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Sample HH-222
NavDat sample number 18442 · DACITE
Sample
| Sample ID | HH-222 |
|---|
| Rock name | DACITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
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| Material | IGNEOUS |
|---|
| Collected by | I.M. Lange |
|---|
| Comment | Pb isotope data IS FROM SANIDINE, NOT WHOLE-ROCK; rock consists of plagioclase, sanidine, quartz, biotite, and opaques |
|---|
Location
| Latitude | 47.9153 |
|---|
| Longitude | -114.631 |
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| Location | Flathead County |
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| State / province | Montana |
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| Volcanic field | Hog Heaven Volcanic Field |
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Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 34 |
|
31 |
36 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| PB206_PB204 | 16.772 | | | MS-ID |
| PB207_PB204 | 15.33 | | | MS-ID |
| PB208_PB204 | 36.885 | | | MS-ID |
