Sample OMB1691
NavDat sample number 88064 · GRANITE
Sample
| Sample ID | OMB1691 |
|---|---|
| Rock name | GRANITE |
| Rock type | PLUTONIC |
| Composition | FELSIC |
| Material | IGNEOUS |
| Collected by | Barnes and others |
| Comment | Biotite granite dike |
Location
| Latitude | 41.1152 |
|---|---|
| Longitude | -123.48 |
| 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 | 73.89 | WT% | ICPAES | |
| TIO2 | 0.12 | WT% | ICPAES | |
| AL2O3 | 14.1 | WT% | ICPAES | |
| FE2O3 | 0.13 | WT% | ICPAES | |
| FEO | 1.09 | WT% | ICPAES | |
| MNO | 0.02 | WT% | ICPAES | |
| MGO | 0.24 | WT% | ICPAES | |
| CAO | 1.07 | WT% | ICPAES | |
| NA2O | 2.97 | WT% | ICPAES | |
| K2O | 5.7 | WT% | ICPAES | |
| P2O5 | 0.05 | WT% | ICPAES | |
| LOI | 0.99 | WT% | ICPAES | |
| RB | 183 | PPM | FPHOT | |
| SR | 377 | PPM | ICPAES | |
| ZR | 93 | PPM | ICPAES | |
| Y | 4.2 | PPM | ICPAES | |
| NB | 2 | PPM | ICPAES | |
| BA | 1427 | PPM | ICPAES | |
| SC | 1.2 | PPM | ICPAES | |
| V | 11 | PPM | ICPAES | |
| CU | 7 | PPM | ICPAES | |
| ZN | 15 | 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)