Sample: 94SJP50B

Sample ID:	94SJP50B ^[1]
Station ID:	94SJP50B
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:	Dike cutting through 94SJP50A. The dike is 5’ thick, trending N90E, and is columnar jointed. Fine-grained, vesicular, holocrystalline, weakly pilotaxitic, porphyritic with a matrix of mesostasis, opaque, plagioclase and red alteration. Plagioclase phenocrysts (An42 - An58) have two populations 3.5-0.15 mm with some sieve textured cores or intermediate zones, and complex zoning; and 0.15-0.05 mm needles. Orthopyroxene phenocrysts are 1.0-0.1 mm,. Clinopyroxene phenocrysts are 0.7-0.1 mm and twinning is common.
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5 Ma Wrangell Volcanic Field, Alaska, with an emphasis on the Skookum Creek volcanic complex: Miami University (Ohio) unpublished Ph.D. dissertation, 547 p.

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