Sample: 93SJP11

Sample ID:	93SJP11 ^[1]
Station ID:	93SJP11
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:	Glassy block in talus from small knobs of Dome C higher up section at Site 7. Fine-grained, hypocrystalline, porphyritic with a matrix of cryptocrystalline material with perlitic cracks, feldspar, opaque and apatite?. Plagioclase phenocrysts (An44 - An55) are up to 0.22 mm. Orthopyroxene phenocrysts are up to 0.1 mm and are intensely pleochroic. Opaque phenocrysts are up to 0.3 mm. 97.7% matrix, 1.8% plagioclase, 0.1% orthopyroxene, 0.2% opaque, 0.3% 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5 Ma Wrangell Volcanic Field, Alaska, with an emphasis on the Skookum Creek volcanic complex: Miami University (Ohio) unpublished Ph.D. dissertation, 547 p.

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