AVO Sample Information

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SAMPLE INFO : 94SJP84B

Sample ID:	94SJP84B
Station ID:	94SJP84B
Latitude:	62.38128962
Longitude:	-143.1632427
Datum:	NAD83
Date Sampled:	1994-00-00
Sample Type 1:	Tephra Fall
Sample Type 2:	Agglutinate
Field Lithology:	Andesite

Text Description:
Agglutinated material that forms walls and spatter ramparts. Fine grained, holocrystalline, seriate to glomeroporphyritic with a matrix of mesostasis, alteration, opaque and plagioclase. Plagioclase phenocrysts (An39 - An60) are up to 1.5 mm; both normal and oscillatory zoning is present; grains occasionally have sieve textured zones. Orthopyroxene phenocrysts are up to 1.0 mm and occasionally have sieve textured zones and/or opaque inclusions. Clinopyroxene phenocrysts are up to 1.32 mm. An altered phase, probably olivine, is present.

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
94SJP84B	62.38128962	-143.1632427	Preece, S. J.	1994-00-00		Skookum Creek		Nabesna B-5; T7N, R12E, S15	Agglutinated material that forms walls and spatter ramparts. Fine grained, holocrystalline, seriate to glomeroporphyritic with a matrix of mesostasis, alteration, opaque and plagioclase. Plagioclase phenocrysts (An39 - An60) are up to 1.5 mm; both normal and oscillatory zoning is present; grains occasionally have sieve textured zones. Orthopyroxene phenocrysts are up to 1.0 mm and occasionally have sieve textured zones and/or opaque inclusions. Clinopyroxene phenocrysts are up to 1.32 mm. An altered phase, probably olivine, is present.	94SJP84B	Tephra Fall	Cumulate		Whole-rock	57.94	1.1	17.67	6.39	0.11	3.64	7.01	4.18	1.13	0.3	100.38	55	DCP	7.08	6.39	LOI=0.49	DCP		16.8	451	555															22	137	4.2				2	1.8	19.2	188	22			26	35	70	18.2					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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