Sample: UT613

Sample ID:	UT613 ^[1] ^[2] ^[3] ^[4] ^[5] ^[6] ^[7]
Station ID:	UT613
AT Num:
Volcano:
Possible source:
Eruption:	Old Crow Tephra
Collector:	Westgate, J. A.
Date sampled:
Sample type 1:	Tephra Fall
Color:
Final unit:
Text Description:	From Preece et al. (2011): 35 to 45 cm thick. Tephra in periglacial fining-upward sand and silt aeolian unit that overlies distal outwash deposit and underlies a reworked, slightly organic to peaty silt deposit. It is weakly laminated to massively bedded within massive loess near top of eolian unit. Ice-wedge casts are located at the top of aeolian unit and locally deform OCt (Waythomas et al., 1993).
Sample Location:

References Cited

[1] Isothermal plateau fission-track age of the late Pleistocene Old Crow Tephra, Alaska, 1988

Westgate, John, 1988, Isothermal plateau fission-track age of the late Pleistocene Old Crow Tephra, Alaska: Geophysical Research Letters, v. 15, n. 4, p. 376-379.

[2] Quaternary geology and late-Quaternary environments of the Holitna Lowland and Chuilnuk-Kiokluk Mountains region, interior southwestern Alaska, 1990

Waythomas, C. F., 1990, Quaternary geology and late-Quaternary environments of the Holitna Lowland and Chuilnuk-Kiokluk Mountains region, interior southwestern Alaska: University of Colorado Ph.D. dissertation, 305 p.

[3] A catalogue of late Cenozoic tephra beds in the Klondike Goldfields and adjacent areas, Yukon Territory, 2011

Preece, S.J., Westgate, J.A., Froese, D.G., Pearce, N.J.G., and Perkins, W.T., 2011, A catalogue of late Cenozoic tephra beds in the Klondike Goldfields and adjacent areas, Yukon Territory: Canadian Journal of Earth Sciences, v. 48, p. 1386-1418, doi: 10.1139/e10-110

[4] Old Crow tephra across eastern Beringia: a single cataclysmic eruption at the close of Marine Isotope Stage 6, 2011

Preece, S.J., Pearce, N.J.G., Westgate, J.A., Froese, D.G., Jensen, B.J.L., and Perkins, W.T., 2011, Old Crow tephra across eastern Beringia: a single cataclysmic eruption at the close of Marine Isotope Stage 6: Quaternary Science Reviews, v. 30, p. 2069-2099, doi:10.1016/j.quascirev.2010.04.020 .

[5] 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.

[6] A 3-my record of Pliocene-Pleistocene loess in interior Alaska, 1990

Westgate, J.A., Stemper, B.A., and Pewe, T.L., 1990, A 3-my record of Pliocene-Pleistocene loess in interior Alaska: Geology, v. 18, p. 858-861.

[7] Isothermal plateau fission-track ages of hydrated glass shards from silicic tephra beds, 1989

Westgate, J.A., 1989, Isothermal plateau fission-track ages of hydrated glass shards from silicic tephra beds: Earth and Planetary Science Letters, v. 95, n. 3, p. 226-234.

Alaska Volcano Observatory