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Sample YU-Aug1
NavDat sample number 2754 · ANDESITE
Sample
| Sample ID | YU-Aug1 |
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| Rock name | ANDESITE |
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| Rock type | VOLCANIC |
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| Composition | INTERMEDIATE |
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| Material | IGNEOUS |
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| Collected by | R. Speed, Northwestern University |
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| Comment | From porphyritic lava consisting of 70% plagioclase, 10% clinopyroxene, 5% brown hornblende, and 15% glass, and lying unconformably on Triassic rocks and below siliceous tuffs. |
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Location
| Latitude | 39.9464 |
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| Longitude | -117.577 |
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| Location | Augusta Mts, Churchill County, NV |
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| State / province | Nevada |
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| Location comment | Southern Augusta Mts. |
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Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 25 |
|
20 |
30 |
|
|
Analyses
No chemical analyses are stored for this sample.
