Sample 97-LT-49
NavDat sample number 130818 · ANDESITE
Sample
| Sample ID | 97-LT-49 |
|---|---|
| Rock name | ANDESITE |
| Rock type | VOLCANIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
| Collected by | Cousens and others |
| Comment | hornblende andesite |
Location
| Latitude | 39.2375 |
|---|---|
| Longitude | -120.087 |
| 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 | 59.37 | WT% | XRF | |
| TIO2 | 0.717 | WT% | XRF | |
| AL2O3 | 18.16 | WT% | XRF | |
| FE2O3 | 5.561 | WT% | XRF | |
| MNO | 0.1072 | WT% | XRF | |
| MGO | 2.598 | WT% | XRF | |
| CAO | 5.533 | WT% | XRF | |
| NA2O | 3.7 | WT% | XRF | |
| K2O | 2.684 | WT% | XRF | |
| P2O5 | 0.282 | WT% | XRF | |
| LOI | 0.6 | WT% | XRF | |
| V | 122 | PPM | XRF | |
| CR | 18 | PPM | XRF | |
| NI | 9 | PPM | XRF | |
| RB | 64 | PPM | XRF | |
| SR | 694 | PPM | XRF | |
| Y | 24 | PPM | XRF | |
| ZR | 213 | PPM | XRF | |
| BA | 1521 | PPM | XRF | |
| LA | 38.65 | PPM | ICPMS | |
| ND | 33.16 | PPM | ICPMS | |
| YB | 1.9 | PPM | ICPMS | |
| NB | 14 | PPM | ICPMS | |
| CS | 2.23 | PPM | ICPMS | |
| HF | 5.51 | PPM | ICPMS | |
| TH | 10.21 | PPM | ICPMS | |
| CE | 74.54 | PPM | UNKNOWN | |
| PR | 8.98 | PPM | UNKNOWN | |
| TA | 0.58 | PPM | UNKNOWN | |
| SM | 5.92 | PPM | UNKNOWN | |
| EU | 1.3 | PPM | UNKNOWN | |
| GD | 4.27 | PPM | UNKNOWN | |
| TB | 0.6 | PPM | UNKNOWN | |
| DY | 3.66 | PPM | UNKNOWN | |
| HO | 0.69 | PPM | UNKNOWN | |
| ER | 2.08 | PPM | UNKNOWN | |
| TM | 0.29 | PPM | UNKNOWN | |
| LU | 0.3 | PPM | UNKNOWN | |
| NB | 9.54 | PPM | UNKNOWN | |
| U | 2.78 | PPM | UNKNOWN | |
| CO | 12 | PPM | UNKNOWN | |
| ZN | 78 | PPM | UNKNOWN | |
| SR87_SR86 | 0.705453 | UNKNOWN | ||
| ND143_ND144 | 0.512576 | UNKNOWN | ||
| PB208_PB204 | 38.75 | UNKNOWN | ||
| PB207_PB204 | 15.634 | UNKNOWN | ||
| PB206_PB204 | 19.031 | 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