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Sample L-1024
NavDat sample number 3870 · MONZONITE
Sample
| Sample ID | L-1024 |
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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 quartz, microcline inclusions of plagioclase and biotite, and biotite; groundmass of plagioclase quartz, orthoclase, biotite some chloritization, hornblende |
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Location
| Latitude | 45.9942 |
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| Longitude | -112.652 |
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| Location | along forest service road 3.2 miles E of US Route 91 and 11 miles south of US Route 10 Road numerical designations may be different as of 2005 |
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| State / province | Montana |
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| Volcanic field | Boulder batholith |
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Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 71 |
|
68.9 |
73.1 |
|
|
Analyses
No chemical analyses are stored for this sample.
