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:

References Cited

[1] Geochemical variation in the less than 5 Ma Wrangell Volcanic Field, Alaska, with an emphasis on the Skookum Creek volcanic complex, 1997

Preece, S. J., 1997, Geochemical variation in the less than 5 Ma Wrangell Volcanic Field, Alaska, with an emphasis on the Skookum Creek volcanic complex: Miami University (Ohio) unpublished Ph.D. dissertation, 547 p.