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Sample L-1113
NavDat sample number 3854 · MONZONITE
Sample
| Sample ID | L-1113 |
|---|
| 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, biotite, orthoclase in groundmass of quartz, seritic orthoclase, and biotite |
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Location
| Latitude | 44.3239 |
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| Longitude | -103.544 |
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| Location | along SD Route 135, 6 miles SW of Sturgis |
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| State / province | South Dakota |
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| Volcanic field | Vannocker laccolith |
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Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 57.3 |
|
55.6 |
59 |
|
|
Analyses
No chemical analyses are stored for this sample.
