AVO Sample Information

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SAMPLE INFO : 93SJP14B

Sample ID:	93SJP14B
Station ID:	93SJP14B
Latitude:	62.40934712
Longitude:	-143.0982457
Datum:	NAD83
Date Sampled:	1993-00-00
Sample Type 1:	Tephra Fall
Sample Type 2:	Agglutinate
Field Lithology:	Basaltic Andesite

Text Description:
Agglutinate from large blocks that have fallen from higher up section at Site 7. This sample is from the contact between red scoriaceous material and gray massive material. Fine-grained, holocrystalline, seriate porphyritic with a matrix of mesostasis, opaque, plagioclase and alteration. Plagioclase phenocrysts (An45-An62) are up to 1 mm, some display sieve textured zones or rarely oscillatory zoning, and normal zoning is common. Orthopyroxene phenocrysts are up to 0.8 mm and frequently display clinopyroxene rims. Clinopyroxene phenocrysts are up to 0.5 mm. An altered phase, up to 0.7 mm, 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
93SJP14B	62.40934712	-143.0982457	Preece, S. J.	1993-00-00		Skookum Creek		Nabesna B-5, T7N, R12E, S12	Agglutinate from large blocks that have fallen from higher up section at Site 7. This sample is from the contact between red scoriaceous material and gray massive material. Fine-grained, holocrystalline, seriate porphyritic with a matrix of mesostasis, opaque, plagioclase and alteration. Plagioclase phenocrysts (An45-An62) are up to 1 mm, some display sieve textured zones or rarely oscillatory zoning, and normal zoning is common. Orthopyroxene phenocrysts are up to 0.8 mm and frequently display clinopyroxene rims. Clinopyroxene phenocrysts are up to 0.5 mm. An altered phase, up to 0.7 mm, is present.	93SJP14B	Tephra Fall	Cumulate		Whole-rock	55.51	0.87	17.78	6.48	0.1	4.74	8.51	3.24	1.2	0.12	99.65	55	DCP	7.12	6.48	LOI=1.42	DCP		23.3	422	721															16	110	3.1				6.7	0.5	22.9	183	93			66	90	64	18					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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