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Sample 1-36
NavDat sample number 4718 · PHONOLITE
Sample
| Sample ID | 1-36 |
|---|
| 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 | 44.3266 |
|---|
| Longitude | -103.803 |
|---|
| 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 | 21.9041 | | WT% | NAA |
| FE2O3 | 0.874 | | WT% | NAA |
| MGO | 3.3906 | | WT% | NAA |
| CAO | 11.3207 | | WT% | NAA |
| NA2O | 6.9033 | | WT% | NAA |
| TIO2 | 0.5502 | | WT% | NAA |
| MNO | 0.1741 | | WT% | NAA |
| CE | 149.893 | | PPM | NAA |
| CO | 3.1379 | | PPM | NAA |
| CR | 8.293 | | PPM | NAA |
| CS | 7.4967 | | PPM | NAA |
| EU | 2.6827 | | PPM | NAA |
| HF | 10.409 | | PPM | NAA |
| LA | 120.428 | | PPM | NAA |
| LU | 0.5305 | | PPM | NAA |
| RB | 106.504 | | PPM | NAA |
| SC | 1.6055 | | PPM | NAA |
| SM | 11.9489 | | PPM | NAA |
| TA | 2.8961 | | PPM | NAA |
| TH | 61.8084 | | PPM | NAA |
| V | 50.6249 | | PPM | NAA |
| YB | 3.9128 | | PPM | NAA |
