Sample: 93SJP33


Sample ID: 93SJP33 [1]
Station ID: 93SJP33
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: Blocky, rubbly outcrop from the summit of Dome A at Site 2. Fine grained, vesicular, holocrystalline, porphyritic with a matrix of equigranular feldspar, quartz?, opaque, zircon and altered patches. Plagioclase phenocrysts are up to 2.0 mm. Symplectic intergrowths of feldspar and quartz are up to 0.15 mm. Opaque phenocrysts are up to 0.4 mm. Zircon phenocrysts are up to 0.2 mm. An altered phase up to 0.95 mm, amphibole? or biotite?, is present.
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5 Ma Wrangell Volcanic Field, Alaska, with an emphasis on the Skookum Creek volcanic complex: Miami University (Ohio) unpublished Ph.D. dissertation, 547 p.