← Search
Sample 3
NavDat sample number 67232 · RHYOLITE
Sample
| Sample ID | 3 |
|---|
| Rock name | RHYOLITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
| Collected by | H.F. Bonham, Nevada Bureau Mines & Geology |
|---|
| Comment | In the light of stratigraphic and structural relations and dates of other units the 22.3 m.y. age is unreasonable. The unit overlies the Idaho Canyon Tuff, which is considered by Noble and others 1970 to be about 15 m.y. old. Also see Bonham, 1969, p.15. |
|---|
Location
| Latitude | 41.9 |
|---|
| Longitude | -118.95 |
|---|
| Location | Thousand Creek Gorge, Humboldt County, NV |
|---|
| State / province | Nevada |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 22.9 |
|
21.1 |
24.7 |
|
J.D. Obradovich, U.S. Geological Survey |
Analyses
No chemical analyses are stored for this sample.
