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Sample DS88-080
NavDat sample number 45901 · ANDESITE
Sample
| Sample ID | DS88-080 |
|---|
| Rock name | ANDESITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | INTERMEDIATE |
|---|
| Material | IGNEOUS |
|---|
Location
| Latitude | 37.849 |
|---|
| Longitude | -107.027 |
|---|
| 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 | 61.47 | | WT% | XRF |
| TIO2 | 0.913386 | | WT% | XRF |
| AL2O3 | 16.6618 | | WT% | XRF |
| FE2O3 | 6.27325 | | WT% | XRF |
| MGO | 1.43532 | | WT% | XRF |
| CAO | 4.316 | | WT% | XRF |
| NA2O | 4.10522 | | WT% | XRF |
| K2O | 4.07511 | | WT% | XRF |
| P2O5 | 0.491823 | | WT% | XRF |
| MNO | 0.0802976 | | WT% | XRF |
| LOI | 0.37 | | WT% | XRF |
| TOTAL | 99.8222 | | WT% | XRF |
| ZN | 122 | | PPM | XRF |
| RB | 103 | | PPM | XRF |
| SR | 939 | | PPM | XRF |
| Y | 24 | | PPM | XRF |
| ZR | 293 | | PPM | XRF |
| NB | 21 | | PPM | XRF |
| PB | 36 | | PPM | XRF |
| TH | 9 | | PPM | XRF |
| BA | 1666 | | PPM | XRF |
| LA | 74 | | PPM | XRF |
| CE | 124 | | PPM | XRF |
| ND | 48 | | PPM | XRF |
