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Sample C-992
NavDat sample number 1370 · TUFF
Sample
| Sample ID | C-992 |
|---|
| Rock name | TUFF |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
Location
| Latitude | 37.885 |
|---|
| Longitude | -106.935 |
|---|
| Location | Amethyst Mine, W. Willow Ck. |
|---|
| State / province | COLORADO |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 27.35 |
|
27.25 |
27.45 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 76.2 | | WT% | XRF |
| TIO2 | 0.2 | | WT% | XRF |
| AL2O3 | 12.06 | | WT% | XRF |
| FE2O3 | 1.18 | | WT% | XRF |
| MGO | 0.18 | | WT% | XRF |
| CAO | 0.19 | | WT% | XRF |
| NA2O | 1.01 | | WT% | XRF |
| K2O | 8.9 | | WT% | XRF |
| P2O5 | 0.03 | | WT% | XRF |
| MNO | 0.02 | | WT% | XRF |
| LOI | 0.22 | | WT% | XRF |
| TOTAL | 99.97 | | WT% | XRF |
