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Sample 1-105
NavDat sample number 4760 · PHONOLITE
Sample
| Sample ID | 1-105 |
|---|
| 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 | 44.4265 |
|---|
| Longitude | -103.805 |
|---|
| State / province | South Dakota |
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| 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 | 17.737 | | WT% | NAA |
| FE2O3 | 2.8822 | | WT% | NAA |
| MGO | 2.5495 | | WT% | NAA |
| CAO | 0.8315 | | WT% | NAA |
| NA2O | 8.337 | | WT% | NAA |
| TIO2 | 0.3305 | | WT% | NAA |
| MNO | 0.1031 | | WT% | NAA |
| BA | 673.718 | | PPM | NAA |
| CE | 330.399 | | PPM | NAA |
| CO | 2.1873 | | PPM | NAA |
| CR | 9.3538 | | PPM | NAA |
| CS | 5.2713 | | PPM | NAA |
| EU | 2.0376 | | PPM | NAA |
| HF | 8.4886 | | PPM | NAA |
| LA | 113.943 | | PPM | NAA |
| LU | 0.5259 | | PPM | NAA |
| RB | 177.743 | | PPM | NAA |
| SB | 0.5377 | | PPM | NAA |
| SC | 0.6303 | | PPM | NAA |
| SM | 10.1928 | | PPM | NAA |
| TA | 1.7864 | | PPM | NAA |
| TH | 55.9584 | | PPM | NAA |
| V | 61.53 | | PPM | NAA |
| YB | 3.4249 | | PPM | NAA |
