Sample 141
NavDat sample number 18423 · DACITE
Sample
| Sample ID | 141 |
|---|---|
| Rock name | DACITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | phenos of plag; hyalopilitic groundmass |
Location
| Latitude | 44.3129 |
|---|---|
| Longitude | -114.837 |
| Location | above East Basin 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 | 67.35 | WT% | AAS | |
| TIO2 | 0.59 | WT% | AAS | |
| AL2O3 | 14.01 | WT% | AAS | |
| FE2O3 | 1.11 | WT% | AAS | |
| FEO | 2.02 | WT% | TIT | |
| MNO | 0.06 | WT% | AAS | |
| MGO | 1.48 | WT% | AAS | |
| CAO | 3.19 | WT% | AAS | |
| NA2O | 4.4 | WT% | AAS | |
| K2O | 1.73 | WT% | AAS | |
| P2O5 | 0.14 | WT% | AAS | |
| H2O_PLUS | 3.52 | WT% | UNKNOWN | |
| H2O_MINUS | 0.51 | WT% | UNKNOWN | |
| TOTAL | 100.11 | WT% | AAS | |
| RB | 107 | PPM | XRF | |
| SR | 577 | PPM | XRF | |
| BA | 1252 | PPM | AAS | |
| NI | 12 | PPM | AAS | |
| CR | 37 | PPM | AAS | |
| ZR | 190 | PPM | XRF | |
| ZN | 37 | PPM | AAS | |
| CU | 13 | PPM | AAS |