← Search
Sample CAL7
NavDat sample number 54581 · TUFF
Sample
| Sample ID | CAL7 |
|---|
| Rock name | TUFF |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
| Comment | Calaveras County, California [SW 1/4, SW 1/4, SW 1/4, SE 1/4, Sec. 7, T5N, R12E] NW Corner of intersection of Highway 49 and 26. Fills channel cut in older tuff and basement. CAL 7 is basal vitrophyre from lowest part of channel. |
|---|
Location
| Latitude | 38.2983 |
|---|
| Longitude | -120.702 |
|---|
| State / province | California |
|---|
| Location comment | Tuff of Chili Gulch |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 19.91 |
|
19.21 |
20.61 |
|
|
