AVO Sample Information

Alaska Volcano Observatory

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SAMPLE INFO : 79AM75

Sample ID:	79AM75
Station ID:	79AM75
Latitude:	57.745
Longitude:	-156.373
Datum:	NAD83
Date Sampled:	1975-01-01
Sample Type 1:	Lava
Field Lithology:	Andesite

Text Description:
Porphyritic two-pyroxene andesite. Phenocrysts of plagioclase (37%), orthopyroxene (6%), and clinopyroxene (3%) with trace olivine in a groundmass of pale-brown glass.

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
79AM75	57.745	-156.373	Miller, T. P.	1975-01-01		Peulik		northwest crater rim of Peulik; cone building andesite flows	Porphyritic two-pyroxene andesite. Phenocrysts of plagioclase (37%), orthopyroxene (6%), and clinopyroxene (3%) with trace olivine in a groundmass of pale-brown glass.	79AM75	Lava			Whole-rock	54.3	0.8	18.7	7.6	0.15	4.8	8.8	3.1	1	0.15		3583	XRF	5.3	2.8	CO2=0.11; F=0.03; H2OP=0.21; H2OM=0.31	XRF: CO2, F; RAPIDA: H2OP, H2OM;		30	365	439	20	26													20	111	11								45			15	26	72						3583	XRF-EDS

SAMPLE LOCATION

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