← Search
Sample 1-85
NavDat sample number 4746 · PHONOLITE
Sample
| Sample ID | 1-85 |
|---|
| Rock name | PHONOLITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | INTERMEDIATE |
|---|
| Material | IGNEOUS |
|---|
| Comment | many anorthoclase phenocrysts and fewer albite phenocrysts; groundmass of plagioclase with distinct flow texture and little or no quartz; nepheline occurs in phenocrysts; pyroxene also present |
|---|
Location
| Latitude | 44.3786 |
|---|
| Longitude | -103.808 |
|---|
| 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 | 17.3288 | | WT% | NAA |
| FE2O3 | 0.4872 | | WT% | NAA |
| MGO | 1.9823 | | WT% | NAA |
| CAO | 0.7418 | | WT% | NAA |
| NA2O | 10.403 | | WT% | NAA |
| TIO2 | 0.3975 | | WT% | NAA |
| MNO | 0.1501 | | WT% | NAA |
| BA | 612.64 | | PPM | NAA |
| CE | 145.972 | | PPM | NAA |
| CO | 2.3451 | | PPM | NAA |
| CR | 9.8761 | | PPM | NAA |
| CS | 2.9513 | | PPM | NAA |
| EU | 4.8214 | | PPM | NAA |
| HF | 6.6219 | | PPM | NAA |
| LA | 209.192 | | PPM | NAA |
| LU | 0.4285 | | PPM | NAA |
| RB | 151.113 | | PPM | NAA |
| SB | 0.6457 | | PPM | NAA |
| SC | 0.7454 | | PPM | NAA |
| SM | 19.444 | | PPM | NAA |
| TA | 2.4213 | | PPM | NAA |
| TH | 63.5218 | | PPM | NAA |
| V | 53.6779 | | PPM | NAA |
| YB | 5.9214 | | PPM | NAA |
