Sample 1646
NavDat sample number 52776 · DACITE
Sample
| Sample ID | 1646 |
|---|---|
| Rock name | DACITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
Location
| Latitude | 43.4908 |
|---|---|
| Longitude | -112.684 |
| Location | Eastern Snake River Plain volcanic field |
| State / province | Idaho |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 1.4 | 1.26 | 1.54 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SC | 11 | PPM | NAA | |
| LA | 77 | PPM | NAA | |
| CE | 169 | PPM | NAA | |
| ND | 71 | PPM | NAA | |
| SM | 19 | PPM | NAA | |
| EU | 1.7 | PPM | NAA | |
| TB | 4.2 | PPM | NAA | |
| YB | 12 | PPM | NAA | |
| LU | 1.6 | PPM | NAA | |
| HF | 15 | PPM | NAA | |
| TA | 7.4 | PPM | NAA | |
| TH | 16 | PPM | NAA | |
| U | 6 | PPM | NAA | |
| SIO2 | 64.9 | WT% | ICPAES | |
| TIO2 | 1.3 | WT% | ICPAES | |
| AL2O3 | 13.2 | WT% | ICPAES | |
| FEOT | 6.69 | WT% | ICPAES | |
| MNO | 0.11 | WT% | ICPAES | |
| MGO | 2.5 | WT% | ICPAES | |
| CAO | 3.7 | WT% | ICPAES | |
| NA2O | 3.2 | WT% | ICPAES | |
| K2O | 4.2 | WT% | ICPAES | |
| P2O5 | 0.29 | WT% | ICPAES | |
| TOTAL | 98.6 | WT% | ICPAES | |
| SR | 117 | PPM | ICPAES | |
| BA | 182 | PPM | ICPAES | |
| ZR | 393 | PPM | ICPAES | |
| CR | 78 | PPM | NAA | |
| CO | 26 | PPM | NAA | |
| RB | 142 | PPM | NAA | |
| CS | 2.1 | PPM | NAA |