Sample: 94SJP79A

Sample ID:	94SJP79A ^[1]
Station ID:	94SJP79A
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, plagioclase, alteration and orthopyroxene?. Plagioclase phenocrysts (An46 - An60) are up to 4.25 mm and occasionally have sieve textured zones, alteration, resorbed edges and/or oscillatory zoning. Orthopyroxene? phenocrysts, up to 1.3 mm, are now altered with only a few cores preserved. Clinopyroxene phenocrysts are up to 1.0 mm. Opaque phenocrysts are up to 0.45 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5 Ma Wrangell Volcanic Field, Alaska, with an emphasis on the Skookum Creek volcanic complex: Miami University (Ohio) unpublished Ph.D. dissertation, 547 p.

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