Sample: J127

Sample ID:	J127 ^[1]
Station ID:	Jan_Lake
AT Num:
Volcano:
Possible source:
Eruption:
Collector:	Unknown, Unknown
Date sampled:
Sample type 1:	Tephra Fall
Color:
Final unit:
Text Description:	Vesicular, blocky, and pumiceous shards, commonly with mineral inclusions, forming a discrete layer < 1mm thick. Glass chemistry has a high and narrow range of SiO2 and distinctively low K2O values.
Sample Location:

References Cited

[1] Chronology and glass chemistry of tephra and cryptotephra horizons from lake sediments in northern Alaska, USA, 2017

Monteath, A.J., van Hardenbroek, M., Davies, L.J., Froese, D.G., Langdon, P.G., Xu, X., and Edwards, M.E., 2017, Chronology and glass chemistry of tephra and cryptotephra horizons from lake sediments in northern Alaska, USA: Quaternary Research, v. 88, p. 1-10.

Alaska Volcano Observatory

Sample: J127

References Cited

[1] Chronology and glass chemistry of tephra and cryptotephra horizons from lake sediments in northern Alaska, USA, 2017