Sample: 91CND29
| Sample ID: | 91CND29 [1] |
| Station ID: | 91CND29 |
| AT Num: | |
| Volcano: | Douglas |
| Possible source: | |
| Eruption: | |
| Collector: | Nye, C. J. |
| Date sampled: | 1991-01-01 |
| Sample type 1: | Countryrock |
| Color: | |
| Final unit: | |
| Text Description: | Plutonic country rock exposed at 4500 ft elevation on the ridge between Douglas and Fourpeaked, 4.5 km southwest of Douglas summit. Quartz monzodiorite countryrock. About 60% euhedral plagioclase (up to 2 mm long), 15% pale green to pale brown amphibole, 25% interstitial quartz and feldspar intergrowths, and minor opaque oxides. |
| Sample Location: |
