Sample 182
NavDat sample number 18426 · DACITE
Sample
| Sample ID | 182 |
|---|---|
| Rock name | DACITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | phenos of plag and hb; patchy quartzo feldspathic groundmass |
Location
| Latitude | 44.3312 |
|---|---|
| Longitude | -114.754 |
| Location | above Rankin Creek |
| State / province | Idaho |
| Volcanic field | Challis Volcanics |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 46 | 43 | 49 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 64.18 | WT% | AAS | |
| TIO2 | 0.66 | WT% | AAS | |
| AL2O3 | 15.75 | WT% | AAS | |
| FE2O3 | 2.31 | WT% | AAS | |
| FEO | 1.78 | WT% | TIT | |
| MNO | 0.06 | WT% | AAS | |
| MGO | 2.08 | WT% | AAS | |
| CAO | 4.35 | WT% | AAS | |
| NA2O | 3.57 | WT% | AAS | |
| K2O | 2.46 | WT% | AAS | |
| P2O5 | 0.19 | WT% | AAS | |
| H2O_PLUS | 1.34 | WT% | UNKNOWN | |
| H2O_MINUS | 1.22 | WT% | UNKNOWN | |
| TOTAL | 99.95 | WT% | AAS | |
| RB | 66 | PPM | XRF | |
| SR | 577 | PPM | XRF | |
| BA | 1164 | PPM | AAS | |
| NI | 21 | PPM | AAS | |
| CR | 106 | PPM | AAS | |
| ZR | 185 | PPM | XRF | |
| ZN | 59 | PPM | AAS | |
| CU | 9 | PPM | AAS |