Sample 87A
NavDat sample number 128237 · GABBRO
Sample
| Sample ID | 87A |
|---|---|
| Rock name | GABBRO |
| Rock type | PLUTONIC |
| Composition | MAFIC |
| Material | IGNEOUS |
| Collected by | Frost, Thomas |
| Comment | Intrusion |
Location
| Latitude | 37.2306 |
|---|---|
| Longitude | -118.652 |
| 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 | 52.6 | WT% | XRF | |
| TIO2 | 0.95 | WT% | XRF | |
| AL2O3 | 17.6 | WT% | XRF | |
| FE2O3 | 9.17 | WT% | XRF | |
| MNO | 0.15 | WT% | XRF | |
| MGO | 5.3 | WT% | XRF | |
| CAO | 8.22 | WT% | XRF | |
| NA2O | 3.3 | WT% | XRF | |
| K2O | 1.9 | WT% | XRF | |
| P2O5 | 0.25 | WT% | XRF | |
| LOI | 0.64 | WT% | XRF | |
| BA | 590 | PPM | EDXRF | |
| CE | 55 | PPM | EDXRF | |
| RB | 100 | PPM | EDXRF | |
| SR | 560 | PPM | EDXRF | |
| Y | 18 | PPM | EDXRF | |
| ZR | 155 | PPM | EDXRF | |
| NB | 10 | PPM | EDXRF | |
| NI | 30 | PPM | EDXRF | |
| ZN | 105 | PPM | EDXRF | |
| CR | 110 | PPM | EDXRF |