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Sample CB11(3)
NavDat sample number 130758 · KERATOPHYRE
Sample
| Sample ID | CB11(3) |
|---|
| Rock name | KERATOPHYRE |
|---|
| Rock type | VOLCANIC |
|---|
| Composition | FELSIC |
|---|
| Material | METAMORPHIC |
|---|
| Collected by | Saleeby and others |
|---|
| Comment | Greenschist facies quartz-albite phyric keratophyre tuff |
|---|
Location
| Latitude | 39.78 |
|---|
| Longitude | -121.07 |
|---|
| State / province | California |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 295 |
|
265.5 |
324.5 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| PB206_PB204 | 463 | | | MS |
| ND143_ND144 | 0.512174 | | | MS |
| SR87_SR86 | 0.705032 | | | MS |
| U | 0.00272 | | PPM | MS-ID |
| PB | 8.15E-5 | | PPM | MS-ID |
| SR | 0.0088 | | PPM | MS-ID |
References
- Saleeby, Jason B; Shaw, H F; Niemeyer, S; Moores, E M; Edelman, S H (1989) U/Pb, Sm/Nd and Rb/Sr geochronological and isotopic study of northernSierra Nevada ophiolitic assemblages, California. Contributions to Mineralogy and Petrology, vol.102, no.2, pp.205-220,1989 doi:10.1007/BF00375341
