Sample: 91CND32B
Sample ID: | 91CND32B [1] |
Station ID: | 91CND32B |
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 ice contact lava exposed at the ice edge in small valley 7 km directly east and downslope from Douglas summit. Porphyritic andesite containing roughly equal amounts of sub-millimeter sized plagioclase and pyroxene in a glassy to devitrified microlite-rich groundmass. |
Sample Location: |