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Sample T049
NavDat sample number 6894 · LATITE
Sample
| Sample ID | T049 |
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| Rock name | LATITE |
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| Rock type | VOLCANIC |
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| Composition | INTERMEDIATE |
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| Material | IGNEOUS |
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| Comment | aphanitic holocrystalline groundmass with phenocrysts of plagioclase, hornblende, biotite, and rare aegirine-augite; groundmass composed of lath-shaped orthoclase arranged in pilotaxitic texture, interstitial quartz; foliated |
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Location
| Latitude | 44.363 |
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| Longitude | -104.053 |
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| Location | Black Hills |
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| State / province | South Dakota |
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| Volcanic field | Tinton District |
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Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 48 |
|
38 |
59 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 61.36 | | WT% | XRF |
| AL2O3 | 18.16 | | WT% | XRF |
| FE2O3 | 2.13 | | WT% | XRF |
| FEO | 3.36 | | WT% | XRF |
| MGO | 0.86 | | WT% | XRF |
| CAO | 3.2 | | WT% | XRF |
| NA2O | 5.8 | | WT% | XRF |
| K2O | 3.9 | | WT% | XRF |
| TIO2 | 0.59 | | WT% | XRF |
| P2O5 | 0.24 | | WT% | XRF |
| MNO | 0.4 | | WT% | XRF |
| SO3 | 0 | | WT% | XRF |
