Sample: 94SJP120

Sample ID:	94SJP120 ^[1]
Station ID:	94SJP120
AT Num:
Volcano:	Tanada Peak
Possible source:
Eruption:
Collector:	Preece, S. J.
Date sampled:	1994-00-00
Sample type 1:	Lava
Color:
Final unit:
Text Description:	Flow from Tanada Cinder Cone that forms the top of the Mesa at Site 15. Fine grained, holocrystalline, porphyritic with a matrix of mesostasis, opaque, plagioclase, olivine, and pyroxene?. Plagioclase phenocrysts are up to 0.4 mm, most are small laths; larger grains occasionally have resorbed edges, sieve textured zones. Olivine phenocrysts are up to 1.0 mm; some have skeletal habits; some have resorbtion embayments. Mode: 96.4% matrix, 0.2% plagioclase, 3.4% olivine.
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5 Ma Wrangell Volcanic Field, Alaska, with an emphasis on the Skookum Creek volcanic complex: Miami University (Ohio) unpublished Ph.D. dissertation, 547 p.