Sample 97-LT-47
NavDat sample number 130816 · ANDESITE
Sample
| Sample ID | 97-LT-47 |
|---|---|
| Rock name | ANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Collected by | Cousens and others |
| Comment | hornblende andesite |
Location
| Latitude | 39.2507 |
|---|---|
| Longitude | -120.085 |
| Location | Brockway Summit |
| 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 | 60.91 | WT% | XRF | |
| TIO2 | 0.691 | WT% | XRF | |
| AL2O3 | 17.34 | WT% | XRF | |
| FE2O3 | 5.397 | WT% | XRF | |
| MNO | 0.1012 | WT% | XRF | |
| MGO | 2.038 | WT% | XRF | |
| CAO | 5.082 | WT% | XRF | |
| NA2O | 3.73 | WT% | XRF | |
| K2O | 2.911 | WT% | XRF | |
| P2O5 | 0.273 | WT% | XRF | |
| LOI | 1 | WT% | XRF | |
| V | 123 | PPM | XRF | |
| CR | 21 | PPM | XRF | |
| NI | 10 | PPM | XRF | |
| RB | 81 | PPM | XRF | |
| SR | 655 | PPM | XRF | |
| Y | 24 | PPM | XRF | |
| ZR | 216 | PPM | XRF | |
| BA | 1549 | PPM | XRF | |
| LA | 40.15 | PPM | ICPMS | |
| ND | 32.84 | PPM | ICPMS | |
| YB | 1.87 | PPM | ICPMS | |
| NB | 12 | PPM | ICPMS | |
| CS | 2.34 | PPM | ICPMS | |
| HF | 5.69 | PPM | ICPMS | |
| TH | 10.51 | PPM | ICPMS | |
| CE | 74.25 | PPM | UNKNOWN | |
| PR | 9.06 | PPM | UNKNOWN | |
| TA | 0.57 | PPM | UNKNOWN | |
| SM | 5.67 | PPM | UNKNOWN | |
| EU | 1.22 | PPM | UNKNOWN | |
| GD | 4.12 | PPM | UNKNOWN | |
| TB | 0.56 | PPM | UNKNOWN | |
| DY | 3.59 | PPM | UNKNOWN | |
| HO | 0.68 | PPM | UNKNOWN | |
| ER | 2.03 | PPM | UNKNOWN | |
| TM | 0.28 | PPM | UNKNOWN | |
| LU | 0.3 | PPM | UNKNOWN | |
| NB | 9.49 | PPM | UNKNOWN | |
| U | 3.28 | PPM | UNKNOWN | |
| CO | 9 | PPM | UNKNOWN | |
| ZN | 76 | PPM | UNKNOWN | |
| SR87_SR86 | 0.705505 | UNKNOWN | ||
| ND143_ND144 | 0.512575 | UNKNOWN | ||
| PB208_PB204 | 38.762 | UNKNOWN | ||
| PB207_PB204 | 15.64 | UNKNOWN | ||
| PB206_PB204 | 19.029 | UNKNOWN | ||
| D18O | 7.56 | PERMILL | 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