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Sample 94L-22
NavDat sample number 45899 · ANDESITE
Sample
| Sample ID | 94L-22 |
|---|
| Rock name | ANDESITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | INTERMEDIATE |
|---|
| Material | IGNEOUS |
|---|
Location
| Latitude | 37.799 |
|---|
| Longitude | -107.047 |
|---|
| Location | Bristol Head |
|---|
| State / province | COLORADO |
|---|
| Formation | Rat Creek or late flow of SR cycle? Caldera Cycle, andesite of Bristol Head, lower flow |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 31.5 |
|
28 |
35 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 55.26 | | WT% | XRF |
| TIO2 | 1.07693 | | WT% | XRF |
| AL2O3 | 17.1102 | | WT% | XRF |
| FE2O3 | 9.66221 | | WT% | XRF |
| MGO | 3.18048 | | WT% | XRF |
| CAO | 6.82394 | | WT% | XRF |
| NA2O | 3.24087 | | WT% | XRF |
| K2O | 2.48601 | | WT% | XRF |
| P2O5 | 0.412657 | | WT% | XRF |
| MNO | 0.150972 | | WT% | XRF |
| LOI | 0.64 | | WT% | XRF |
| TOTAL | 99.4 | | WT% | XRF |
| ZN | 80 | | PPM | XRF |
| RB | 46 | | PPM | XRF |
| SR | 760 | | PPM | XRF |
| Y | 37 | | PPM | XRF |
| ZR | 170 | | PPM | XRF |
| NB | -10 | | PPM | XRF |
| BA | 790 | | PPM | XRF |
| LA | -30 | | PPM | XRF |
| CE | 57 | | PPM | XRF |
| CU | 36 | | PPM | XRF |
| CR | -20 | | PPM | XRF |
| NI | 15 | | PPM | XRF |
