AVO Sample Information

Alaska Volcano Observatory

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SAMPLE INFO : UT706

Sample ID:	UT706
Station ID:	Trader_Mountain
Latitude:	55.5
Longitude:	-161.89998
Datum:	NAD83
Sample Type 1:	Tephra Fall
Sample Type 2:	Pumice

Text Description:
Given the location and compositional similarity to Dawson tephra, the pumice clast is presumed to be part of the C2 caldera forming eruption of ELVC.

References:

Old Crow tephra across eastern Beringia: a single cataclysmic eruption at the close of Marine Isotope Stage 6

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
Trader_Mountain	55.5	-161.89998	Unknown, Unknown				-24050--	Large clasts collected from the flanks of Trader Mountain, located on the SW Alaska Peninsula about 15 km north of the caldera rim of Emmons Lake volcanic center (ELVC). No coordinates provided so generic location selected on Trader Mountain.	Given the location and compositional similarity to Dawson tephra, the pumice clast is presumed to be part of the C2 caldera forming eruption of ELVC.	UT706	Tephra Fall	Cumulate		Glass		74.06	0.25	13.68	2.01	0.06	0.22	1.29	4.56	3.66			10271	EMP		2.01	Cl=0.21; H2O=3.56	EMP	7.22	114	1140	121	33.1	64.1	9.02	37.6	9.61	2.01	10.15	1.62	9.89	2.14	7	1	7.28	1.22	66.2	446	13	12.02	0.92		11.55	4.71														10271	ICP

SAMPLE LOCATION

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