRF |
| TOTAL | 99.4613 | | WT% | XRF |
| ZN | 112 | | PPM | XRF |
| RB | 23 | | PPM | XRF |
| SR | 105 | | PPM | XRF |
| Y | 24 | | PPM | XRF |
| ZR | 272 | | PPM | XRF |
| NB | 21 | | PPM | XRF |
| PB | 50 | | PPM | XRF |
| TH | 18 | | PPM | XRF |
| BA | 1737 | | PPM | XRF |
| LA | 75 | | PPM | XRF |
| CE | 120 | | PPM | XRF |
| ND | 47 | | PPM | XRF |
