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Sample: UT819

Sample ID: UT819 [1] [2] [3]
Station ID: Gold_Hill_I
AT Num:
Volcano:
Possible source:
Eruption:
Collector: Preece, S. J.
Date sampled:
Sample type 1: Tephra Fall
Color: white
Final unit:
Text Description: Crops out about 4 m above the HP tephra and is a thin, microfaulted bed with an average thickness of 1 cm and a maximum thickness of 2 cm. Continuous bed that is interbedded with massive, well-consolidated, mottled (10YR6/1 and 2.5Y7/1) grey silt with numerous charcoal flecks. Sharp and irregular lower contact; diffuse and streaky upper contact. Streaks in upper contact appear directional. Dark brown (organic/manganese?) blebs within the tephra and surrounding loess (not volcanic in origin). Black charcoal flecks occur within the tephra. Grey streaks near the base, usually at a high angle, that may be loess.
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] Late Pliocene Dawson Cut forest bed and new tephrochronological findings in the Gold Hill Loess, east-central Alaska, 2009

Pewe, T.L., Westgate, J.A., Preece, S.J., Brown, P.M., and Leavitt, S.W., 2009, Late Pliocene Dawson Cut forest bed and new tephrochronological findings in the Gold Hill Loess, east-central Alaska: Geological Society of America Bulletin, v. 121, n. 1-2, p. 294-320, doi: 10.1130/B26323.1 .