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Sample YAD-1
NavDat sample number 12138 · ANDESITE
Sample
| Sample ID | YAD-1 |
|---|
| Rock name | ANDESITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | INTERMEDIATE |
|---|
| Material | IGNEOUS |
|---|
| Comment | Light brown and gray, sparsely finely porphyritic with olivine and hypersthene phenocrysts in pilotaxitic flow banded matirx, strong platey jointing |
Location
| Latitude | 40.6 |
|---|
| Longitude | -120.642 |
|---|
| State / province | California |
|---|
| Volcanic field | Walker Lane |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
| 3.1 |
|
3 |
3.2 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
| K2O | 2.344 | | WT% | UNKNOWN |