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Sample 99L-21A
NavDat sample number 46069 · ANDESITE
Sample
| Sample ID | 99L-21A |
|---|
| Rock name | ANDESITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | INTERMEDIATE |
|---|
| Material | IGNEOUS |
|---|
Location
| Latitude | 37.514 |
|---|
| Longitude | -106.932 |
|---|
| Location | Beaver Ck. |
|---|
| State / province | COLORADO |
|---|
| Formation | La Garita Caldera Cycle, Huerto Andesite, andesite flows |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 27.71 |
|
27.62 |
27.8 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 60.59 | | WT% | XRF |
| TIO2 | 0.671018 | | WT% | XRF |
| AL2O3 | 17.2838 | | WT% | XRF |
| FE2O3 | 6.45601 | | WT% | XRF |
| MGO | 2.06389 | | WT% | XRF |
| CAO | 5.58165 | | WT% | XRF |
| NA2O | 3.93461 | | WT% | XRF |
| K2O | 2.13506 | | WT% | XRF |
| P2O5 | 0.386344 | | WT% | XRF |
| MNO | 0.162671 | | WT% | XRF |
| LOI | 1.63 | | WT% | XRF |
| TOTAL | 99.27 | | WT% | XRF |
