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Sample 85L-18C
NavDat sample number 45796 · TUFF
Sample
| Sample ID | 85L-18C |
|---|
| Rock name | TUFF |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
Location
| Latitude | 37.937 |
|---|
| Longitude | -107.064 |
|---|
| Location | Miners Creek, Snow Mesa |
|---|
| State / province | COLORADO |
|---|
| Formation | Nelson Mountain Caldera cycle, Nelson Mountain Tuff, middle welded wedge |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 26.5 |
|
25.9 |
27.1 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 70.98 | | WT% | XRF |
| TIO2 | 0.341474 | | WT% | XRF |
| AL2O3 | 15.055 | | WT% | XRF |
| FE2O3 | 2.0388 | | WT% | XRF |
| MGO | 0.461994 | | WT% | XRF |
| CAO | 1.51654 | | WT% | XRF |
| NA2O | 4.16799 | | WT% | XRF |
| K2O | 4.94132 | | WT% | XRF |
| P2O5 | 0.0903901 | | WT% | XRF |
| MNO | 0.0502167 | | WT% | XRF |
| LOI | 0.43 | | WT% | XRF |
| TOTAL | 99.64 | | WT% | XRF |
| ZN | 52 | | PPM | XRF |
| RB | 138 | | PPM | XRF |
| SR | 275 | | PPM | XRF |
| Y | 22 | | PPM | XRF |
| ZR | 244 | | PPM | XRF |
| NB | 23 | | PPM | XRF |
| PB | 20 | | PPM | XRF |
| NI | -10 | | PPM | XRF |
