← Search
Sample DC-12
NavDat sample number 5148 · ANDESITE
Sample
| Sample ID | DC-12 |
|---|
| Rock name | ANDESITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | INTERMEDIATE |
|---|
| Material | IGNEOUS |
|---|
Location
| Latitude | 38.47 |
|---|
| Longitude | -119.767 |
|---|
| Location | Dardanelles |
|---|
| State / province | California |
|---|
| Location comment | Crestal Sierra Nevada |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 26.4 |
|
23.3 |
29.5 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 62.88 | | WT% | XRF |
| TIO2 | 0.62 | | WT% | XRF |
| AL2O3 | 17.7 | | WT% | XRF |
| FE2O3 | 4.76 | | WT% | XRF |
| FEO | 4.28 | | WT% | XRF |
| MNO | 0.07 | | WT% | XRF |
| MGO | 1.91 | | WT% | XRF |
| CAO | 5.36 | | WT% | XRF |
| NA2O | 4.13 | | WT% | XRF |
| K2O | 2.24 | | WT% | XRF |
| P2O5 | 0.25 | | WT% | XRF |
| LOI | 0.55 | | WT% | XRF |
| TOTAL | 99.92 | | WT% | XRF |
| RB | 34.7 | | PPM | XRF |
| SR | 1097 | | PPM | XRF |
| SR87_SR86 | 0.7062 | | | MS |
