Sample: UT82

Sample ID:	UT82 ^[1] ^[2] ^[3] ^[4] ^[5] ^[6]
Station ID:	Fort_Selkirk
AT Num:
Volcano:
Possible source:
Eruption:
Collector:	Westgate, J. A.
Date sampled:
Sample type 1:	Tephra Fall
Color:
Final unit:
Text Description:	Prominent, 20-cm-thick bed in the uppermost part of the stratified sediments. It has a silty loam texture with abundant chunky and platy glass shards as well as pumice fragments. Conspicuous minerals include feldspar, hypersthene, biotite, hornblende, magnetite and ilmenite; minor minerals include apatite and a pink zircon.
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5 Ma Wrangell Volcanic Field, Alaska, with an emphasis on the Skookum Creek volcanic complex: Miami University (Ohio) unpublished Ph.D. dissertation, 547 p.

[2] Fission-track ages of late Cenozoic distal tephra beds in the Yukon Territory and Alaska, 1982

Naeser, N. D., Westgate, J. A., Hughes, O. L., and Pewe, T. L., 1982, Fission-track ages of late Cenozoic distal tephra beds in the Yukon Territory and Alaska: Canadian Journal of Earth Sciences [Journal Canadien des Sciences de la Terre], v. 19, n. 11, p. 2167-2178.

[3] Dating Early and Middle (Reid) Pleistocene glaciations in central Yukon by tephrochronology, 2001

Westgate, J.A., Preece, S.J., Froese, D.G., Walter, R.C., Sandhu, A.S., and Schweger, C.E., 2001, Dating Early and Middle (Reid) Pleistocene glaciations in central Yukon by tephrochronology: Quaternary Research, v. 56, n. 3, p. 335-348, doi: 10.1006/qres.2001. 2274 .

[4] Evidence of Quaternary climatic variations in a sequence of loess and related deposits at Birch Creek, Alaska: implications for the Stage 5 climatic chronology, 2001

McDowell, P.F., Edwards, M.E., 2001, Evidence of Quaternary climatic variations in a sequence of loess and related deposits at Birch Creek, Alaska: implications for the Stage 5 climatic chronology: Quaternary Science Reviews v. 20, p. 63-76.

[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] 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