Sample 81 A
NavDat sample number 128298 · GABBRO
Sample
| Sample ID | 81 A |
|---|---|
| Rock name | GABBRO |
| Rock type | PLUTONIC |
| Composition | MAFIC |
| Material | IGNEOUS |
| Collected by | Frost, Thomas |
| Comment | Intrusion |
Location
| Latitude | 37.1458 |
|---|---|
| Longitude | -118.586 |
| Location | Lamark Granodiorite |
| State / province | California |
| Volcanic field | Eastern Sierra Nevada |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 91.6 | 91 | 92.2 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 47.6 | WT% | XRF | |
| TIO2 | 1.52 | WT% | XRF | |
| AL2O3 | 17.8 | WT% | XRF | |
| FE2O3 | 11.4 | WT% | XRF | |
| MNO | 0.15 | WT% | XRF | |
| MGO | 6.2 | WT% | XRF | |
| CAO | 9.35 | WT% | XRF | |
| NA2O | 2.7 | WT% | XRF | |
| K2O | 1.72 | WT% | XRF | |
| P2O5 | 0.37 | WT% | XRF | |
| LOI | 1.3 | WT% | XRF | |
| BA | 590 | PPM | EDXRF | |
| CE | 48 | PPM | EDXRF | |
| RB | 73 | PPM | EDXRF | |
| SR | 840 | PPM | EDXRF | |
| Y | 18 | PPM | EDXRF | |
| ZR | 85 | PPM | EDXRF | |
| NB | 11 | PPM | EDXRF | |
| NI | 51 | PPM | EDXRF | |
| ZN | 135 | PPM | EDXRF | |
| CR | 100 | PPM | EDXRF |