AVO Sample Information

Alaska Volcano Observatory

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SAMPLE INFO : 81-ARh-42

Sample ID:	81-ARh-42
Station ID:	81-ARh-42
Latitude:	62.3448
Longitude:	-143.55238
Datum:	NAD83
Date Sampled:	1981-00-00
Sample Type 1:	Lava
Sample Type 2:	Flow

Text Description:
Wrangell Lava. Young basalts and basaltic andesites (Pleistocene). Erupted from a vent, or group of vents, on the north flank of Tanada shield volcano. Flows. Chiefly dark gray to grayish-black, thin to medium (2-5 m), olivine basalt and basaltic andesite flows. * * * Whole rock K-Ar age of sample 81-ASj-86 (map locality 19) is 0.97 +/- 0.05 Ma (table 2).

References:

Geologic map of the Nabesna B-6 Quadrangle, south-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	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
81-ARh-42	62.3448	-143.55238	Richter, D. H.	1981-00-00		Tanada Peak		Wrangell Lava; Nabesna B-6 quadrangle. Latitude and longitude derived from paper map.	Wrangell Lava. Young basalts and basaltic andesites (Pleistocene). Erupted from a vent, or group of vents, on the north flank of Tanada shield volcano. Flows. Chiefly dark gray to grayish-black, thin to medium (2-5 m), olivine basalt and basaltic andesite flows. * * * Whole rock K-Ar age of sample 81-ASj-86 (map locality 19) is 0.97 +/- 0.05 Ma (table 2).	81-ARh-42	Lava			Whole-rock	53.2	1.08	17.6	7.73	0.14	6.62	8.44	3.43	1.15	0.32	100.14	2321	NN	2.69	5.3	H2OP=0.27; H2OM=0.02; CO2=0.01	RAPIDA

SAMPLE LOCATION

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