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SAMPLE INFO : Preece_1999_Gold_Hill_Loess_HH_average

Sample ID:	Preece_1999_Gold_Hill_Loess_HH_average
Station ID:	Gold Hill Loess Regional Tephra
Latitude:	64.9
Longitude:	-147.89997
Datum:	NAD83
Sample Type 1:	Tephra Fall

Text Description:
Type I beds have a cream, pink, or gray color; they contain less than 20% phenocrysts and have bubblewall shards, pumice with large vesicles, glass spheres, and, typically, small amounts of dark brown glass shards. Major minerals are feldspar, orthopyroxene, and clinopyroxene with minor or trace amounts of green and red amphibole, titanomagnetite, ilmenite, apatite, zircon, and biotite. The composition reported here is the average of four samples: UT816, UT817, UT825, UT826

References:

Tephrochronology of late Cenozoic loess at Fairbanks, central Alaska

GEOCHEM DATA

StationID	Latitude	Longitude	Geologist	DateVisited	Age Info	Volcano	Eruption	Location Description	Text Description	Sample ID	Sample Type 1	Sample Type 2	Final Unit	Material	Coeff	SiO2	TiO2	Al2O3	FeOT	MnO	MgO	CaO	Na2O	K2O	P2O5	Total-majors	REF majors	METH majors	Fe2O3/Fe203T orig	FeO/FeOT orig	Volatiles csv	METH volatiles	Cs	Rb	Ba	Sr	La	Ce	Pr	Nd	Sm	Eu	Gd	Tb	Dy	Ho	Er	Tm	Yb	Lu	Y	Zr	Nb	Hf	Ta	Pb	Th	U	Sc	V	Cr	Fe	Co	Ni	Cu	Zn	Ga	Mo	As	Na	K	Ref trace1	METH trace1	Rb	Ba	Sr	La	Ce	Nd	Sm	Eu	Gd	Dy	Er	Yb	Lu	Y	Zr	Nb	Pb	Th	U	Sc	Ti	V	Cr	Ni	Cu	Zn	Ga	Ref trace2	METH trace2	Light csv	Halogen csv	other major csv	other lile csv	other ree csv	other hfse csv	other hpe csv	other tm csv	other misc csv
Gold Hill Loess Regional Tephra	64.9	-147.89997	Preece, S. J.					Tephra occuring primarily in the Gold Hill Loess, Gold Hill area of Fairbanks, Alaska. Tephras identified in 13 stratigraphic sections in the area; geochemical data of samples reported here are averages calculated from analyses of multiple tephra correlated across different stratigraphic locations in the area. Individual sample IDs are noted in the sample descriptions. Note that tephra units only located in one stratigraphic section are not included here and are listed by individual sample ID (see Preece et al. 1999 footnotes of tables 1 and 2).	Type I beds have a cream, pink, or gray color; they contain less than 20% phenocrysts and have bubblewall shards, pumice with large vesicles, glass spheres, and, typically, small amounts of dark brown glass shards. Major minerals are feldspar, orthopyroxene, and clinopyroxene with minor or trace amounts of green and red amphibole, titanomagnetite, ilmenite, apatite, zircon, and biotite. The composition reported here is the average of four samples: UT816, UT817, UT825, UT826	Preece_1999_Gold_Hill_Loess_HH_average	Tephra Fall	Cumulate		Glass		74.2	0.4	14.35	2.57	0.2	0.28	1.89	4.6	1.86			996	EMP		2.57	Cl=0.13; H2O=3.81	EMP	1.26		570		12.12	29.9		19.4	5.48	1.46		1.04					4.8	0.79				3.47	0.25		2.56	0.96	15.4							80						996	INAA

SAMPLE LOCATION

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