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Sample 1-106
NavDat sample number 4761 · PHONOLITE
Sample
| Sample ID | 1-106 |
|---|
| 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 | 44.4296 |
|---|
| Longitude | -103.812 |
|---|
| 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 | 14.329 | | WT% | NAA |
| FE2O3 | 2.9544 | | WT% | NAA |
| MGO | 2.8955 | | WT% | NAA |
| CAO | 0.6772 | | WT% | NAA |
| NA2O | 8.0994 | | WT% | NAA |
| TIO2 | 0.2944 | | WT% | NAA |
| BA | 213.457 | | PPM | NAA |
| CE | 299.344 | | PPM | NAA |
| CO | 2.3023 | | PPM | NAA |
| CR | 7.4231 | | PPM | NAA |
| CS | 5.3842 | | PPM | NAA |
| EU | 1.9192 | | PPM | NAA |
| HF | 8.413 | | PPM | NAA |
| LA | 104.921 | | PPM | NAA |
| LU | 0.3464 | | PPM | NAA |
| RB | 175.3 | | PPM | NAA |
| SB | 0.578 | | PPM | NAA |
| SC | 0.6793 | | PPM | NAA |
| SM | 9.077 | | PPM | NAA |
| TA | 1.5114 | | PPM | NAA |
| TH | 50.8318 | | PPM | NAA |
| V | 50.6751 | | PPM | NAA |
| YB | 3.1284 | | PPM | NAA |
