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Sample 1-101
NavDat sample number 4757 · PHONOLITE
Sample
| Sample ID | 1-101 |
|---|
| 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 | 44.3984 |
|---|
| Longitude | -103.759 |
|---|
| State / province | South Dakota |
|---|
| 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 | 20.496 | | WT% | NAA |
| FE2O3 | 2.8479 | | WT% | NAA |
| MGO | 2.9107 | | WT% | NAA |
| CAO | 4.5563 | | WT% | NAA |
| NA2O | 6.7953 | | WT% | NAA |
| TIO2 | 0.4216 | | WT% | NAA |
| MNO | 0.065 | | WT% | NAA |
| BA | 245.43 | | PPM | NAA |
| CE | 193.864 | | PPM | NAA |
| CO | 2.8756 | | PPM | NAA |
| CR | 7.0592 | | PPM | NAA |
| CS | 3.2965 | | PPM | NAA |
| EU | 3.5867 | | PPM | NAA |
| HF | 13.3056 | | PPM | NAA |
| LA | 154.436 | | PPM | NAA |
| LU | 0.3159 | | PPM | NAA |
| RB | 98.952 | | PPM | NAA |
| SB | 0.9874 | | PPM | NAA |
| SC | 0.3142 | | PPM | NAA |
| SM | 15.3984 | | PPM | NAA |
| TA | 3.4555 | | PPM | NAA |
| TH | 92.4131 | | PPM | NAA |
| V | 55.372 | | PPM | NAA |
| YB | 4.2596 | | PPM | NAA |
