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Sample 73-20
NavDat sample number 10369 · RHYOLITE
Sample
| Sample ID | 73-20 |
|---|
| Rock name | RHYOLITE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | IGNEOUS |
|---|
Location
| Latitude | 36.0215 |
|---|
| Longitude | -117.825 |
|---|
| State / province | California |
|---|
| Volcanic field | Coso |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 0.16 |
|
0.13 |
0.19 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| K2O | 4.58 | | WT% | UNKNOWN |
| U | 9.3 | | PPM | INAA |
| TH | 32 | | PPM | INAA |
| PB | 31 | | PPM | XRF |
| PB206_PB204 | 19.296 | | | MS |
| PB207_PB204 | 15.684 | | | MS |
| PB208_PB204 | 39.004 | | | MS |
References
- Bacon, Charles R; Kurasawa, Hajime; Delevaux, Maryse H; Kistler, Ronald W; Doe, Bruce R (1984) Lead and strontium isotopic evidence for crustal interaction and compositional zonation in the source regions of Pleistocene basaltic and rhyolitic magmas of the Coso volcanic field, California. Contributions to Mineralogy and Petrology, vol.85, no.4, pp.366-375, Apr 1984 doi:10.1007/BF01150293
