Sample 95ID-66
NavDat sample number 38631 · ANDESITE
Sample
| Sample ID | 95ID-66 |
|---|---|
| Rock name | ANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Comment | fine grained porphyritic with phenos of cpx, oliv, opaques; significant glass component in g.m. |
Location
| Latitude | 44.17 |
|---|---|
| Longitude | -114.188 |
| Location | Road Creek |
| 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 | 57.15 | WT% | XRF | |
| TIO2 | 0.8 | WT% | XRF | |
| AL2O3 | 13.19 | WT% | XRF | |
| FEOT | 7.2 | WT% | XRF | |
| MNO | 0.14 | WT% | XRF | |
| MGO | 8.18 | WT% | XRF | |
| CAO | 7.25 | WT% | XRF | |
| NA2O | 2.84 | WT% | XRF | |
| K2O | 2.84 | WT% | XRF | |
| P2O5 | 0.41 | WT% | XRF | |
| LOI | 1.8 | WT% | XRF | |
| TOTAL | 100 | WT% | XRF | |
| NI | 109 | PPM | XRF | |
| CR | 501 | PPM | XRF | |
| SC | 41 | PPM | XRF | |
| V | 166 | PPM | XRF | |
| GA | 17 | PPM | XRF | |
| CU | 46 | PPM | XRF | |
| ZN | 74 | PPM | XRF | |
| BA | 1478 | PPM | ICPMS | |
| RB | 134.2 | PPM | ICPMS | |
| SR | 588 | PPM | ICPMS | |
| U | 3.21 | PPM | ICPMS | |
| PB | 16.27 | PPM | ICPMS | |
| CS | 6.56 | PPM | ICPMS | |
| TH | 10.2 | PPM | ICPMS | |
| ZR | 182 | PPM | XRF | |
| Y | 23.51 | PPM | ICPMS | |
| NB | 15.67 | PPM | XRF | |
| HF | 4.5 | PPM | ICPMS | |
| TA | 0.92 | PPM | ICPMS | |
| LA | 41.34 | PPM | ICPMS | |
| CE | 74.73 | PPM | ICPMS | |
| PR | 8.36 | PPM | ICPMS | |
| ND | 33.23 | PPM | ICPMS | |
| SM | 7.11 | PPM | ICPMS | |
| EU | 1.79 | PPM | ICPMS | |
| GD | 5.53 | PPM | ICPMS | |
| TB | 0.82 | PPM | ICPMS | |
| DY | 4.43 | PPM | ICPMS | |
| HO | 0.85 | PPM | ICPMS | |
| ER | 2.23 | PPM | ICPMS | |
| TM | 0.32 | PPM | ICPMS | |
| YB | 1.91 | PPM | ICPMS | |
| LU | 0.29 | PPM | ICPMS | |
| SR87_SR86 | 0.71022 | TIMS |