Sample: 91CNI05
| Sample ID: | 91CNI05 [1] | ||||||||||
| Station ID: | 91CNI05 | ||||||||||
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| Volcano: | Iliamna | ||||||||||
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| Collector: | Nye, C. J. | ||||||||||
| Date sampled: | 1991-01-01 | ||||||||||
| Sample type 1: | Lava | ||||||||||
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| Text Description: | Porphyritic two-pyroxene andesite. Phenocrysts of plagioclase, clinopyroxene, orthopyroxene, and opaque oxides in a groundmass of microlites with subordinate interstitial clear glass. One of several diverse lithologies collected from single location consisting of avalanche debris sitting on top of Red Glacier at ~2400 foot elevation. This location is at a fork in the glacier, and these samples could have come from either the main cone or North Twin. This location covered by subsequent rock/snow/ice avalanches (seen in landsat image on GE). "i" denotes fist-sized rounded blobs of macroscopically different magma enclosed in homogeneous host. | ||||||||||
| Sample Location: |
  Legend ✕
200 km 100 mi |
