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Sample UE18T-1237.4
NavDat sample number 85550 · PYROCLASTIC-FLOW
Sample
| Sample ID | UE18T-1237.4 |
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| Rock name | PYROCLASTIC-FLOW |
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| Rock type | VOLCANIC |
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| Composition | FELSIC |
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| Material | IGNEOUS |
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| Comment | Sample of core is pale brown devitrified moderately welded tuff with scarce pale brown to grayish orange pink pumice to 5 mm. Very pale yellowish brown to very pale orange medium grained calcite uniformly coats a fracture that intersects core at 15 degrees to core axis to form a 15 to 30 mm by 40 mm trapezoidal face. Common to abundant felsic phenocrysts include feldspar and very conspicuous quartz, both to 2 mm. Black biotite to 1 mm is scarce. No lithics were observed. |
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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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| 11.468 |
|
11.47 |
11.465 |
|
|
Analyses
No chemical analyses are stored for this sample.
