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Sample S-6
NavDat sample number 7170 · RHYODACITE
Sample
| Sample ID | S-6 |
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| Rock name | RHYODACITE |
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| Rock type | VOLCANIC |
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| Composition | FELSIC |
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| Material | IGNEOUS |
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| Collected by | H.F. Bonham, Nevada Bureau of Mines and Geology, and M.L. Silberman, U.S. Geological Survey. |
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| Comment | Rhyodacite ash-flow tuff, tuff of Coyote Spring. Dark gray to brown rhyodacite tuff. Two cooling units, lower cooling unit poorly welded and glassy, 20% phenocrysts of which 80% are plagioclase, biotite 10%, sanidine 5-10%, lithics 5%. |
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Location
| Latitude | 39.7625 |
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| Longitude | -119.568 |
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| Location | Washoe Co., NV |
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| State / province | Nevada |
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Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 27.6 |
|
26.8 |
28.4 |
|
C.L. Connor and M.L. Silberman, U.S. Geological Survey. |
Analyses
No chemical analyses are stored for this sample.
