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Sample USGSM-BH16
NavDat sample number 2897 · DACITE
Sample
| Sample ID | USGSM-BH16 |
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| Rock name | DACITE |
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| Rock type | VOLCANIC |
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| Composition | FELSIC |
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| Material | IGNEOUS |
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| Comment | Light-gray porphyritic dacite with phenocrysts of plagioclase, biotite, and hornblende in a fine-grained groundmass. The hornblendes are largely oxidized. This sample and sample USGSM-BH26 are from the lower flow unit or andesite of the Silver Hill Volcanic Series. |
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Location
| Latitude | 38.2019 |
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| Longitude | -118.997 |
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| Location | Mono County, CA |
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| State / province | California |
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| Volcanic field | Bodie Mining District and Bodie Hills Volcanic Field |
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| Location comment | 2000 ft E of Red Cloud shaft |
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Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
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| 9.7 |
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9.5 |
9.9 |
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Analyses
No chemical analyses are stored for this sample.
