Sample: 94SJP11B

Sample ID:	94SJP11B ^[1]
Station ID:	94SJP11B
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:	Block from brecciated material at Site 12. This unit is cut by a dike (94SJP11A). Fine grained, vesicular, hypocrystalline, intersertal, seriate to glomeroporphyritic with a matrix of brown glass, opaque, plagioclase, orthopyroxene, clinopyroxene and minor calcite. Plagioclase phenocrysts (An30-An64) are up to 7.5 mm and frequently have sieve textured cores, normal zoning, and overgrowth rims; oscillatory zoning is less common. Olivine phenocrysts are up to 0.5 mm and some have a rim of small orthopyroxene crystals. Orthopyroxene is up to 0.6 mm and some have clinopyroxene rims.
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5 Ma Wrangell Volcanic Field, Alaska, with an emphasis on the Skookum Creek volcanic complex: Miami University (Ohio) unpublished Ph.D. dissertation, 547 p.

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