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Sample UE18T-993.8
NavDat sample number 85557
Sample
| Sample ID | UE18T-993.8 |
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| Material | notfound |
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| Comment | Sample is moderate brown devitrified moderately welded tuff with scarce to common white to pinkish gray spherulitic pumice to 8 mm. Subparallel fractures separated by 30 mm intersect core at 45 degrees to bound the core piece; lenses of brownish black manganese oxides coat both fractures and fill tight associated fractures up to 5 mm from major fracture. Common felsic phenocrysts are mostly feldspar to 1.5 mm, some partly altered, probably representing plagioclase; quartz is also evident. Slightly to moderately bronzy biotite to 3 mm is common to abundant and yellow green pseudomorphic pyroxene to 1 mm is scarce. Lithics to 12 mm are scarce. |
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Location
| Latitude | 37.1263 |
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| Longitude | -116.329 |
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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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| 11.46 |
|
11.465 |
11.455 |
|
|
Analyses
No chemical analyses are stored for this sample.
