AVO Sample Information

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SAMPLE INFO : 94SJP79B

Sample ID:	94SJP79B
Station ID:	94SJP79B
Latitude:	62.31
Longitude:	-143.3446
Datum:	NAD83
Date Sampled:	1994-00-00
Sample Type 1:	Lava
Field Lithology:	Andesite

Text Description:
Downdropped block from surrounding cliffs. Fine grained, holocrystalline, seriate porphyritic with a matrix of mesostasis, opaque, feldspar, alteration and an altered phase. Plagioclase phenocrysts (An36 - An53) are up to 2.87 mm and some have oscillatory zoning, altered melt inclusions, sieve textured zones, and rounded rims. An altered phase, orthopyroxene?, is up to 1.2 mm and is sometimes rimmed with clinopyroxene. Clinopyroxene phenocrysts are up to 1.87 and some have resorbed rims and/or opaque inclusions. Opaque phenocrysts are up to 0.4 mm.

References:

Geochemical variation in the less than 5 Ma Wrangell Volcanic Field, Alaska, with an emphasis on the Skookum Creek volcanic complex

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
94SJP79B	62.31	-143.3446	Preece, S. J.	1994-00-00		Skookum Creek		Nabesna B-5; T6N, R11E, S10	Downdropped block from surrounding cliffs. Fine grained, holocrystalline, seriate porphyritic with a matrix of mesostasis, opaque, feldspar, alteration and an altered phase. Plagioclase phenocrysts (An36 - An53) are up to 2.87 mm and some have oscillatory zoning, altered melt inclusions, sieve textured zones, and rounded rims. An altered phase, orthopyroxene?, is up to 1.2 mm and is sometimes rimmed with clinopyroxene. Clinopyroxene phenocrysts are up to 1.87 and some have resorbed rims and/or opaque inclusions. Opaque phenocrysts are up to 0.4 mm.	94SJP79B	Lava			Whole-rock	57.9	1.06	17.32	6.15	0.11	3.7	6.26	4.25	1.7	0.34	100.02	55	DCP	6.79	6.15	LOI=1.16	DCP		31	489	486															28	229	7.1				6.3	2.6	17	136	47			45	43	71	18.6					55	XRF: Rb, Zr, Nb, Th, U, Ni, Ga; DCP: Ba, Sc, V; MX: Sr, Y, Cr, Cu, Zn;

SAMPLE LOCATION

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