Sample: 94SJP57

Sample ID:	94SJP57 ^[1]
Station ID:	94SJP57
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:	At least 30’ thick flow at the base of unit nA1 at Site 3. Fine-grained, holocrystalline, intergranular, seriate porphyritic with a matrix of mesostasis, opaque, alteration and calcite. Plagioclase phenocrysts (An 29 - An59) are up to 1.2 mm and display complex zoning. Orthopyroxene phenocrysts are up to 1.1 mm and some have clinopyroxene rims, sieve textured zones, and a few have resorbed rims. Clinopyroxene phenocrysts are up to 0.1 mm. 47.3% matrix, 39.7% plagioclase, 0.2% clinopyroxene, 9.5% orthopyroxene, 0.9% alteration, 2.4% vesicles.
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5 Ma Wrangell Volcanic Field, Alaska, with an emphasis on the Skookum Creek volcanic complex: Miami University (Ohio) unpublished Ph.D. dissertation, 547 p.

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