← Search
Sample YU-PZA326a
NavDat sample number 2962 · DACITE
Sample
| Sample ID | YU-PZA326a |
|---|
| Rock name | DACITE |
|---|
| Rock type | PLUTONIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
| Collected by | Pansze, Arthur J |
|---|
| Comment | green, fine-grained; 50% phenocrysts of sanidine, quartz, biotite chloritized, hornblende chloritized, and plagioclase slightly altered to calcite and sericite in felsitic groundmass |
|---|
Location
| Latitude | 43.009 |
|---|
| Longitude | -116.698 |
|---|
| Location | from dike S of Oro Fino Mine, War Eagle Mtn, Owyhee County |
|---|
| State / province | Idaho |
|---|
| Volcanic field | dacite porphyry dike |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 28.2 |
|
27.7 |
28.7 |
|
|
Analyses
No chemical analyses are stored for this sample.
