← Search
Sample R-3502
NavDat sample number 5542 · ANDESITE
Sample
| Sample ID | R-3502 |
|---|
| Rock name | ANDESITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | INTERMEDIATE |
|---|
| Material | IGNEOUS |
|---|
| Collected by | C.E. Chapin |
|---|
| Comment | black, porphyritic basaltic andesite with 20% phenocrysts of calcic plagioclase and cpx |
|---|
Location
| Latitude | 38.5403 |
|---|
| Longitude | -105.984 |
|---|
| Location | outcrop in first large gully SE of Tenderfoot Hill Spiral Drive on E side of Salida; Chaffee County |
|---|
| State / province | Colorado |
|---|
| Volcanic field | 39 Mile Volcanic Field |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 35.2 |
|
33.7 |
36.7 |
|
|
Analyses
No chemical analyses are stored for this sample.
