AVO Sample Information

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SAMPLE INFO : 94SJP98

Sample ID:	94SJP98
Station ID:	94SJP98
Latitude:	62.29988115
Longitude:	-143.4860247
Datum:	NAD83
Date Sampled:	1994-00-00
Sample Type 1:	Lava
Sample Type 2:	Dike
Field Lithology:	Andesite

Text Description:
A dike 2-4’ thick, trending N75°E and subvertical, cutting thorough intercaldera flows just below the main peak at Tanada Peak. Fine grained, vesicular, holocrystalline, seriate to glomeroporphyritic with a matrix of mesostasis, opaque, plagioclase and clinopyroxene. Plagioclase phenocrysts (An34 - An64) are up to 4.0 mm and occasionally display sieve textured zones, rounded rims, and/or oscillatory zoning. Clinopyroxene phenocrysts are up to 0.75 mm. Orthopyroxene phenocrysts are up to 0.9 mm and many are altered.

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
94SJP98	62.29988115	-143.4860247	Preece, S. J.	1994-00-00		Skookum Creek		Nabesna B-5; T6N, R10E, S13	A dike 2-4’ thick, trending N75°E and subvertical, cutting thorough intercaldera flows just below the main peak at Tanada Peak. Fine grained, vesicular, holocrystalline, seriate to glomeroporphyritic with a matrix of mesostasis, opaque, plagioclase and clinopyroxene. Plagioclase phenocrysts (An34 - An64) are up to 4.0 mm and occasionally display sieve textured zones, rounded rims, and/or oscillatory zoning. Clinopyroxene phenocrysts are up to 0.75 mm. Orthopyroxene phenocrysts are up to 0.9 mm and many are altered.	94SJP98	Lava			Whole-rock	58.88	0.75	17.4	5.56	0.1	4.34	7.27	3.63	1.02	0.21	100.52	55	DCP	6.17	5.56	LOI=0.83	DCP		13.4	530	638															15	98	3.6				3.9	1.1	18.1	151	71			61	55	58	17.3					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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