Sample: FC-82a


Sample ID: FC-82a [1]
Station ID: FC-82
AT Num:
Volcano: Fisher
Possible source:
Eruption:
Collector: Unknown, Unknown
Date sampled: 2000-07-15
Sample type 1: Lava
Color:
Final unit:
Text Description: Second, lower ignimbrite seen. Several surge layers, interbedded by welded flow layers. These may also be water-laid lava, as lava seems pillow-like. Angular pumice clasts in stratified (phreatomagmatic surge?) beds suggest minimal transport. Welded flow / lava beds are ~15-20 m thick, then alluvial bed containing reworked glass bits ~ 1m thick (suggesting large time gap between low flow and overlying cinders. 10 m of red agglomerate cinders overly that. There may be a cap rock (Fisher Tuff?) above the cinders in a distant outcrop Cinders above lower PF / lava. Red, aphyric
Sample Location:

References Cited

[1] Volcanism on Unimak Island, Alaska, USA: a special focus on Shishaldin and Fisher volcanoes, 2003

Stelling, P. L., 2003, Volcanism on Unimak Island, Alaska, USA: a special focus on Shishaldin and Fisher volcanoes: University of Alaska Fairbanks unpublished Ph.D. dissertation, 193 p. and one CD-ROM.