Sample JH640
NavDat sample number 37521 · ANDESITE
Sample
| Sample ID | JH640 |
|---|---|
| Rock name | ANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Comment | plagioclase microlites in mottled matrix and numerous glomerocrysts consisting of plagioclase and cpx |
Location
| Latitude | 43.3278 |
|---|---|
| Longitude | -111.189 |
| Location | outcrop SE of E abutment of Palisades Dam |
| State / province | Idaho |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 6.3 | 6.1 | 6.5 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 63.27 | WT% | XRF | |
| AL2O3 | 16.85 | WT% | XRF | |
| TIO2 | 0.649 | WT% | XRF | |
| FEOT | 5.39 | WT% | XRF | |
| MNO | 0.083 | WT% | XRF | |
| CAO | 5.75 | WT% | XRF | |
| MGO | 2.7 | WT% | XRF | |
| K2O | 1.48 | WT% | XRF | |
| NA2O | 3.73 | WT% | XRF | |
| P2O5 | 0.181 | WT% | XRF | |
| NI | 21 | PPM | XRF | |
| CR | 56 | PPM | XRF | |
| SC | 16 | PPM | XRF | |
| V | 98 | PPM | XRF | |
| BA | 768 | PPM | XRF | |
| RB | 24 | PPM | XRF | |
| SR | 289 | PPM | XRF | |
| ZR | 176 | PPM | XRF | |
| Y | 28 | PPM | XRF | |
| NB | 10.7 | PPM | XRF | |
| GA | 23 | PPM | XRF | |
| CU | 15 | PPM | XRF | |
| ZN | 68 | PPM | XRF | |
| PB | 9 | PPM | XRF | |
| LA | 101 | PPM | XRF | |
| CE | 61 | PPM | XRF | |
| TH | 4 | PPM | XRF |