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Sample JM-140
NavDat sample number 9442 · NOT-GIVEN
Sample
| Sample ID | JM-140 |
|---|
| Rock name | NOT-GIVEN |
|---|
| Rock type | PLUTONIC |
|---|
| Composition | MAFIC |
|---|
| Material | IGNEOUS |
|---|
| Comment | from a dike of the alkali syenite porphyry; dominated by hornblende with lessor diopsidic-aegerine-augite, phlogopite/biotite, sanidine, and carbonate secondary? |
|---|
Location
| Latitude | 47.2494 |
|---|
| Longitude | -109.079 |
|---|
| State / province | Montana |
|---|
| Volcanic field | Linster Peak Dome |
|---|
Age
| Age (Ma) | Error | Min | Max | Geologic age | Dated by |
|---|
| 67 |
|
64 |
69 |
|
|
Analyses
Whole rock
| Item | Value | Std. dev. | Unit | Method |
|---|
| SIO2 | 44.95 | | WT% | XRF |
| AL2O3 | 6.68 | | WT% | XRF |
| TIO2 | 0.91 | | WT% | XRF |
| FEOT | 20.42 | | WT% | XRF |
| MNO | 0.6 | | WT% | XRF |
| CAO | 15.3 | | WT% | XRF |
| MGO | 5.39 | | WT% | XRF |
| K2O | 0.905 | | WT% | XRF |
| NA2O | 4.19 | | WT% | XRF |
| P2O5 | 0.54 | | WT% | XRF |
| TOTAL | 99.92 | | WT% | XRF |
