Sample HFT-1-100
NavDat sample number 35584 · PYROCLASTIC-FALL
Sample
| Sample ID | HFT-1-100 |
|---|---|
| Rock name | PYROCLASTIC-FALL |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
Location
| Latitude | 38.3981 |
|---|---|
| Longitude | -105.811 |
| Location | Kerr Gulch road |
| State / province | Colorado |
| Formation | HOWARD FELSIC TUFF |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 35 | 30 | 40 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 73.62 | WT% | UV-VIS COLORIMETRY | |
| TIO2 | 0.3 | WT% | XRF | |
| AL2O3 | 15.09 | WT% | AAS | |
| FE2O3 | 1.68 | WT% | AAS | |
| FEO | 0 | WT% | AAS | |
| MNO | 0.05 | WT% | UNKNOWN | |
| MGO | 0.94 | WT% | AAS | |
| CAO | 3.41 | WT% | XRF | |
| NA2O | 2.12 | WT% | AAS | |
| K2O | 2.74 | WT% | AAS | |
| P2O5 | 0.06 | WT% | XRF | |
| LOI | 11.56 | WT% | LOI | |
| TOTAL | 99.88 | WT% | LOI | |
| BA | 455 | PPM | XRF | |
| BE | 2.7 | PPM | UNKNOWN | |
| CO | 5 | PPM | UNKNOWN | |
| CR | 3 | PPM | UNKNOWN | |
| CU | 5 | PPM | UNKNOWN | |
| LI | 11 | PPM | UNKNOWN | |
| NI | 2 | PPM | UNKNOWN | |
| PB | 13 | PPM | UNKNOWN | |
| RB | 115 | PPM | XRF | |
| SR | 454 | PPM | XRF | |
| TH | 16 | PPM | GAMMA-RAY COUNTING | |
| U | 2.8 | PPM | GAMMA-RAY COUNTING | |
| V | 16 | PPM | UNKNOWN | |
| Y | 23 | PPM | ICP | |
| ZN | 32 | PPM | UNKNOWN | |
| ZR | 167 | PPM | XRF |