Sample: 94SJP111

Sample ID:	94SJP111 ^[1]
Station ID:	94SJP111
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:	Flows 15-20’ thick with well developed vesicular/rubbly flow tops. Outcrop weathers into large blocks and plates. Overlies black scree that may be vitrophyre shown by Lowe et al., 1983. Fine grained, vesicular, hypocrystalline, porphyritic with a matrix of brown glass, opaque, plagioclase, clinopyroxene and orthopyroxene. Plagioclase phenocrysts (An57 - An63) are up to 5.17 mm and occasionally have sieve textured zones, pyroxene inclusions, resorption embayments and/or oscillatory zoning. Orthopyroxene phenocrysts are up to 3.0 mm. Clinopyroxene phenocrysts are up to 3.5 mm.
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5 Ma Wrangell Volcanic Field, Alaska, with an emphasis on the Skookum Creek volcanic complex: Miami University (Ohio) unpublished Ph.D. dissertation, 547 p.

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