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Sample MQM-2
NavDat sample number 6727 · GRANODIORITE
Sample
| Sample ID | MQM-2 |
|---|
| Rock name | GRANODIORITE |
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| Rock type | PLUTONIC |
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| Composition | INTERMEDIATE |
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| Material | IGNEOUS |
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| Collected by | R. Methot |
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| Comment | medium grained porphyritic; phenocrysts and groundmass both have hypidiomorphic to idiomorphic habit; quartz, perthite, and plagioclase |
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Location
| Latitude | 45.5331 |
|---|
| Longitude | -111.768 |
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| State / province | Montana |
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| Volcanic field | Tobacco Root batholith |
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Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 73.2 |
|
71.2 |
75.2 |
|
|
Analyses
No chemical analyses are stored for this sample.
