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Sample YAD-3
NavDat sample number 12139 · ANDESITE
Sample
| Sample ID | YAD-3 |
|---|
| Rock name | ANDESITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | INTERMEDIATE |
|---|
| Material | IGNEOUS |
|---|
| Comment | Dark gray, sparsely microporphyritic with olivine and calcic plagioclase phenocrysts set in mainly intergranular and weakly diktytaxitic groundmass |
|---|
Location
| Latitude | 40.6183 |
|---|
| Longitude | -120.627 |
|---|
| State / province | California |
|---|
| Volcanic field | Walker Lane |
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Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 2.5 |
|
2.3 |
2.7 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| K2O | 1.117 | | WT% | UNKNOWN |
