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Sample 1-116
NavDat sample number 4767 · PHONOLITE
Sample
| Sample ID | 1-116 |
|---|
| 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 | 44.4345 |
|---|
| Longitude | -103.852 |
|---|
| 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 | 24.0497 | | WT% | NAA |
| FE2O3 | 2.0787 | | WT% | NAA |
| MGO | 5.0173 | | WT% | NAA |
| CAO | 3.797 | | WT% | NAA |
| NA2O | 6.1241 | | WT% | NAA |
| TIO2 | 0.2768 | | WT% | NAA |
| BA | 620.35 | | PPM | NAA |
| CE | 129.194 | | PPM | NAA |
| CO | 1.2582 | | PPM | NAA |
| CR | 3.741 | | PPM | NAA |
| CS | 9.374 | | PPM | NAA |
| EU | 1.3658 | | PPM | NAA |
| HF | 6.9512 | | PPM | NAA |
| LA | 81.214 | | PPM | NAA |
| LU | 0.4831 | | PPM | NAA |
| RB | 143.609 | | PPM | NAA |
| SB | 0.3859 | | PPM | NAA |
| SC | 0.2463 | | PPM | NAA |
| SM | 6.976 | | PPM | NAA |
| TA | 0.7986 | | PPM | NAA |
| TH | 38.4315 | | PPM | NAA |
| V | 30.4764 | | PPM | NAA |
| YB | 3.077 | | PPM | NAA |
