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Sample: UT845

Sample ID: UT845 [1] [2] [3]
Station ID: Eva_I
AT Num:
Volcano:
Possible source: Drum
Eruption:
Collector: Preece, S. J.
Date sampled:
Sample type 1: Tephra Fall
Color: white
Final unit:
Text Description: 3.5-cm-thick, horizontal tephra with abundant mafic minerals that is interbedded with grey silt and oxidation streaks. Occurs in three layers with a maximum thickness of 6.5 cm. The basal 0.5 cm consists of sand-sized, crystal-rich tephra overlain by 2 cm of finer-grained, cross-bedded tephra with abundant mafic minerals. The upper 4 cm is the primary bed; it is cream-colored unit and overlain by 3 cm of cross-bedded crystal-rich sand.
Sample Location:

References Cited

[1] Tephrostratigraphy of the late Cenozoic Gold Hill loess, Fairbanks area, Alaska, 1991

Preece, S. J., 1991, Tephrostratigraphy of the late Cenozoic Gold Hill loess, Fairbanks area, Alaska: University of Toronto (Canada) M.S. thesis, 186 p.

[2] Tephrochronology of late Cenozoic loess at Fairbanks, central Alaska, 1999

Preece, S. J., Westgate, J. A., Stemper, B. A., and Pewe, T. L., 1999, Tephrochronology of late Cenozoic loess at Fairbanks, central Alaska: Geological Society of America Bulletin, v. 111, n. 1, p. 71-90.

[3] Changing ideas on the identity and stratigraphic significance of the Sheep Creek tephra beds in Alaska and the Yukon Territory, northwestern North America, 2008

Westgate, J.A., Preece, S.J., Froese, D.G., Pearce, N.J.G., Roberts, R.G., Demuro, M., Hart, W.K., and Perkins, W., 2008, Changing ideas on the identity and stratigraphic significance of the Sheep Creek tephra beds in Alaska and the Yukon Territory, northwestern North America: Quaternary International, v. 178, n. 1, p. 183-209, doi: 10.1016/j.quaint.2007.03.009.