Sample: 94SJP89A

Sample ID:	94SJP89A ^[1]
Station ID:	94SJP89A
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 silicic dike, trending N135°E forming a wall-like, platy outcrop on the south-west end of Tanada Lake. Fine grained, holocrystalline, porphyritic with a matrix of feldspar, opaque, amphibole? or biotite?, and a small high relief mineral. Plagioclase phenocrysts are up to 3.62 mm, and are frequently rounded; some have oscillatory zoning. Clinopyroxene phenocrysts are up to 1.2 mm and tend to have brown/opaque rims. Opaque phenocrysts are up to 0.25 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5 Ma Wrangell Volcanic Field, Alaska, with an emphasis on the Skookum Creek volcanic complex: Miami University (Ohio) unpublished Ph.D. dissertation, 547 p.

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