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Sample SANLU20A-90
NavDat sample number 42555 · PEGMATITE
Sample
| Sample ID | SANLU20A-90 |
|---|
| Rock name | PEGMATITE |
|---|
| Rock type | PLUTONIC |
|---|
| Composition | FELSIC |
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| Material | IGNEOUS |
|---|
Location
| Latitude | 36.4282 |
|---|
| Longitude | -121.782 |
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| State / province | California |
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| Location comment | porphyritic granodiorite of Monterey, granodiorite of Cachagua, quartz diorite of Soberanes Point |
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Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 83.5 |
|
75.15 |
91.85 |
|
|
Analyses
WHOLE ROCK
| Item | Value | Std. dev. | Unit | Method |
|---|
| RB | 147 | | PPM | EDXRF |
| SR | 172 | | PPM | EDXRF |
| RB_SR | 0.854 | | | MS |
| RB87_SR86 | 2.47 | | | MS |
| SR87_SR86 | 0.71093 | | | MS |
| SR87_SR86_INITIAL | 0.70787 | | | MS |
References
- Kistler, R W; Champion, D E (2001) Rb-Sr whole-rock and mineral ages, K-Ar, (super 40) Ar/ (super 39) Ar, and U-Pb mineral ages, and strontium, lead, neodymium, and oxygen isotopic compositions for granitic rocks from the Salinian Composite Terrane, California. Open-File Report - U. S. Geological Survey. 2001.
