AVO Sample Information

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SAMPLE INFO : 94SJP123

Sample ID:	94SJP123
Station ID:	94SJP123
Latitude:	62.25515631
Longitude:	-143.4665763
Datum:	NAD83
Date Sampled:	1994-00-00
Sample Type 1:	Lava
Sample Type 2:	Flow

Text Description:
Blocky andesite flow. Outcrop is spire-like with 1 -2’ diameter blocks in a finer matrix of ash or altered andesite at Site 15. Fine grained, vesicular, holocrystalline, seriate porphyritic with a matrix of mesostasis, opaque and plagioclase. Plagioclase phenocrysts (An39 - An60) are up to 3.55 mm and commonly have sieve textured zones, oscillatory zoning, and resorption embayments. Orthopyroxene phenocrysts are up to 1.2 mm. Clinopyroxene phenocrysts are up to 2.62 mm. Opaque phenocrysts are up to 0.4 mm. Trachyandesite.

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
94SJP123	62.25515631	-143.4665763	Preece, S. J.	1994-00-00		Skookum Creek		Nabesna A-5; T5N, R10E, S1	Blocky andesite flow. Outcrop is spire-like with 1 -2’ diameter blocks in a finer matrix of ash or altered andesite at Site 15. Fine grained, vesicular, holocrystalline, seriate porphyritic with a matrix of mesostasis, opaque and plagioclase. Plagioclase phenocrysts (An39 - An60) are up to 3.55 mm and commonly have sieve textured zones, oscillatory zoning, and resorption embayments. Orthopyroxene phenocrysts are up to 1.2 mm. Clinopyroxene phenocrysts are up to 2.62 mm. Opaque phenocrysts are up to 0.4 mm. Trachyandesite.	94SJP123	Lava			Whole-rock	58.89	1.19	17.22	7.44	0.13	2.87	5.47	4.63	1.85	0.36	99.71	55	DCP	8.18	7.44	LOI=-0.07	DCP		37	460	516															32	286	8.6				6.5	2.6	12.9	128	4			8	32	70	19.4					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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