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Sample 1-55
NavDat sample number 4729 · MONZONITE
Sample
| Sample ID | 1-55 |
|---|
| 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 | 44.3226 |
|---|
| Longitude | -103.788 |
|---|
| 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 | 16.5236 | | WT% | NAA |
| FE2O3 | 0.5454 | | WT% | NAA |
| MGO | 1.9076 | | WT% | NAA |
| CAO | 0.8848 | | WT% | NAA |
| NA2O | 2.456 | | WT% | NAA |
| TIO2 | 0.3787 | | WT% | NAA |
| MNO | 0.0317 | | WT% | NAA |
| BA | 430.51 | | PPM | NAA |
| CE | 48.301 | | PPM | NAA |
| CO | 2.6545 | | PPM | NAA |
| CR | 14.445 | | PPM | NAA |
| CS | 2.4144 | | PPM | NAA |
| EU | 1.0487 | | PPM | NAA |
| HF | 3.828 | | PPM | NAA |
| LA | 17.6979 | | PPM | NAA |
| LU | 0.1413 | | PPM | NAA |
| RB | 92.3859 | | PPM | NAA |
| SB | 0.6221 | | PPM | NAA |
| SC | 2.604 | | PPM | NAA |
| SM | 3.5653 | | PPM | NAA |
| TA | 0.9073 | | PPM | NAA |
| TH | 13.4656 | | PPM | NAA |
| V | 29.3081 | | PPM | NAA |
| YB | 0.9344 | | PPM | NAA |
