← Search
Sample 1-55D
NavDat sample number 4773 · MONZONITE
Sample
| Sample ID | 1-55D |
|---|
| 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 | 16.4053 | | WT% | NAA |
| FE2O3 | 1.7962 | | WT% | NAA |
| MGO | 2.242 | | WT% | NAA |
| CAO | 0.7357 | | WT% | NAA |
| NA2O | 2.3254 | | WT% | NAA |
| TIO2 | 0.2338 | | WT% | NAA |
| MNO | 0.0271 | | WT% | NAA |
| BA | 183.269 | | PPM | NAA |
| CE | 98.1166 | | PPM | NAA |
| CO | 2.8394 | | PPM | NAA |
| CR | 12.9524 | | PPM | NAA |
| CS | 2.0058 | | PPM | NAA |
| EU | 1.01214 | | PPM | NAA |
| HF | 3.3838 | | PPM | NAA |
| LA | 36.1568 | | PPM | NAA |
| LU | 0.0896 | | PPM | NAA |
| RB | 83.9045 | | PPM | NAA |
| SB | 0.7232 | | PPM | NAA |
| SC | 1.872 | | PPM | NAA |
| SM | 3.3065 | | PPM | NAA |
| TA | 0.5448 | | PPM | NAA |
| TH | 10.7872 | | PPM | NAA |
| V | 26.833 | | PPM | NAA |
| YB | 0.9383 | | PPM | NAA |
