Sample: 96-ARh-59L
| Sample ID: | 96-ARh-59L [1] [2] |
| Station ID: | 96-ARh-59 |
| AT Num: | |
| Volcano: | Akutan |
| Possible source: | |
| Eruption: | |
| Collector: | Richter, D. H. |
| Date sampled: | 1996-00-00 |
| Sample type 1: | Lava |
| Color: | |
| Final unit: | lbc |
| Text Description: | Qocd - older caldera wall rocks (Pleistocene). Dome. Small dome or thick flow of banded, mixed magma, of porphyritic high-silica andesite. Light bands (62.8% SiO2, loc. 9, table 1) are medium gray and consist of small phenocrysts of plagioclase (5-10%, 1 mm), and clinopyroxene ( trace-2%, <1 mm) in a trachyitic groundmass of plagioclase microlites |
| Sample Location: |
