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Sample 1-29
NavDat sample number 4712 · PHONOLITE
Sample
| Sample ID | 1-29 |
|---|
| 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 | 44.3501 |
|---|
| Longitude | -103.857 |
|---|
| 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 | 19.2117 | | WT% | NAA |
| FE2O3 | 0.8266 | | WT% | NAA |
| MGO | 1.289 | | WT% | NAA |
| CAO | 6.8014 | | WT% | NAA |
| NA2O | 9.1415 | | WT% | NAA |
| TIO2 | 0.3227 | | WT% | NAA |
| MNO | 0.1137 | | WT% | NAA |
| BA | 984.5 | | PPM | NAA |
| CE | 205.309 | | PPM | NAA |
| CO | 1.5612 | | PPM | NAA |
| CR | 1.2341 | | PPM | NAA |
| CS | 4.7817 | | PPM | NAA |
| EU | 1.9136 | | PPM | NAA |
| HF | 9.5711 | | PPM | NAA |
| LA | 170.024 | | PPM | NAA |
| LU | 0.4069 | | PPM | NAA |
| RB | 199.811 | | PPM | NAA |
| SC | 0.1725 | | PPM | NAA |
| SM | 10.4976 | | PPM | NAA |
| TA | 1.3484 | | PPM | NAA |
| TH | 64.4518 | | PPM | NAA |
| V | 36.501 | | PPM | NAA |
| YB | 3.051 | | PPM | NAA |
