← Search
Sample L-949
NavDat sample number 3856 · SYENITE
Sample
| Sample ID | L-949 |
|---|
| Rock name | SYENITE |
|---|
| Rock type | PLUTONIC |
|---|
| Composition | INTERMEDIATE |
|---|
| Material | IGNEOUS |
|---|
| Collected by | author |
|---|
| Comment | phenocrysts of orthoclase, hornblende, aegirine-augite, biotite in orthoclase and sericite groundmass |
|---|
Location
| Latitude | 44.4758 |
|---|
| Longitude | -104.444 |
|---|
| Location | just south of observation tower on Bear Lodge Mountain |
|---|
| State / province | Wyoming |
|---|
| Volcanic field | Bear Lodge pluton |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 39.8 |
|
37.7 |
41.9 |
|
|
Analyses
No chemical analyses are stored for this sample.
