Sample 97-LT-34
NavDat sample number 130815 · ANDESITE
Sample
| Sample ID | 97-LT-34 |
|---|---|
| Rock name | ANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Collected by | Cousens and others |
| Comment | pyroxene andesite |
Location
| Latitude | 39.3562 |
|---|---|
| Longitude | -120.204 |
| Location | Alder Hill |
| 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 | 57.85 | WT% | XRF | |
| TIO2 | 0.608 | WT% | XRF | |
| AL2O3 | 18.17 | WT% | XRF | |
| FE2O3 | 6.599 | WT% | XRF | |
| MNO | 0.1218 | WT% | XRF | |
| MGO | 2.973 | WT% | XRF | |
| CAO | 6.674 | WT% | XRF | |
| NA2O | 3.4 | WT% | XRF | |
| K2O | 1.569 | WT% | XRF | |
| P2O5 | 0.237 | WT% | XRF | |
| LOI | 1.3 | WT% | XRF | |
| V | 138 | PPM | XRF | |
| CR | 14 | PPM | XRF | |
| NI | 8 | PPM | XRF | |
| RB | 37 | PPM | XRF | |
| SR | 690 | PPM | XRF | |
| Y | 20 | PPM | XRF | |
| ZR | 119 | PPM | XRF | |
| BA | 931 | PPM | XRF | |
| LA | 19.36 | PPM | ICPMS | |
| ND | 20.01 | PPM | ICPMS | |
| YB | 1.82 | PPM | ICPMS | |
| NB | 7 | PPM | ICPMS | |
| CS | 1.22 | PPM | ICPMS | |
| HF | 2.99 | PPM | ICPMS | |
| TH | 2.52 | PPM | ICPMS | |
| CE | 38.67 | PPM | UNKNOWN | |
| PR | 4.94 | PPM | UNKNOWN | |
| TA | 0.34 | PPM | UNKNOWN | |
| SM | 3.99 | PPM | UNKNOWN | |
| EU | 1.1 | PPM | UNKNOWN | |
| GD | 3.52 | PPM | UNKNOWN | |
| TB | 0.51 | PPM | UNKNOWN | |
| DY | 3.27 | PPM | UNKNOWN | |
| HO | 0.63 | PPM | UNKNOWN | |
| ER | 1.93 | PPM | UNKNOWN | |
| TM | 0.28 | PPM | UNKNOWN | |
| LU | 0.3 | PPM | UNKNOWN | |
| NB | 5.32 | PPM | UNKNOWN | |
| U | 0.97 | PPM | UNKNOWN | |
| CO | 14 | PPM | UNKNOWN | |
| ZN | 90 | PPM | UNKNOWN | |
| SR87_SR86 | 0.705344 | UNKNOWN | ||
| ND143_ND144 | 0.512578 | UNKNOWN | ||
| PB208_PB204 | 38.658 | UNKNOWN | ||
| PB207_PB204 | 15.613 | UNKNOWN | ||
| PB206_PB204 | 18.952 | 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