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Sample L-843
NavDat sample number 2774 · MONZONITE
Sample
| Sample ID | L-843 |
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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 | D. Dixon, Phelps Dodge Corp., and F.W. McDowell, Columbia Univ. |
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| Comment | slightly porphyritic; composed of plagioclase larger grains commonly zoned, orthoclase partially sericitized, quartz, biotite well formed, partially chloritized, hornblende? completely altered to chlorite and magnetite. |
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Location
| Latitude | 32.3582 |
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| Longitude | -112.87 |
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| Location | NW corner of Ajo open-pit copper mine, Pima County, AZ |
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| State / province | Arizona |
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Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
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| 63.8 |
|
61.9 |
65.7 |
|
|
Analyses
No chemical analyses are stored for this sample.
