Sample IRT-1-140
NavDat sample number 35588 · TUFF
Sample
| Sample ID | IRT-1-140 |
|---|---|
| Rock name | TUFF |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
Location
| Latitude | 39.231 |
|---|---|
| Longitude | -105.809 |
| Location | Elkhorn quad; Park county |
| State / province | Colorado |
| Formation | INDIAN ROAD TUFF |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 35 | 30 | 40 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 69.03 | WT% | UV-VIS COLORIMETRY | |
| TIO2 | 0.4 | WT% | XRF | |
| AL2O3 | 15.86 | WT% | AAS | |
| FE2O3 | 1.95 | WT% | AAS | |
| FEO | 1.46 | WT% | AAS | |
| MNO | 0.07 | WT% | UNKNOWN | |
| MGO | 1.24 | WT% | AAS | |
| CAO | 5.34 | WT% | XRF | |
| NA2O | 2.85 | WT% | AAS | |
| K2O | 1.66 | WT% | AAS | |
| P2O5 | 0.14 | WT% | XRF | |
| LOI | 3.92 | WT% | LOI | |
| TOTAL | 100.94 | WT% | LOI | |
| BA | 956 | PPM | XRF | |
| BE | 0.6 | PPM | UNKNOWN | |
| CO | 13 | PPM | UNKNOWN | |
| CR | 6 | PPM | UNKNOWN | |
| CU | 3 | PPM | UNKNOWN | |
| LI | 20 | PPM | UNKNOWN | |
| NI | 3 | PPM | UNKNOWN | |
| PB | 17 | PPM | UNKNOWN | |
| RB | 20 | PPM | XRF | |
| SR | 1729 | PPM | XRF | |
| TH | 5.9 | PPM | GAMMA-RAY COUNTING | |
| U | 1.2 | PPM | GAMMA-RAY COUNTING | |
| V | 41 | PPM | UNKNOWN | |
| Y | 18 | PPM | ICP | |
| ZN | 67 | PPM | UNKNOWN | |
| ZR | 149 | PPM | XRF |