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Sample ID/BE-21A
NavDat sample number 10643 · RHYOLITE
Sample
| Sample ID | ID/BE-21A |
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| Rock name | RHYOLITE |
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| Rock type | VOLCANIC |
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| Composition | FELSIC |
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| Material | IGNEOUS |
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| Comment | part of dome rhyolite is flow banded with 5% to 7% phenos; part is coarsely crystalline with 15-20% phenos; phenos consist of quartz, sanidine, anorthoclase, plag, opaques, and minor biotite and opx |
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Location
| Latitude | 43.3313 |
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| Longitude | -114.407 |
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| Location | Magic Reservoir |
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| State / province | Idaho |
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| Volcanic field | Magic Reservoir rhyolite, dome |
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Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 4.77 |
|
4.48 |
5.06 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 76.22 | | WT% | ICP |
| TIO2 | 0.21 | | WT% | ICP |
| AL2O3 | 11.58 | | WT% | ICP |
| FE2O3 | 1.93 | | WT% | ICP |
| MNO | 0.01 | | WT% | ICP |
| MGO | 0.11 | | WT% | ICP |
| CAO | 0.51 | | WT% | ICP |
| NA2O | 2.79 | | WT% | ICP |
| K2O | 5.6 | | WT% | ICP |
| P2O5 | 0.3 | | WT% | ICP |
| LOI | 0.95 | | WT% | ICP |
| BA | 625 | | PPM | ICP |
| ZR | 267 | | PPM | ICP |
| SR | 49 | | PPM | ICP |
| BE | 6.4 | | PPM | ICP |
| LI | 42 | | PPM | AAS |
References
- Struhsacker, Debra W; Jewell, Paul W; Zeisloft, Jon; Evans, Stanley H,Jr (1982) The geology and geothermal setting of the Magic Reservoir area, Blaineand Camas counties, Idaho. Bulletin - Idaho Bureau of Mines and Geology, vol.26, pp.377-393,1982
