Sample: 94SJP98

Sample ID:	94SJP98 ^[1]
Station ID:	94SJP98
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:	A dike 2-4’ thick, trending N75°E and subvertical, cutting thorough intercaldera flows just below the main peak at Tanada Peak. Fine grained, vesicular, holocrystalline, seriate to glomeroporphyritic with a matrix of mesostasis, opaque, plagioclase and clinopyroxene. Plagioclase phenocrysts (An34 - An64) are up to 4.0 mm and occasionally display sieve textured zones, rounded rims, and/or oscillatory zoning. Clinopyroxene phenocrysts are up to 0.75 mm. Orthopyroxene phenocrysts are up to 0.9 mm and many are altered.
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5 Ma Wrangell Volcanic Field, Alaska, with an emphasis on the Skookum Creek volcanic complex: Miami University (Ohio) unpublished Ph.D. dissertation, 547 p.

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