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Sample 1-120
NavDat sample number 4770 · PHONOLITE
Sample
| Sample ID | 1-120 |
|---|
| 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 | 44.3153 |
|---|
| Longitude | -103.884 |
|---|
| 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 | 16.6174 | | WT% | NAA |
| FE2O3 | 3.1789 | | WT% | NAA |
| MGO | 2.895 | | WT% | NAA |
| CAO | 0.533 | | WT% | NAA |
| NA2O | 5.9351 | | WT% | NAA |
| TIO2 | 0.2395 | | WT% | NAA |
| BA | 310.136 | | PPM | NAA |
| CE | 488.614 | | PPM | NAA |
| CO | 6.6407 | | PPM | NAA |
| CR | 67.8368 | | PPM | NAA |
| CS | 43.0202 | | PPM | NAA |
| EU | 2.7758 | | PPM | NAA |
| HF | 8.0685 | | PPM | NAA |
| LA | 171.581 | | PPM | NAA |
| LU | 0.8728 | | PPM | NAA |
| RB | 156.031 | | PPM | NAA |
| SB | 0.5192 | | PPM | NAA |
| SC | 1.9408 | | PPM | NAA |
| SM | 12.367 | | PPM | NAA |
| TA | 1.4674 | | PPM | NAA |
| TH | 80.5442 | | PPM | NAA |
| V | 50.474 | | PPM | NAA |
| YB | 5.6216 | | PPM | NAA |
