Sample: UT617

Sample ID:	UT617 ^[1] ^[2]
Station ID:	CRH47
AT Num:
Volcano:
Possible source:
Eruption:
Collector:	Westgate, J. A.
Date sampled:
Sample type 1:	Tephra Fall
Color:
Final unit:
Text Description:	Thin, discontinuous tephra with a maximum thickness of 3 cm. Occurs just over 4 m above the base of unit B (see Westgate and others, 2013). Pumiceous glass with sparse amounts of bubble-wall shards. Abundant hornblende (greenish-brown in color), hypersthene, and plagioclase; Fe-Ti oxides and oxyhornblende are present but not conspicuous.
Sample Location:

References Cited

[1] Tephrochronology, magnetostratigraphy and mammalian faunas of Middle and Early Pleistocene sediments at two sites on the Old Crow River, northern Yukon Territory, Canada, 2013

Westgate, J.A., Pearce, G.W., Preece, S.J., Schweger, C.E., Morlan, R.E., Pearce, N.J.G., and Perkins, T.W., 2013, Tephrochronology, magnetostratigraphy and mammalian faunas of Middle and Early Pleistocene sediments at two sites on the Old Crow River, northern Yukon Territory, Canada: Quaternary Research, v. 79, n. 1, p. 75-85.

[2] Trace-element analysis of volcanic glass shards by laser ablation inductively coupled plasma mass spectrometry: application to tephrochronological studies, 1994

Westgate, J.A., Perkins, W.T., Fuge, R., Pearce, N.J.G., and Wintle, A.G., 1994, Trace-element analysis of volcanic glass shards by laser ablation inductively coupled plasma mass spectrometry: application to tephrochronological studies: Applied Geochemistry, v. 9, n. 3, p. 323-335.

Alaska Volcano Observatory

Sample: UT617

References Cited

[1] Tephrochronology, magnetostratigraphy and mammalian faunas of Middle and Early Pleistocene sediments at two sites on the Old Crow River, northern Yukon Territory, Canada, 2013

[2] Trace-element analysis of volcanic glass shards by laser ablation inductively coupled plasma mass spectrometry: application to tephrochronological studies, 1994