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Sample 78C11
NavDat sample number 6713 · ANDESITE
Sample
| Sample ID | 78C11 |
|---|
| 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.G. Luedke, 1978 |
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| Comment | medium-gray slightly porphyritic rock containing small feldspar phenocrysts in a dense holocrystalline groundmass |
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Location
| Latitude | 41.8014 |
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| Longitude | -121.843 |
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| Location | Siskiyou Co., CA |
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| State / province | California |
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| Location comment | Collected within a road-metal quarry in faulted ? flank flows on the west side of Sheep Mountain shield volcano. |
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Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 1.2 |
|
1.13 |
1.27 |
|
|
Analyses
No chemical analyses are stored for this sample.
