Sample OMB1688
NavDat sample number 88052 · MONZOGABBRO
Sample
| Sample ID | OMB1688 |
|---|---|
| Rock name | MONZOGABBRO |
| Rock type | PLUTONIC |
| Composition | MAFIC |
| Material | IGNEOUS |
| Collected by | Barnes and others |
| Comment | Quartz-bearing biotite three pyroxene monzogabbro |
Location
| Latitude | 41.1392 |
|---|---|
| Longitude | -123.529 |
| Location | Ironside Mountain Pluton |
| State / province | California |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 169 | 169 | 170 |
Analyses
Whole Rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 54.65 | WT% | ICPAES | |
| TIO2 | 0.75 | WT% | ICPAES | |
| AL2O3 | 17.17 | WT% | ICPAES | |
| FE2O3 | 2.61 | WT% | ICPAES | |
| FEO | 6.99 | WT% | ICPAES | |
| MNO | 0.2 | WT% | ICPAES | |
| MGO | 3.73 | WT% | ICPAES | |
| CAO | 8 | WT% | ICPAES | |
| NA2O | 3.05 | WT% | ICPAES | |
| K2O | 2.42 | WT% | ICPAES | |
| P2O5 | 0.41 | WT% | ICPAES | |
| LOI | 1.06 | WT% | ICPAES | |
| RB | 62 | PPM | FPHOT | |
| SR | 699 | PPM | ICPAES | |
| ZR | 91 | PPM | ICPAES | |
| Y | 25.8 | PPM | ICPAES | |
| NB | 9 | PPM | ICPAES | |
| BA | 747 | PPM | ICPAES | |
| SC | 24.7 | PPM | ICPAES | |
| V | 227 | PPM | ICPAES | |
| CR | 18 | PPM | ICPAES | |
| CU | 57 | PPM | ICPAES | |
| ZN | 98 | PPM | ICPAES |
References
- Barnes, Calvin G; Mars, Elizabeth V; Swapp, Susan; Frost, Carol D (2006) Petrology and geochemistry of the Middle Jurassic Ironside MountainBatholith; evolution of potassic magmas in a primitive arc setting. Special Paper - Geological Society of America, vol.410, pp.199-221,2006 doi:10.1130/2006.2410(10)