Sample: 93SJP6

Sample ID:	93SJP6 ^[1]
Station ID:	93SJP6
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:	Massive, platy flow underneath a lahar at Site 9. Fine-grained, holocrystalline, seriate to glomeroporphyritic with a matrix of cryptocrystalline material, plagioclase, opaques and alteration. Matrix has a 'mothy' look caused by patches of commonly oriented plagioclase needles and small crystals. Plagioclase phenocrysts (An42 - An64) are up to 0.7 mm and commonly are oscillatory zoned; some have resorbed rims. Orthopyroxene are up to 0.62 mm and are intensely pleochroic; some have opaque inclusions. Clinopyroxene phenocrysts are up to 0.25 mm. Opaque phenocrysts are up to 0.35 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5 Ma Wrangell Volcanic Field, Alaska, with an emphasis on the Skookum Creek volcanic complex: Miami University (Ohio) unpublished Ph.D. dissertation, 547 p.

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