AVO Sample Information

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SAMPLE INFO : ACT-1080

Sample ID:	ACT-1080
Station ID:	WL4
Latitude:	63.4
Longitude:	-150.79998
Datum:	NAD83
Sample Type 1:	Tephra Fall

Text Description:
Sample ID WL4C-2. Tephra sample from 286 cm depth in core. Four-to-six-cm-thick, dense, brown, silt layer that exhibits high MS. Difficult to identify tephra in the core stratigraphies because it is dispersed within the upper portion of a clay unit that is about 10 cm thick.

References:

Three Holocene tephras identified in lacustrine sediment cores from the Wonder Lake area, Denali National Park and Preserve, Alaska, USA

Late Pleistocene and Holocene tephrostratigraphy of interior Alaska and Yukon: Key beds and chronologies over the past 30,000 years

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
WL4	63.4	-150.79998	Child, J. K.		< 10060 ± 70 14C AMS; 498; Radiocarbon dated wood fragment from below tephra in Wonder Lake core WL18 (lab ID CAMS-12264). 243-245 cm depth.			Sediment core recovered from Wonder Lake, Denali National Park and Preserve, Alaska, with a modified Nesje corer. Coordinates not provided, location absent from Figure 2 of Child and others (1998) so generic location in Wonder Lake selected.	Sample ID WL4C-2. Tephra sample from 286 cm depth in core. Four-to-six-cm-thick, dense, brown, silt layer that exhibits high MS. Difficult to identify tephra in the core stratigraphies because it is dispersed within the upper portion of a clay unit that is about 10 cm thick.	ACT-1080	Tephra Fall	Cumulate		Glass		61.14	1.18	16.76			2.29	5.11	4.59	1.8		100	498	EMP	7.01		Cl=0.1; H2O=1.91	EMP

SAMPLE LOCATION

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