Sample 1620
NavDat sample number 52775 · DACITE
Sample
| Sample ID | 1620 |
|---|---|
| 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 | 9 | PPM | NAA | |
| LA | 82 | PPM | NAA | |
| CE | 193 | PPM | NAA | |
| ND | 79 | PPM | NAA | |
| SM | 20 | PPM | NAA | |
| EU | 1.3 | PPM | NAA | |
| TB | 4.4 | PPM | NAA | |
| YB | 15 | PPM | NAA | |
| LU | 1.8 | PPM | NAA | |
| HF | 18 | PPM | NAA | |
| TA | 9.2 | PPM | NAA | |
| TH | 20 | PPM | NAA | |
| U | 6.9 | PPM | NAA | |
| SIO2 | 68.1 | WT% | ICPAES | |
| TIO2 | 1 | WT% | ICPAES | |
| AL2O3 | 12.9 | WT% | ICPAES | |
| FEOT | 5.42 | WT% | ICPAES | |
| MNO | 0.06 | WT% | ICPAES | |
| MGO | 1.8 | WT% | ICPAES | |
| CAO | 2.7 | WT% | ICPAES | |
| NA2O | 3.6 | WT% | ICPAES | |
| K2O | 4.3 | WT% | ICPAES | |
| P2O5 | 0.22 | WT% | ICPAES | |
| TOTAL | 97.8 | WT% | ICPAES | |
| SR | 90 | PPM | ICPAES | |
| BA | 147 | PPM | ICPAES | |
| ZR | 396 | PPM | ICPAES | |
| CR | 56 | PPM | NAA | |
| CO | 30 | PPM | NAA | |
| RB | 175 | PPM | NAA | |
| CS | 3.1 | PPM | NAA |