← Search
Sample KA1912
NavDat sample number 3017 · PYROCLASTIC-FALL
Sample
| Sample ID | KA1912 |
|---|
| Rock name | PYROCLASTIC-FALL |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
| Collected by | C.K. Gilbert, M.N. Christensen, Y. Al-Rawi, and K.R. LaJoie, Univ. Calif. Berkeley |
|---|
| Comment | The last three samples are in stratigraphic order with no. 36 being the youngest. The preceeding 9 samples nos. 30 through 38 are a complex of young, alkaline volcanic rocks ranging from 3.6 to 0.25 m.y. in age and consist of sub-alkaline olivine basalt, basaltic andesite, andesite, dacite and rhyolite in the Mono Basin area, from an earlier calk-alkaline volcanic suite to one of alkali-calcic or alkaline nature Kleinhampl and others, in press. Their estimated volume is 30 km^3 Gilbert and others, 1968. |
|---|
Location
| Latitude | 38.1783 |
|---|
| Longitude | -118.82 |
|---|
| Location | Aurora-Cedar Hill-Trench Canyon Alkali Valley Area |
|---|
| State / province | Nevada |
|---|
| Formation | Of Cedar Hill |
|---|
| Location comment | Mineral County, NV |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 2.8 |
|
2.6 |
3 |
|
|
Analyses
No chemical analyses are stored for this sample.
