Sample 97-LT-48
NavDat sample number 130817 · ANDESITE
Sample
| Sample ID | 97-LT-48 |
|---|---|
| Rock name | ANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Collected by | Cousens and others |
| Comment | pyroxene andesite |
Location
| Latitude | 39.2372 |
|---|---|
| Longitude | -120.089 |
| 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 | 55.72 | WT% | XRF | |
| TIO2 | 0.733 | WT% | XRF | |
| AL2O3 | 17.94 | WT% | XRF | |
| FE2O3 | 7.568 | WT% | XRF | |
| MNO | 0.1451 | WT% | XRF | |
| MGO | 4.785 | WT% | XRF | |
| CAO | 7.815 | WT% | XRF | |
| NA2O | 3.3 | WT% | XRF | |
| K2O | 1.279 | WT% | XRF | |
| P2O5 | 0.232 | WT% | XRF | |
| LOI | 0.5 | WT% | XRF | |
| V | 183 | PPM | XRF | |
| CR | 79 | PPM | XRF | |
| NI | 35 | PPM | XRF | |
| RB | 26 | PPM | XRF | |
| SR | 642 | PPM | XRF | |
| Y | 18 | PPM | XRF | |
| ZR | 117 | PPM | XRF | |
| BA | 745 | PPM | XRF | |
| LA | 18.93 | PPM | ICPMS | |
| ND | 19.22 | PPM | ICPMS | |
| YB | 1.62 | PPM | ICPMS | |
| NB | 8 | PPM | ICPMS | |
| CS | 0.86 | PPM | ICPMS | |
| HF | 2.86 | PPM | ICPMS | |
| TH | 2.67 | PPM | ICPMS | |
| CE | 36.17 | PPM | UNKNOWN | |
| PR | 4.85 | PPM | UNKNOWN | |
| TA | 0.34 | PPM | UNKNOWN | |
| SM | 3.8 | PPM | UNKNOWN | |
| EU | 1.02 | PPM | UNKNOWN | |
| GD | 3.28 | PPM | UNKNOWN | |
| TB | 0.46 | PPM | UNKNOWN | |
| DY | 3 | PPM | UNKNOWN | |
| HO | 0.59 | PPM | UNKNOWN | |
| ER | 1.76 | PPM | UNKNOWN | |
| TM | 0.24 | PPM | UNKNOWN | |
| LU | 0.26 | PPM | UNKNOWN | |
| NB | 5.19 | PPM | UNKNOWN | |
| U | 0.93 | PPM | UNKNOWN | |
| CO | 23 | PPM | UNKNOWN | |
| ZN | 87 | PPM | UNKNOWN | |
| SR87_SR86 | 0.705258 | UNKNOWN | ||
| ND143_ND144 | 0.512598 | UNKNOWN | ||
| PB208_PB204 | 38.67 | UNKNOWN | ||
| PB207_PB204 | 15.628 | UNKNOWN | ||
| PB206_PB204 | 18.96 | 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