Sample: 94SJP84B

Sample ID:	94SJP84B ^[1]
Station ID:	94SJP84B
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:	Agglutinated material that forms walls and spatter ramparts. Fine grained, holocrystalline, seriate to glomeroporphyritic with a matrix of mesostasis, alteration, opaque and plagioclase. Plagioclase phenocrysts (An39 - An60) are up to 1.5 mm; both normal and oscillatory zoning is present; grains occasionally have sieve textured zones. Orthopyroxene phenocrysts are up to 1.0 mm and occasionally have sieve textured zones and/or opaque inclusions. Clinopyroxene phenocrysts are up to 1.32 mm. An altered phase, probably olivine, is present.
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5 Ma Wrangell Volcanic Field, Alaska, with an emphasis on the Skookum Creek volcanic complex: Miami University (Ohio) unpublished Ph.D. dissertation, 547 p.

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