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Sample 97L-8
NavDat sample number 46060 · DACITE
Sample
| Sample ID | 97L-8 |
|---|
| Rock name | DACITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
Location
| Latitude | 37.699 |
|---|
| Longitude | -107.136 |
|---|
| State / province | COLORADO |
|---|
| Formation | La Garita Caldera Cycle, Huerto Andesite, dacite 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 | 67.98 | | WT% | XRF |
| TIO2 | 0.432871 | | WT% | XRF |
| AL2O3 | 16.5631 | | WT% | XRF |
| FE2O3 | 2.91406 | | WT% | XRF |
| MGO | 0.415718 | | WT% | XRF |
| CAO | 2.37322 | | WT% | XRF |
| NA2O | 4.54666 | | WT% | XRF |
| K2O | 4.03711 | | WT% | XRF |
| P2O5 | 0.173552 | | WT% | XRF |
| MNO | 0.0807219 | | WT% | XRF |
| LOI | 0.89 | | WT% | XRF |
| TOTAL | 99.513 | | WT% | XRF |
| RB | 93 | | PPM | XRF |
| SR | 449 | | PPM | XRF |
| Y | 26 | | PPM | XRF |
| ZR | 312 | | PPM | XRF |
| NB | 16 | | PPM | XRF |
| BA | 1290 | | PPM | XRF |
