AVO Sample Information

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SAMPLE INFO : 94SJP18

Sample ID:	94SJP18
Station ID:	94SJP18
Latitude:	62.29266982
Longitude:	-143.2590716
Datum:	NAD83
Date Sampled:	1994-00-00
Sample Type 1:	Lava
Sample Type 2:	Dike
Field Lithology:	Basaltic Andesite

Text Description:
Subvertical, 10-12' thick dike trending N70E that cuts through the brecciated material unit (unit sBA9) at Site 12. Fine grained, vesicular, holocrystalline, seriate porphyritic with a matrix of mesostasis, opaque, plagioclase, clinopyroxene and olivine?. Plagioclase phenocrysts (An32-An62) are up to 3.75 mm and often display strong oscillatory zoning, normal zoning is also observed, some sieve textured zones are present. Orthopyroxene phenocrysts are up to 2.0 mm and some have clinopyroxene rims. Olivine phenocrysts are up to 1.4 mm and some are altered. Clinopyroxene phenocrysts are up to 1.9 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
94SJP18	62.29266982	-143.2590716	Preece, S. J.	1994-00-00		Skookum Creek		Nabesna B-5, T6N, R12E, S19	Subvertical, 10-12' thick dike trending N70E that cuts through the brecciated material unit (unit sBA9) at Site 12. Fine grained, vesicular, holocrystalline, seriate porphyritic with a matrix of mesostasis, opaque, plagioclase, clinopyroxene and olivine?. Plagioclase phenocrysts (An32-An62) are up to 3.75 mm and often display strong oscillatory zoning, normal zoning is also observed, some sieve textured zones are present. Orthopyroxene phenocrysts are up to 2.0 mm and some have clinopyroxene rims. Olivine phenocrysts are up to 1.4 mm and some are altered. Clinopyroxene phenocrysts are up to 1.9 mm.	94SJP18	Lava			Whole-rock	55.85	0.98	18.33	6.62	0.12	4.65	7.89	3.68	1.1	0.32	99.35	55	DCP	7.26	6.62	LOI=0.42	DCP		16.9	334	641															18	114	6.2				3	2.2	20.6	175	79			51	64	60	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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