Sample: 91CND08
Sample ID: | 91CND08 [1] |
Station ID: | 91CND08 |
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: | Ice contact lava. 20—50 cm wide columns, curved and in rosettes. Porphyritic olivine-bearing two-pyroxene andesite. ~40% phenocrysts of plagioclase (1.1 x 0.4 mm), pyroxene (1.2 x 0.4 mm), olivine (0.7 x 0.5 mm), and opaque Fe-Ti oxides in a matrix of devitrified glass and subordinate microphenocrysts and microlites. Pl:px:ol ~ 3:2:0.5. |
Sample Location: |