Sample 93-19
NavDat sample number 37176 · GRANITE
Sample
| Sample ID | 93-19 |
|---|---|
| Rock name | GRANITE |
| Rock type | PLUTONIC |
| Composition | FELSIC |
| Material | IGNEOUS |
Location
| Latitude | 46.1611 |
|---|---|
| Longitude | -114.514 |
| Location | Wahoo Pass |
| State / province | Montana |
| Volcanic field | Idaho batholith, Bitterroot lobe, Bear Creek pluton |
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|---|---|---|---|---|
| 54.6 | 53.8 | 55.4 |
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|---|---|---|---|
| SIO2 | 73.63 | WT% | XRF | |
| TIO2 | 0.1 | WT% | XRF | |
| AL2O3 | 14.14 | WT% | XRF | |
| FE2O3T | 0.96 | WT% | XRF | |
| MNO | 0.01 | WT% | XRF | |
| MGO | 0.31 | WT% | XRF | |
| CAO | 1.61 | WT% | XRF | |
| NA2O | 3.36 | WT% | XRF | |
| K2O | 3.38 | WT% | XRF | |
| P2O5 | -0.01 | WT% | XRF | |
| BA | 1455 | PPM | XRF | |
| RB | 66 | PPM | XRF | |
| SR | 741 | PPM | XRF | |
| PB | 27 | PPM | XRF | |
| TH | 3 | PPM | XRF | |
| U | 1 | PPM | XRF | |
| LA | 9 | PPM | XRF | |
| CE | 19 | PPM | XRF | |
| Y | 4 | PPM | XRF | |
| ZR | 92 | PPM | XRF | |
| NB | 3 | PPM | XRF | |
| V | 7 | PPM | XRF | |
| CR | 11 | PPM | XRF | |
| NI | -1 | PPM | XRF | |
| CU | 5 | PPM | XRF | |
| ZN | 31 | PPM | XRF | |
| GA | 16 | PPM | XRF | |
| SC | 3 | PPM | XRF |
References
- Foster, David A; Fanning, C Mark (1997) Geochronology of the northern Idaho Batholith and the Bitterrootmetamorphic core complex; magmatism preceding and contemporaneous withextension. Geological Society of America Bulletin, vol.109, no.4, pp.379-394, Apr1997 doi:10.1130/0016-7606(1997)109<0379:GOTNIB>2.3.CO;2