AVO Sample Information

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SAMPLE INFO : Kit-64_220-226

Sample ID:	Kit-64_220-226
Station ID:	Kit-64
Latitude:	66.4613
Longitude:	-164.1394
Datum:	NAD83
Sample Type 1:	Tephra Fall

Text Description:
Sub-sample of 1 m thick layer of volcanic air-fall tephra. All samples between 243 and 155 cm yielded a similar basltic-tachybasaltic to basaltic andesitic glass composition pointing to a single eruption source for the entire layer. However, differences in particle size indicated different eruption phases of unknown duration. Sharp edges and pronounced vesicles of glass shards indicate a low stage of alteration or only very limited redeposition processes.

References:

Mid-Wisconsin to Holocene Permafrost and Landscape Dynamics based on a Drained Lake Basin Core from the Northern Seward Peninsula, Northwest 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
Kit-64	66.4613	-164.1394	Unknown, Unknown	0000-00-00	< 41500 ± 1500 14C AMS; 12981; Sediments directly underlying tephra (lab number Poz-49851).	Espenberg		Approximately 4 m long sediment core from a drained thermokarst lake basin on the northern Seward Peninsula in western Arctic Alaska. Coordinates given in degrees, minutes, seconds and converted to decimal degrees; datum not specified, assumed to be NAD83.	Sub-sample of 1 m thick layer of volcanic air-fall tephra. All samples between 243 and 155 cm yielded a similar basltic-tachybasaltic to basaltic andesitic glass composition pointing to a single eruption source for the entire layer. However, differences in particle size indicated different eruption phases of unknown duration. Sharp edges and pronounced vesicles of glass shards indicate a low stage of alteration or only very limited redeposition processes.	Kit-64_220-226	Tephra Fall	Cumulate		Glass		49.5	2.77	15.85	9.98	0.15	5.62	9.86	4.15	1.54	0.59	100	12981	EMP		9.98	Cl=0.04; F=0	EMP

SAMPLE LOCATION

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