Sample MD96-7
NavDat sample number 91834 · PYROCLASTIC-FALL
Sample
| Sample ID | MD96-7 |
|---|---|
| Rock name | PYROCLASTIC-FALL |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
Location
| Latitude | 37.438 |
|---|---|
| Longitude | -107.044 |
| State / province | COLORADO |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 27.93 | 27.75 | 28.11 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 67.93 | WT% | XRF | |
| TIO2 | 0.445 | WT% | XRF | |
| AL2O3 | 15.2 | WT% | XRF | |
| FE2O3 | 3.8 | WT% | XRF | |
| MGO | 1.09 | WT% | XRF | |
| CAO | 2.95 | WT% | XRF | |
| NA2O | 3.69 | WT% | XRF | |
| K2O | 4.344 | WT% | XRF | |
| P2O5 | 0.088 | WT% | XRF | |
| MNO | 0.189 | WT% | XRF | |
| LOI | 1.65 | WT% | XRF | |
| TOTAL | 99.726 | WT% | XRF | |
| ZN | 57 | PPM | XRF | |
| RB | 121.6 | PPM | XRF | |
| SR | 443 | PPM | XRF | |
| Y | 21 | PPM | XRF | |
| ZR | 187 | PPM | XRF | |
| NB | 16.3 | PPM | XRF | |
| PB | 16.8 | PPM | XRF | |
| TH | 13 | PPM | XRF | |
| BA | 845 | PPM | XRF | |
| LA | 42 | PPM | XRF | |
| CE | 72 | PPM | XRF | |
| ND | 27 | PPM | XRF | |
| CU | 5 | PPM | XRF | |
| V | 52 | PPM | XRF | |
| CR | 6 | PPM | XRF | |
| GA | 16.1 | PPM | XRF | |
| NI | 5 | PPM | XRF |