Sample: 94SJP79B

Sample ID:	94SJP79B ^[1]
Station ID:	94SJP79B
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:	Downdropped block from surrounding cliffs. Fine grained, holocrystalline, seriate porphyritic with a matrix of mesostasis, opaque, feldspar, alteration and an altered phase. Plagioclase phenocrysts (An36 - An53) are up to 2.87 mm and some have oscillatory zoning, altered melt inclusions, sieve textured zones, and rounded rims. An altered phase, orthopyroxene?, is up to 1.2 mm and is sometimes rimmed with clinopyroxene. Clinopyroxene phenocrysts are up to 1.87 and some have resorbed rims and/or opaque inclusions. Opaque phenocrysts are up to 0.4 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5 Ma Wrangell Volcanic Field, Alaska, with an emphasis on the Skookum Creek volcanic complex: Miami University (Ohio) unpublished Ph.D. dissertation, 547 p.

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