Sample WM-85
NavDat sample number 43733 · GABBRO
Sample
| Sample ID | WM-85 |
|---|---|
| Rock name | GABBRO |
| Rock type | PLUTONIC |
| Composition | MAFIC |
| Material | IGNEOUS |
| Comment | Barcroft gabbro/diorite |
Location
| Latitude | 37.5685 |
|---|---|
| Longitude | -118.269 |
| State / province | California |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 167.3 | 156.6 | 178 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 54.34 | WT% | XRF | |
| AL2O3 | 17.48 | WT% | XRF | |
| TIO2 | 1.09 | WT% | XRF | |
| FE2O3 | 8.95 | WT% | XRF | |
| MNO | 0.14 | WT% | XRF | |
| CAO | 7.74 | WT% | XRF | |
| MGO | 4.33 | WT% | XRF | |
| K2O | 2.13 | WT% | XRF | |
| NA2O | 3.53 | WT% | XRF | |
| P2O5 | 0.31 | WT% | XRF | |
| TOTAL | 100.04 | WT% | XRF | |
| NI | 25 | PPM | XRF | |
| CR | 63 | PPM | XRF | |
| SC | 26 | PPM | XRF | |
| V | 245 | PPM | XRF | |
| BA | 900 | PPM | XRF | |
| RB | 74 | PPM | XRF | |
| SR | 737 | PPM | XRF | |
| ZR | 159 | PPM | XRF | |
| Y | 19 | PPM | XRF | |
| NB | 9.1 | PPM | XRF | |
| GA | 20 | PPM | XRF | |
| CU | 52 | PPM | XRF | |
| ZN | 78 | PPM | XRF | |
| PB | 5 | PPM | XRF | |
| LA | 26 | PPM | XRF | |
| CE | 68 | PPM | XRF | |
| TH | 6 | PPM | XRF |
References
- Ernst, W G; Coleman, Drew S; Van, de Ven C M (2003) Petrochemistry of granitic rocks in the Mount Barcroft area; implications for arc evolution, central White Mountains, easternmost California. Geological Society of America Bulletin. 115; 4, Pages 499-512. 2003. doi:10.1130/0016-7606(2003)115<0499:POGRIT>2.0.CO;2