← Search
Sample 1-76
NavDat sample number 4740 · MONZONITE
Sample
| Sample ID | 1-76 |
|---|
| 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 | 44.3641 |
|---|
| Longitude | -103.799 |
|---|
| 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 | 16.3986 | | WT% | NAA |
| FE2O3 | 0.0065 | | WT% | NAA |
| MGO | 1.5131 | | WT% | NAA |
| CAO | 0.9843 | | WT% | NAA |
| NA2O | 7.0134 | | WT% | NAA |
| TIO2 | 0.4002 | | WT% | NAA |
| MNO | 0.0498 | | WT% | NAA |
| BA | 565.102 | | PPM | NAA |
| CE | 50.1722 | | PPM | NAA |
| CO | 2.7494 | | PPM | NAA |
| CR | 8.467 | | PPM | NAA |
| CS | 3.3396 | | PPM | NAA |
| EU | 1.2126 | | PPM | NAA |
| HF | 3.3484 | | PPM | NAA |
| LA | 37.332 | | PPM | NAA |
| LU | 0.3359 | | PPM | NAA |
| RB | 126.257 | | PPM | NAA |
| SB | 0.5025 | | PPM | NAA |
| SC | 1.558 | | PPM | NAA |
| SM | 3.4581 | | PPM | NAA |
| TA | 1.2671 | | PPM | NAA |
| TH | 21.4865 | | PPM | NAA |
| V | 21.218 | | PPM | NAA |
| YB | 2.1375 | | PPM | NAA |
