Sample 87-234
NavDat sample number 16955 · TUFF
Sample
| Sample ID | 87-234 |
|---|---|
| Rock name | TUFF |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
Location
| Latitude | 37.533 |
|---|---|
| Longitude | -106.783 |
| Location | Heart Mtn., below vitrophyre |
| State / province | COLORADO |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 27.1 | 27 | 27.2 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 71.2907 | WT% | XRF | |
| TIO2 | 0.390936 | WT% | XRF | |
| AL2O3 | 15.3467 | WT% | XRF | |
| FE2O3 | 1.7943 | WT% | XRF | |
| MGO | 0.711704 | WT% | XRF | |
| CAO | 1.35324 | WT% | XRF | |
| NA2O | 2.63631 | WT% | XRF | |
| K2O | 6.56572 | WT% | XRF | |
| P2O5 | 0.10024 | WT% | XRF | |
| MNO | 0.040096 | WT% | XRF | |
| LOI | 2.4 | WT% | XRF | |
| TOTAL | 100.23 | WT% | XRF | |
| ZN | 72 | PPM | XRF | |
| RB | 173 | PPM | XRF | |
| SR | 244 | PPM | XRF | |
| Y | 33 | PPM | XRF | |
| ZR | 264 | PPM | XRF | |
| BA | 824 | PPM | XRF | |
| LA | 70 | PPM | XRF | |
| CE | 101 | PPM | XRF | |
| CU | 5 | PPM | XRF | |
| V | 17 | PPM | XRF | |
| TH | 19.3 | PPM | INAA | |
| U | 7.4 | PPM | INAA | |
| LA | 64.3 | PPM | INAA | |
| CE | 106.9 | PPM | INAA | |
| ND | 52.9 | PPM | INAA | |
| SM | 8.12 | PPM | INAA | |
| EU | 1.28 | PPM | INAA | |
| GD | 3.5 | PPM | INAA | |
| TB | 1.09 | PPM | INAA | |
| YB | 3.32 | PPM | INAA | |
| LU | 0.41 | PPM | INAA | |
| TA | 1.66 | PPM | INAA | |
| HF | 4.32 | PPM | INAA | |
| SC | 5 | PPM | INAA |