AVO Sample Information

Alaska Volcano Observatory

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SAMPLE INFO : 73AM31

Sample ID:	73AM31
Station ID:	73AM31
Latitude:	57.82
Longitude:	-156.426
Datum:	NAD83
Date Sampled:	1973-01-01
Sample Type 1:	Lava
Field Lithology:	Andesite

Text Description:
Two-pyroxene vesicular andesite. Phenocrysts of plagioclase (19%), hornblende (2%), and trace clinopyroxene, orthopyroxene, olivine, and quartz in a microlite-rich groundmass (60%).

References:

Geology of the Ugashik-Mount Peulik volcanic center, 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
73AM31	57.82	-156.426	Miller, T. P.	1973-01-01		Mafic Knob 500		Basalt plug between Peulik and Ukinrek	Two-pyroxene vesicular andesite. Phenocrysts of plagioclase (19%), hornblende (2%), and trace clinopyroxene, orthopyroxene, olivine, and quartz in a microlite-rich groundmass (60%).	73AM31	Lava			Whole-rock	54.1	0.95	19.2	8.4	0.2	4.2	8.2	2.7	1	0.22		3583	XRF	6	3.3	CO2=0.05; F=0; H2OP=0.56; H2OM=0.2	XRF: CO2; RAPIDA: H2OP, H2OM;		28	276	412	< 10	29													19	107	< 10								< 20			< 10	11	81						3583	XRF-EDS

SAMPLE LOCATION

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