Sample 95ID-31C
NavDat sample number 38679
Sample
| Sample ID | 95ID-31C |
|---|---|
| Rock type | VOLCANIC |
| Material | IGNEOUS |
| Comment | fine grained porphyritic with phenos of plag, amph, pyroxene, and opaques; groundmass contains significant secondary carbonate |
Location
| Latitude | 44.5733 |
|---|---|
| Longitude | -114.307 |
| Location | Challis Creek; same locality as 95ID-31A and 31C |
| State / province | Idaho |
| Volcanic field | Tl of main effusive phase, Challis Volcanic Group |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 49 | 48 | 50 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 59.83 | WT% | XRF | |
| TIO2 | 0.95 | WT% | XRF | |
| AL2O3 | 15.53 | WT% | XRF | |
| FEOT | 6.08 | WT% | XRF | |
| MNO | 0.15 | WT% | XRF | |
| MGO | 2.69 | WT% | XRF | |
| CAO | 8.43 | WT% | XRF | |
| NA2O | 3.19 | WT% | XRF | |
| K2O | 2.84 | WT% | XRF | |
| P2O5 | 0.32 | WT% | XRF | |
| LOI | 6.13 | WT% | XRF | |
| TOTAL | 100 | WT% | XRF | |
| NI | 3 | PPM | XRF | |
| CR | 73 | PPM | XRF | |
| SC | 23 | PPM | XRF | |
| V | 152 | PPM | XRF | |
| GA | 19 | PPM | XRF | |
| CU | 2 | PPM | XRF | |
| ZN | 79 | PPM | XRF | |
| ZR | 226 | PPM | XRF | |
| NB | 21.1 | PPM | XRF | |
| BA | 1095 | PPM | XRF | |
| RB | 70 | PPM | XRF | |
| SR | 677 | PPM | XRF | |
| PB | 13 | PPM | XRF | |
| TH | 10 | PPM | XRF | |
| Y | 25 | PPM | XRF | |
| LA | 50 | PPM | XRF | |
| CE | 88 | PPM | XRF |