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Sample SIE-1
NavDat sample number 7152 · TUFF
Sample
| Sample ID | SIE-1 |
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| Rock name | TUFF |
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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 R.P. Ashley and M.L. Silberman, U.S. Geological Survey. |
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| Comment | Air-fall tuff in the Siebert Formation. K-Ar age for the sanidine is too old, based on other dates and geologic considerations. This erroneous age is probably due to contamination of the sample by older accidental sanidine crystals. The biotite determination appears to be a more reasonable age. |
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Location
| Latitude | 38.0581 |
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| Longitude | -117.249 |
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| Location | Esmeralda Co., NV |
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| State / province | Nevada |
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Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
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| 20 |
|
19.6 |
20.4 |
|
M.L. Silberman, U.S. Geological Survey. |
Analyses
No chemical analyses are stored for this sample.
