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Sample 1-119
NavDat sample number 4769 · PHONOLITE
Sample
| Sample ID | 1-119 |
|---|
| 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 | 44.4155 |
|---|
| Longitude | -103.879 |
|---|
| 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 | 14.5147 | | WT% | NAA |
| FE2O3 | 3.8725 | | WT% | NAA |
| MGO | 2.9987 | | WT% | NAA |
| CAO | 1.154 | | WT% | NAA |
| NA2O | 8.4177 | | WT% | NAA |
| TIO2 | 0.4246 | | WT% | NAA |
| BA | 202.82 | | PPM | NAA |
| CE | 277.261 | | PPM | NAA |
| CO | 8.5361 | | PPM | NAA |
| CR | 53.1675 | | PPM | NAA |
| CS | 3.0332 | | PPM | NAA |
| EU | 2.7271 | | PPM | NAA |
| HF | 5.2386 | | PPM | NAA |
| LA | 85.8362 | | PPM | NAA |
| LU | 0.144 | | PPM | NAA |
| RB | 78.8692 | | PPM | NAA |
| SB | 0.4525 | | PPM | NAA |
| SC | 3.3347 | | PPM | NAA |
| SM | 11.068 | | PPM | NAA |
| TA | 2.1202 | | PPM | NAA |
| TH | 28.6871 | | PPM | NAA |
| V | 103.008 | | PPM | NAA |
| YB | 2.1055 | | PPM | NAA |
