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Sample BB 34
NavDat sample number 30103 · MINETTE
Sample
| Sample ID | BB 34 |
|---|
| Rock name | MINETTE |
|---|
| Rock type | PLUTONIC |
|---|
| Composition | EXOTIC |
|---|
| Material | IGNEOUS |
|---|
Location
| Latitude | 48.2356 |
|---|
| Longitude | -109.684 |
|---|
| Location | Bearpaw Mountains |
|---|
| State / province | Montana |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 52 |
|
50 |
54 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 69.46 | | WT% | XRF |
| TIO2 | 0.06 | | WT% | XRF |
| AL2O3 | 15.5 | | WT% | XRF |
| FE2O3 | 1 | | WT% | XRF |
| MNO | 0.03 | | WT% | XRF |
| MGO | 0.95 | | WT% | XRF |
| CAO | 0.97 | | WT% | XRF |
| NA2O | 4.25 | | WT% | XRF |
| K2O | 5.51 | | WT% | XRF |
| TOTAL | 97.73 | | WT% | XRF |
| RB | 263.8 | | PPM | MS |
| SR | 644.2 | | PPM | MS |
| SR87_SR86 | 0.710936 | | | MS |
References
- MacDonald, R; Upton, B G J; Collerson, K D; Hearn, B C, Jr; James, D (1992) Potassic mafic lavas of the Bearpaw Mountains, Montana; mineralogy,chemistry, and origin. Journal of Petrology, vol.33, no.2, pp.305-346, Apr 1992
