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Sample L-972
NavDat sample number 3900 · MONZONITE
Sample
| Sample ID | L-972 |
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| Rock name | MONZONITE |
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| Rock type | PLUTONIC |
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| Composition | FELSIC |
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| Material | IGNEOUS |
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| Collected by | author |
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| Comment | phenocrysts of plagioclase local sericitization, hornblende completely altered to biotite, chlorite, quartz, etc. - occasionally a well preserved grain; groundmass of very fine chlorite, sericite, magnetite |
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Location
| Latitude | 38.5219 |
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| Longitude | -112.368 |
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| Location | along US Route 89 about 4 miles N of Marysvale, Piute County; *WARNING: T and R coordinates given do not seem to match descriptive locality information* |
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| State / province | Utah |
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| Volcanic field | porphyritic monzonite dike |
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Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
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| 30.8 |
|
27.8 |
33.8 |
|
|
Analyses
No chemical analyses are stored for this sample.
