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Sample 1-74
NavDat sample number 4739 · MONZONITE
Sample
| Sample ID | 1-74 |
|---|
| Rock name | MONZONITE |
|---|
| Rock type | PLUTONIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
| Comment | abundant phenocrysts of plagioclase and sometimes anorthoclase; aphanitic groundmass that is microgranular and contains orthoclase and quartz |
|---|
Location
| Latitude | 44.3597 |
|---|
| Longitude | -103.803 |
|---|
| State / province | South Dakota |
|---|
| Volcanic field | Black Hill Tertiary igneous province |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 47 |
|
40 |
55 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| AL2O3 | 13.79 | | WT% | NAA |
| FE2O3 | 0.9524 | | WT% | NAA |
| MGO | 2.9844 | | WT% | NAA |
| CAO | 1.5034 | | WT% | NAA |
| NA2O | 1.3737 | | WT% | NAA |
| TIO2 | 0.3879 | | WT% | NAA |
| MNO | 6.1142 | | WT% | NAA |
| BA | 618.43 | | PPM | NAA |
| CE | 95.1836 | | PPM | NAA |
| CO | 5.3502 | | PPM | NAA |
| CR | 35.8109 | | PPM | NAA |
| CS | 3.3332 | | PPM | NAA |
| EU | 2.1077 | | PPM | NAA |
| HF | 4.9714 | | PPM | NAA |
| LA | 3.884 | | PPM | NAA |
| LU | 0.2834 | | PPM | NAA |
| RB | 137.893 | | PPM | NAA |
| SB | 0.4959 | | PPM | NAA |
| SC | 4.5041 | | PPM | NAA |
| SM | 6.612 | | PPM | NAA |
| TA | 1.0391 | | PPM | NAA |
| TH | 16.3949 | | PPM | NAA |
| V | 47.9722 | | PPM | NAA |
| YB | 43.9033 | | PPM | NAA |
