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Sample 1-30
NavDat sample number 4713 · PHONOLITE
Sample
| Sample ID | 1-30 |
|---|
| 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 | 44.3385 |
|---|
| Longitude | -103.868 |
|---|
| 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 | 19.4014 | | WT% | NAA |
| FE2O3 | 0.7683 | | WT% | NAA |
| MGO | 1.4271 | | WT% | NAA |
| CAO | 6.0536 | | WT% | NAA |
| NA2O | 7.9257 | | WT% | NAA |
| TIO2 | 0.2937 | | WT% | NAA |
| MNO | 0.1139 | | WT% | NAA |
| BA | 108.172 | | PPM | NAA |
| CE | 194.637 | | PPM | NAA |
| CO | 1.5179 | | PPM | NAA |
| CR | 3.953 | | PPM | NAA |
| CS | 4.0231 | | PPM | NAA |
| EU | 1.8912 | | PPM | NAA |
| HF | 9.3372 | | PPM | NAA |
| LA | 161.104 | | PPM | NAA |
| LU | 0.4348 | | PPM | NAA |
| RB | 165.198 | | PPM | NAA |
| SC | 0.1767 | | PPM | NAA |
| SM | 11.186 | | PPM | NAA |
| TA | 1.3507 | | PPM | NAA |
| TH | 62.7275 | | PPM | NAA |
| V | 27.9967 | | PPM | NAA |
| YB | 3.0999 | | PPM | NAA |
