Sample: 94SJP43
| Sample ID: | 94SJP43 [1] |
| Station ID: | 94SJP43 |
| AT Num: | |
| Volcano: | Skookum Creek |
| Possible source: | |
| Eruption: | |
| Collector: | Preece, S. J. |
| Date sampled: | 1994-00-00 |
| Sample type 1: | Tephra Fall |
| Color: | |
| Final unit: | |
| Text Description: | Scoria from above 94SJP42A at Site 6. Fine-grained, vesicular, hypocrystalline, intersertal, porphyritic with a matrix of brown glass, opaque and plagioclase. Plagioclase phenocrysts (An41 - An62) are 0.9-0.1 mm; most grains larger than 0.4 mm are sieve textured and some have overgrowth rims; grains 0.25-0.05 mm lack sieve textures and are rarely zoned. 50.7% matrix, 2.5% plagioclase, 3.9% olivine, 0.8% clinopyroxene, 42.1% vesicles. Clinopyroxene phenocrysts are up to 0.25 mm. |
| Sample Location: |