← Search
Sample JH6
NavDat sample number 37525 · DACITE
Sample
| Sample ID | JH6 |
|---|
| Rock name | DACITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
| Comment | plagioclase phenocrysts along with hypersthene; groundmass ranges from nearly holocrystalline comprised of small plagioclase laths to nearly holohyaline comprised of dark brown glass; disequilibrium features similar to the trachyandesites |
|---|
Location
| Latitude | 43.5308 |
|---|
| Longitude | -110.787 |
|---|
| Location | top of prominent outcrop NE shoulder of West Gros Ventre Butte |
|---|
| State / province | Wyoming |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 6 |
|
3 |
10 |
|
|
