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Sample 1-19
NavDat sample number 4705 · PHONOLITE
Sample
| Sample ID | 1-19 |
|---|
| 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 | 44.3219 |
|---|
| Longitude | -103.84 |
|---|
| 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 | 17.0714 | | WT% | NAA |
| FE2O3 | 0.05742 | | WT% | NAA |
| MGO | 1.6491 | | WT% | NAA |
| CAO | 8.1703 | | WT% | NAA |
| NA2O | 5.7851 | | WT% | NAA |
| TIO2 | 0.2927 | | WT% | NAA |
| MNO | 0.0344 | | WT% | NAA |
| BA | 211.41 | | PPM | NAA |
| CE | 215.098 | | PPM | NAA |
| CO | 1.4476 | | PPM | NAA |
| CR | 13.2964 | | PPM | NAA |
| CS | 1.8706 | | PPM | NAA |
| EU | 4.2167 | | PPM | NAA |
| HF | 11.2283 | | PPM | NAA |
| LA | 195.005 | | PPM | NAA |
| LU | 0.1467 | | PPM | NAA |
| RB | 96.5337 | | PPM | NAA |
| SB | 0.625 | | PPM | NAA |
| SC | 0.7728 | | PPM | NAA |
| SM | 17.235 | | PPM | NAA |
| TA | 3.39315 | | PPM | NAA |
| TH | 112.558 | | PPM | NAA |
| V | 15.9384 | | PPM | NAA |
| YB | 3.9283 | | PPM | NAA |
