Sample 95ID-44
NavDat sample number 38660 · DACITE
Sample
| Sample ID | 95ID-44 |
|---|---|
| Rock name | DACITE |
| Rock type | VOLCANIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Comment | fine grained porphyritic with phenos of plag, opx, cpx, opaques, and bio; cryptocrystalline groundmass |
Location
| Latitude | 44.4433 |
|---|---|
| Longitude | -114.227 |
| Location | Birch Creek; same locality as 95ID-42A but different dike |
| State / province | Idaho |
| Volcanic field | dike from Tdf unit, Challis Volcanic Group |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 48 | 46 | 50 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 64.16 | WT% | XRF | |
| TIO2 | 0.73 | WT% | XRF | |
| AL2O3 | 15.35 | WT% | XRF | |
| FEOT | 4.73 | WT% | XRF | |
| MNO | 0.09 | WT% | XRF | |
| MGO | 3.25 | WT% | XRF | |
| CAO | 4.88 | WT% | XRF | |
| NA2O | 3.71 | WT% | XRF | |
| K2O | 2.87 | WT% | XRF | |
| P2O5 | 0.24 | WT% | XRF | |
| LOI | 1.68 | WT% | XRF | |
| TOTAL | 100 | WT% | XRF | |
| NI | 10 | PPM | XRF | |
| CR | 70 | PPM | XRF | |
| SC | 21 | PPM | XRF | |
| V | 91 | PPM | XRF | |
| GA | 18 | PPM | XRF | |
| CU | 4 | PPM | XRF | |
| ZN | 63 | PPM | XRF | |
| ZR | 208 | PPM | XRF | |
| NB | 19 | PPM | XRF | |
| BA | 1108 | PPM | XRF | |
| RB | 126 | PPM | XRF | |
| SR | 509 | PPM | XRF | |
| PB | 16 | PPM | XRF | |
| TH | 14 | PPM | XRF | |
| Y | 23 | PPM | XRF | |
| LA | 43 | PPM | XRF | |
| CE | 79 | PPM | XRF |