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Sample Black Balls
NavDat sample number 4150 · NOT-GIVEN
Sample
| Sample ID | Black Balls |
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| Rock name | NOT-GIVEN |
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| Rock type | VOLCANIC |
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| Material | IGNEOUS |
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| Collected by | M.L. Silberman, U.S. Geological Survey |
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| Comment | Black obsidian occurring as glassy round cores in perlite. The perlite formed as balls 1 to 3 inches 3 to 10 cm in diameter and probably resulted from emplacement of a rhyolite plug in wet lake sediments. |
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Location
| Latitude | 38.2314 |
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| Longitude | -117.606 |
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| Location | Esmeralda County, NV |
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| State / province | Nevada |
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Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 7.2 |
|
7 |
7.4 |
|
M.L. Silberman, U.S. Geological Survey |
Analyses
No chemical analyses are stored for this sample.
