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SAMPLE INFO : UT788

Sample ID:	UT788
Station ID:	West_Ridge
Latitude:	64.9
Longitude:	-147.79997
Datum:	NAD83
Sample Type 1:	Tephra Fall
Field Epoch Guess:	Oligocene

Text Description:
Discontinuous bed ranging from 2 to 10 cm thick. Occurs in pods that are interbedded with banded to platy, grey to brown silt with oxidation stringers and bands. Faint lamination in the darker, basal part of the tephra. Upper and lower contacts are sharp although there is localized interdigitation with loess. Oxidatation common.

References:

Tephrostratigraphy of the late Cenozoic Gold Hill loess, Fairbanks area, Alaska

Tephrochronology of late Cenozoic loess at Fairbanks, central Alaska

Age of Sheep Creek Tephra (Pleistocene) in central Alaska from thermoluminescence dating of bracketing loess

Late Pliocene Dawson Cut forest bed and new tephrochronological findings in the Gold Hill Loess, east-central Alaska

Recurring middle Pleistocene outburst floods in east-central Alaska

GEOCHEM DATA

StationID	Latitude	Longitude	Geologist	Location Description	Text Description	Sample ID	Sample Type 1	Sample Type 2	Material	SiO2	TiO2	Al2O3	FeOT	MnO	MgO	CaO	Na2O	K2O	Total-majors	REF majors	METH majors	FeO/FeOT orig	Volatiles csv	METH volatiles
West_Ridge	64.9	-147.79997	Preece, S. J.	Small road cut on the West Ridge of the University of Alaska, Fairbanks campus. Location imprecisely georeferenced from Figure 4 in Preece et al. (1999).	Discontinuous bed ranging from 2 to 10 cm thick. Occurs in pods that are interbedded with banded to platy, grey to brown silt with oxidation stringers and bands. Faint lamination in the darker, basal part of the tephra. Upper and lower contacts are sharp although there is localized interdigitation with loess. Oxidatation common.	UT788	Tephra Fall	Cumulate	Glass	70.71	0.52	14.5	3.7	0.18	Reported analytical value of zero. Reported standard deviation value of zero. 0	2.08	4.43	3.88	95.16	56	EMP	3.7	Cl=0.17	EMP
West_Ridge	64.9	-147.79997	Preece, S. J.	Small road cut on the West Ridge of the University of Alaska, Fairbanks campus. Location imprecisely georeferenced from Figure 4 in Preece et al. (1999).	Discontinuous bed ranging from 2 to 10 cm thick. Occurs in pods that are interbedded with banded to platy, grey to brown silt with oxidation stringers and bands. Faint lamination in the darker, basal part of the tephra. Upper and lower contacts are sharp although there is localized interdigitation with loess. Oxidatation common.	UT788	Tephra Fall	Cumulate	Glass	70.48	0.54	14.47	3.33	0.1	0.51	1.96	4.57	3.84		10291	EMP	3.33	Cl=0.21; H2O=3.39	EMP
West_Ridge	64.9	-147.79997	Preece, S. J.	Small road cut on the West Ridge of the University of Alaska, Fairbanks campus. Location imprecisely georeferenced from Figure 4 in Preece et al. (1999).	Discontinuous bed ranging from 2 to 10 cm thick. Occurs in pods that are interbedded with banded to platy, grey to brown silt with oxidation stringers and bands. Faint lamination in the darker, basal part of the tephra. Upper and lower contacts are sharp although there is localized interdigitation with loess. Oxidatation common.	UT788	Tephra Fall	Cumulate	Glass	70.71	0.52	14.5	3.7	0.18		2.08	4.43	3.88		996	EMP	3.7	Cl=0.17; H2O=4.84	EMP

SAMPLE LOCATION

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