Sample: 93SJP27

Sample ID:	93SJP27 ^[1]
Station ID:	93SJP27
AT Num:
Volcano:	Skookum Creek
Possible source:
Eruption:
Collector:	Preece, S. J.
Date sampled:	1993-00-00
Sample type 1:	Lava
Color:
Final unit:
Text Description:	Approximately 10’ thick vertical dike cutting up through silicic material Dome A at Site 2. Fine-grained, holocrystalline, porphyritic with a matrix of mesostasis, opaque, plagioclase and alteration. Plagioclase phenocrysts (An30 - An58) are up to 3.45 mm and some have complex zoning with prussian blue extinction, resorption embayments; both twinned and untwinned grains are present. Clinopyroxene phenocrysts are up to 2.0 mm. Orthopyroxene is up to 0.8 mm and some have opaque inclusions.
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5 Ma Wrangell Volcanic Field, Alaska, with an emphasis on the Skookum Creek volcanic complex: Miami University (Ohio) unpublished Ph.D. dissertation, 547 p.

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