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Sample B74-4
NavDat sample number 5251 · ANDESITE
Sample
| Sample ID | B74-4 |
|---|
| Rock name | ANDESITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | INTERMEDIATE |
|---|
| Material | IGNEOUS |
|---|
Location
| Latitude | 35.978 |
|---|
| Longitude | -117.623 |
|---|
| State / province | California |
|---|
| Volcanic field | Coso |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 1.75 |
|
1.575 |
1.925 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 56.22 | | WT% | XRF |
| TIO2 | 1.39 | | WT% | XRF |
| AL2O3 | 17.05 | | WT% | XRF |
| FE2O3 | 1.91 | | WT% | XRF |
| FEO | 5.14 | | WT% | XRF |
| MNO | 0.11 | | WT% | XRF |
| MGO | 4.49 | | WT% | AAS |
| CAO | 6.6 | | WT% | XRF |
| NA2O | 3.75 | | WT% | AAS |
| K2O | 2.2 | | WT% | XRF |
| P2O5 | 0.41 | | WT% | UNKNOWN |
| RB | 25 | | PPM | XRF |
| SR | 377 | | PPM | XRF |
