Sample 97-LT-87
NavDat sample number 130828 · ANDESITE
Sample
| Sample ID | 97-LT-87 |
|---|---|
| Rock name | ANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Collected by | Cousens and others |
| Comment | biotite hornblende andesite |
Location
| Latitude | 39.4725 |
|---|---|
| Longitude | -120.04 |
| Location | Verdi Peak |
| State / province | California |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 14 | 1 | 28 |
Analyses
Whole Rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 58.66 | WT% | XRF | |
| TIO2 | 0.67 | WT% | XRF | |
| AL2O3 | 17.29 | WT% | XRF | |
| FE2O3 | 6.78 | WT% | XRF | |
| MNO | 0.1097 | WT% | XRF | |
| MGO | 3.318 | WT% | XRF | |
| CAO | 6.467 | WT% | XRF | |
| NA2O | 3.21 | WT% | XRF | |
| K2O | 2.282 | WT% | XRF | |
| P2O5 | 0.189 | WT% | XRF | |
| LOI | 0.9 | WT% | XRF | |
| V | 171 | PPM | XRF | |
| CR | 54 | PPM | XRF | |
| NI | 17 | PPM | XRF | |
| RB | 61 | PPM | XRF | |
| SR | 611 | PPM | XRF | |
| Y | 21 | PPM | XRF | |
| ZR | 148 | PPM | XRF | |
| BA | 948 | PPM | XRF | |
| LA | 20.78 | PPM | ICPMS | |
| ND | 20.75 | PPM | ICPMS | |
| YB | 1.84 | PPM | ICPMS | |
| NB | 8 | PPM | ICPMS | |
| CS | 1.92 | PPM | ICPMS | |
| HF | 4.16 | PPM | ICPMS | |
| TH | 7.43 | PPM | ICPMS | |
| CE | 40.95 | PPM | UNKNOWN | |
| PR | 5.35 | PPM | UNKNOWN | |
| TA | 0.41 | PPM | UNKNOWN | |
| SM | 4.14 | PPM | UNKNOWN | |
| EU | 0.96 | PPM | UNKNOWN | |
| GD | 3.48 | PPM | UNKNOWN | |
| TB | 0.5 | PPM | UNKNOWN | |
| DY | 3.29 | PPM | UNKNOWN | |
| HO | 0.66 | PPM | UNKNOWN | |
| ER | 1.94 | PPM | UNKNOWN | |
| TM | 0.28 | PPM | UNKNOWN | |
| LU | 0.3 | PPM | UNKNOWN | |
| NB | 5.55 | PPM | UNKNOWN | |
| U | 3.11 | PPM | UNKNOWN | |
| CO | 17 | PPM | UNKNOWN | |
| ZN | 81 | PPM | UNKNOWN | |
| SR87_SR86 | 0.70486 | UNKNOWN | ||
| ND143_ND144 | 0.512655 | UNKNOWN | ||
| PB208_PB204 | 38.738 | UNKNOWN | ||
| PB207_PB204 | 15.638 | UNKNOWN | ||
| PB206_PB204 | 19.028 | UNKNOWN |
References
- Cousens, Brian; Prytulak, Julie; Henry, Christopher; Alcazar, Al; Brownrigg, Tim (2008) Geology, geochronology, and geochemistry of the Miocene-Pliocene ancestral Cascades Arc, northern Sierra Nevada, California and Nevada;the roles of the upper mantle, subducting slab, and the Sierra Nevadalithosphere. Geosphere, vol. 4, no. 5, pp.829-853, Oct 2008 doi:10.1130/GES00166.1