Sample 87-115
NavDat sample number 16990 · RHYOLITE
Sample
| Sample ID | 87-115 |
|---|---|
| Rock name | RHYOLITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
Location
| Latitude | 37.893 |
|---|---|
| Longitude | -106.904 |
| Location | First Fork, Willow Ck., 10,150' |
| 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 | 73.1004 | WT% | XRF | |
| TIO2 | 0.311922 | WT% | XRF | |
| AL2O3 | 14.6402 | WT% | XRF | |
| FE2O3 | 1.83128 | WT% | XRF | |
| MGO | 0.845208 | WT% | XRF | |
| CAO | 1.19738 | WT% | XRF | |
| NA2O | 3.25003 | WT% | XRF | |
| K2O | 5.28255 | WT% | XRF | |
| P2O5 | 0.10062 | WT% | XRF | |
| MNO | 0.060372 | WT% | XRF | |
| LOI | 1.57 | WT% | XRF | |
| TOTAL | 100.62 | WT% | XRF | |
| ZN | 154 | PPM | XRF | |
| RB | 131 | PPM | XRF | |
| SR | 28 | PPM | XRF | |
| Y | 187 | PPM | XRF | |
| TH | 552 | PPM | XRF | |
| BA | 57 | PPM | XRF | |
| LA | 73 | PPM | XRF | |
| ND | 1 | PPM | XRF | |
| CU | 13 | PPM | XRF | |
| NI | 4.39 | PPM | XRF | |
| TH | 18.8 | PPM | INAA | |
| U | 5.2 | PPM | INAA | |
| LA | 56.1 | PPM | INAA | |
| CE | 93.3 | PPM | INAA | |
| ND | 42.5 | PPM | INAA | |
| SM | 6.78 | PPM | INAA | |
| EU | 1 | PPM | INAA | |
| GD | 6.5 | PPM | INAA | |
| TB | 0.4 | PPM | INAA | |
| YB | 3.31 | PPM | INAA | |
| LU | 0.36 | PPM | INAA | |
| TA | 1.66 | PPM | INAA | |
| HF | 3.31 | PPM | INAA | |
| SC | 4.7 | PPM | INAA |