Sample: 94SJP3
Sample ID: | 94SJP3 [1] |
Station ID: | 94SJP3 |
AT Num: | |
Volcano: | Skookum Creek |
Possible source: | |
Eruption: | |
Collector: | Preece, S. J. |
Date sampled: | 1994-00-00 |
Sample type 1: | Lava |
Color: | |
Final unit: | |
Text Description: | 25-30 foot thick flow at the base of Site 12. Directly overlies 94SJP2 dipping at N60E, 45W. Fine grained, holocrystalline, trachytic, intergranular, seriate porphyritic with a matrix of green alteration, plagioclase, opaques, and clinopyroxene. Plagioclase phenocrysts (An40-An58) are up to 2 mm and some of the largest grains are zoned and riddled with alteration and clinopyroxene inclusions. Clinopyroxene phenocrysts are up to 0.25 mm. An altered phase is present (olivine?). |
Sample Location: |