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Sample 98L-7
NavDat sample number 45941 · DACITE
Sample
| Sample ID | 98L-7 |
|---|
| Rock name | DACITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
Location
| Latitude | 37.653 |
|---|
| Longitude | -106.969 |
|---|
| Location | Lava flow, overlies 98L-6 |
|---|
| State / province | COLORADO |
|---|
| Formation | South River Caldera Cycle, Silver River volcanics |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 27 |
|
26.9 |
27.1 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 62.31 | | WT% | XRF |
| TIO2 | 0.841447 | | WT% | XRF |
| AL2O3 | 16.458 | | WT% | XRF |
| FE2O3 | 5.85354 | | WT% | XRF |
| MGO | 1.71643 | | WT% | XRF |
| CAO | 4.47959 | | WT% | XRF |
| NA2O | 3.93996 | | WT% | XRF |
| K2O | 3.42473 | | WT% | XRF |
| P2O5 | 0.38109 | | WT% | XRF |
| MNO | 0.0884129 | | WT% | XRF |
| LOI | 1.59 | | WT% | XRF |
| TOTAL | 99.495 | | WT% | XRF |
| ZN | 108 | | PPM | XRF |
| RB | 85 | | PPM | XRF |
| SR | 867 | | PPM | XRF |
| Y | 20 | | PPM | XRF |
| ZR | 199 | | PPM | XRF |
| NB | 14 | | PPM | XRF |
| BA | 1300 | | PPM | XRF |
| CU | 37 | | PPM | XRF |
| NI | 23 | | PPM | XRF |
