AVO Sample Information

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SAMPLE INFO : 79AWs 6a

Sample ID:	79AWs 6a
Station ID:	79AWs 6a
Latitude:	57.044
Longitude:	-157.4053987528
Datum:	NAD83
Date Sampled:	1979-01-01
Sample Type 1:	Lava
Sample Type 2:	Dike
Field Lithology:	Andesite

Text Description:
Dark-greenish-gray (5 G 4/1), porphyritic andesite (S; basalt G) dike intruding Mesozoic sedimentary rocks. Major minerals are clinopyroxene and plagioclase (An 58). Abundant opaque oxides. Glomeroporphyritic phenocrysts of augite and sparse plagioclase in a groundmass of plagioclase, opaque minerals, and devitrified glass. Some augite phenocrysts are altered to calcite and uralite. Weak development of flow foliation as indicated by plagioclase laths in groundmass. Minor alteration of plagioclase phenocrysts. Associated with Yantarni volcanic center.

References:

Map and tables showing geochronology and whole-rock geochemistry of selected samples, Ugashik and part of Karluk quadrangles, 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
79AWs 6a	57.044	-157.4053987528	Wilson, F. H.	1979-01-01		Yantarni		Ugashik A-5, Yantarni	Dark-greenish-gray (5 G 4/1), porphyritic andesite (S; basalt G) dike intruding Mesozoic sedimentary rocks. Major minerals are clinopyroxene and plagioclase (An 58). Abundant opaque oxides. Glomeroporphyritic phenocrysts of augite and sparse plagioclase in a groundmass of plagioclase, opaque minerals, and devitrified glass. Some augite phenocrysts are altered to calcite and uralite. Weak development of flow foliation as indicated by plagioclase laths in groundmass. Minor alteration of plagioclase phenocrysts. Associated with Yantarni volcanic center.	79AWs 6a	Lava			Whole-rock	52.5	0.8	15	8	0.14	6.42	10.6	2.2	1.04	0.28	99.35	4092	XRF	4.7	3.7	CO2=1.33; H2OP=0.75; H2OM=0.9	XRF

SAMPLE LOCATION

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