← Search
Sample LC81-849
NavDat sample number 19972 · ANDESITE
Sample
| Sample ID | LC81-849 |
|---|
| Rock name | ANDESITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | INTERMEDIATE |
|---|
| Material | IGNEOUS |
Location
| Latitude | 40.6317 |
|---|
| Longitude | -121.377 |
|---|
| Location | Lassen phase, hybrid lavas |
|---|
| State / province | California |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
| 0.15 |
|
0 |
0.3 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
| SIO2 | 57.47 | | WT% | XRF |
| AL2O3 | 17.07 | | WT% | XRF |
| FE2O3 | 1.41 | | WT% | XRF |
| FEO | 5.07 | | WT% | XRF |
| MGO | 5.12 | | WT% | XRF |
| CAO | 8.16 | | WT% | XRF |
| NA2O | 3.38 | | WT% | XRF |
| K2O | 1.2 | | WT% | XRF |
| TIO2 | 0.82 | | WT% | XRF |
| P2O5 | 0.15 | | WT% | XRF |
| MNO | 0.11 | | WT% | XRF |
| RB | 32 | | PPM | XRF |
| SR | 376 | | PPM | XRF |
| BA | 407 | | PPM | XRF |
| Y | 18 | | PPM | XRF |
| ZR | 114 | | PPM | XRF |
| NB | 2 | | PPM | XRF |
| CO | 24.3 | | PPM | XRF |
| CR | 117 | | PPM | XRF |
| CS | 1.3 | | PPM | XRF |
| HF | 2.6 | | PPM | XRF |
| TA | 0.39 | | PPM | XRF |
| TH | 4 | | PPM | XRF |
| U | 0.7 | | PPM | XRF |
| SC | 23.3 | | PPM | XRF |
| LA | 13 | | PPM | XRF |
| SM | 3.18 | | PPM | XRF |
| EU | 0.88 | | PPM | XRF |
| YB | 2 | | PPM | XRF |
| PB | 4 | | PPM | XRF |
| SR87_SR86 | 0.70415 | | | MS |
| PB206_PB204 | 18.941 | | | MS |
| PB207_PB204 | 15.615 | | | MS |
| PB208_PB204 | 38.622 | | | MS |
| TOTAL | 100 | | 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