Sample: 85CNS03
| Sample ID: | 85CNS03 [1] [2] |
| Station ID: | 85CNS03 |
| AT Num: | |
| Volcano: | Spurr |
| Possible source: | |
| Eruption: | |
| Collector: | Nye, C. J. |
| Date sampled: | 1985-01-01 |
| Sample type 1: | Lava |
| Color: | |
| Final unit: | |
| Text Description: | Sample of juvenile block from block-and-as flows deposited on the debris avalanche formed during flank collapse of ancestral Mt. Spurr (“pyroclastic fan”; sample PF-03 of Nye and Turner (1990). From exposure high up in canyon immediately south of Crater Peak. Same small equant plag as S1 but big px megacrysts/phenocrysts/xenocryst clots. 15-20% cpx up to 5 mm diameter. Upper part of this canyon has a couple of b&a flows w/ avalanche debris of altered material between, perhaps vent clearing. |
| Sample Location: |
