Sample: 91CND25
| Sample ID: | 91CND25 [1] |
| Station ID: | 91CND25 |
| AT Num: | |
| Volcano: | Douglas |
| Possible source: | |
| Eruption: | |
| Collector: | Nye, C. J. |
| Date sampled: | 1991-01-01 |
| Sample type 1: | Lava |
| Color: | |
| Final unit: | |
| Text Description: | Sample from outcrop at ~3000 ft on ridge dividing upper Spotted Glacier and striped glacier. Porphyritic two-pyroxene andesite. Phenocrysts of plagioclase (35%, up to 0.9 x 0.4 mm), pyroxene (10%, typically 0.5 x 0.2 mm), and subordinate chromite-bearing olivine in a matrix of devitrified glass and subordinate microphenocrysts and microlites. |
| Sample Location: |
