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Sample ID/MR-6
NavDat sample number 10644 · RHYOLITE
Sample
| Sample ID | ID/MR-6 |
|---|
| Rock name | RHYOLITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
| Comment | composed of sanidine and anorthoclase laths, subround quartz, anhedral ferroaugite and lessor amountains of plagioclase, biotite, and opaques; glassy to totally devitrified matrix |
|---|
Location
| Latitude | 43.3331 |
|---|
| Longitude | -114.398 |
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| Location | Magic Reservoir |
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| State / province | Idaho |
|---|
| Volcanic field | older rhyolite of Magic Reservoir |
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Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 5.81 |
|
5.12 |
6.5 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 74.93 | | WT% | ICP |
| TIO2 | 0.31 | | WT% | ICP |
| AL2O3 | 12.46 | | WT% | ICP |
| FE2O3 | 2.34 | | WT% | ICP |
| MNO | 0.01 | | WT% | ICP |
| MGO | 0.17 | | WT% | ICP |
| CAO | 0.75 | | WT% | ICP |
| NA2O | 3.14 | | WT% | ICP |
| K2O | 5.6 | | WT% | ICP |
| P2O5 | 0.04 | | WT% | ICP |
| LOI | 1.37 | | WT% | ICP |
| BA | 1177 | | PPM | ICP |
| ZR | 388 | | PPM | ICP |
| SR | 106 | | PPM | ICP |
| BE | 4.3 | | PPM | ICP |
| LI | 28 | | 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
