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Sample LC86-955
NavDat sample number 19971 · RHYODACITE
Sample
| Sample ID | LC86-955 |
|---|
| Rock name | RHYODACITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
Location
| Latitude | 40.4972 |
|---|
| Longitude | -121.488 |
|---|
| Location | Lassen phase, Loomis sequence |
|---|
| State / province | California |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 0.05 |
|
0 |
0.1 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 68.71 | | WT% | XRF |
| AL2O3 | 15.54 | | WT% | XRF |
| FE2O3 | 0.65 | | WT% | XRF |
| FEO | 2.35 | | WT% | XRF |
| MGO | 1.56 | | WT% | XRF |
| CAO | 3.64 | | WT% | XRF |
| NA2O | 4.23 | | WT% | XRF |
| K2O | 2.66 | | WT% | XRF |
| TIO2 | 0.45 | | WT% | XRF |
| P2O5 | 0.14 | | WT% | XRF |
| MNO | 0.06 | | WT% | XRF |
| RB | 73 | | PPM | XRF |
| SR | 348 | | PPM | XRF |
| BA | 717 | | PPM | XRF |
| Y | 16 | | PPM | XRF |
| ZR | 133 | | PPM | XRF |
| NB | 9 | | PPM | XRF |
| PB | 10.8 | | PPM | XRF |
| SR87_SR86 | 0.70411 | | | MS |
| PB206_PB204 | 18.958 | | | MS |
| PB207_PB204 | 15.612 | | | MS |
| PB208_PB204 | 38.63 | | | MS |
| ND143_ND144 | 0.512796 | | | MS |
| TOTAL | 99.87 | | WT% | XRF |
References
- Muffler, L J Patrick (prefacer) (1990) Stratigraphic, lithologic, and major element geochemical constraintson magmatic evolution at Lassen volcanic center, California. Journal of Geophysical Research, vol.95, no.B12, pp.19,651-19,669, 10Nov 1990
