Sample 82-028
NavDat sample number 31217 · GRANODIORITE
Sample
| Sample ID | 82-028 |
|---|---|
| Rock name | GRANODIORITE |
| Rock type | PLUTONIC |
| Composition | INTERMEDIATE |
| Material | IGNEOUS |
Location
| Latitude | 48.85 |
|---|---|
| Longitude | -121.5 |
| Location | North Cascades |
| State / province | Washington |
| Location comment | Chilliwack batholith |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 18 | 1 | 35 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 57.03 | WT% | ICPAES | |
| TIO2 | 0.84 | WT% | ICPAES | |
| AL2O3 | 17.19 | WT% | ICPAES | |
| FE2O3 | 1.79 | WT% | ICPAES | |
| FEO | 4.74 | WT% | ICPAES | |
| MGO | 3.96 | WT% | ICPAES | |
| MNO | 0.11 | WT% | ICPAES | |
| CAO | 7.17 | WT% | ICPAES | |
| NA2O | 3.55 | WT% | ICPAES | |
| K2O | 2.04 | WT% | ICPAES | |
| P2O5 | 0.21 | WT% | ICPAES | |
| CR | 42 | PPM | ICPAES | |
| SC | 15 | PPM | ICPAES | |
| V | 173 | PPM | ICPAES | |
| SR | 301 | PPM | ICPAES | |
| BA | 382 | PPM | ICPAES | |
| RB | 55 | PPM | MS-ID | |
| ZN | 62 | PPM | ICPAES | |
| CU | 42 | PPM | ICPAES | |
| Y | 23.5 | PPM | ICPAES | |
| ZR | 23 | PPM | ICPAES | |
| LA | 14.5 | PPM | ICPAES | |
| CE | 34.4 | PPM | ICPAES | |
| ND | 20.2 | PPM | ICPAES | |
| SM | 3.9 | PPM | ICPAES | |
| EU | 0.96 | PPM | ICPAES | |
| GD | 4.63 | PPM | ICPAES | |
| DY | 4.65 | PPM | ICPAES | |
| HO | 0.93 | PPM | ICPAES | |
| YB | 2.33 | PPM | ICPAES | |
| LU | 0.36 | PPM | ICPAES | |
| RB87_SR86 | 0.5261 | MS | ||
| SR87_SR86 | 0.70434 | MS | ||
| ND143_ND144 | 0.512819 | MS |
References
- Tepper, Jeffrey H; Nelson, Bruce K; Bergantz, George W; Irving, Anthony J (1993) Petrology of the Chilliwack Batholith, North Cascades, Washington; generation of calc-alkaline granitoids by melting mafic lower crust with variable water fugacity. Contributions to Mineralogy and Petrology. 113; 3, Pages 333-351. 1993. doi:10.1007/BF00286926