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SAMPLE INFO : 94SJP91

Sample ID:	94SJP91
Station ID:	94SJP91
Latitude:	62.38406109
Longitude:	-143.404912
Datum:	NAD83
Date Sampled:	1994-00-00
Sample Type 1:	Lava
Sample Type 2:	Flow
Field Lithology:	Rhyolite

Text Description:
Sample is from a rubbly flow outcrop on the south-west end of Tanada Lake. Fine grained, vesicular, holocrystalline, glomeroporphyritic with a matrix of cryptocrystalline material, plagioclase, opaque and a high relief mineral. Plagioclase phenocrysts are up to 3.37 mm and frequently have rounded edges, oscillatory zoning, and/or normal zoning. Opaque pseudomorphs after clinopyroxene? are up to 1.75 mm. Clinopyroxene phenocrysts are up to 0.1 mm. Opaque phenocrysts (not pseudomorphs) are up to 0.25 mm. 96.5% matrix, 3.3% plagioclase, 0.2% alteration.

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
94SJP91	62.38406109	-143.404912	Preece, S. J.	1994-00-00		Skookum Creek		Nabesna B-5; T7N, R11E, S17	Sample is from a rubbly flow outcrop on the south-west end of Tanada Lake. Fine grained, vesicular, holocrystalline, glomeroporphyritic with a matrix of cryptocrystalline material, plagioclase, opaque and a high relief mineral. Plagioclase phenocrysts are up to 3.37 mm and frequently have rounded edges, oscillatory zoning, and/or normal zoning. Opaque pseudomorphs after clinopyroxene? are up to 1.75 mm. Clinopyroxene phenocrysts are up to 0.1 mm. Opaque phenocrysts (not pseudomorphs) are up to 0.25 mm. 96.5% matrix, 3.3% plagioclase, 0.2% alteration.	94SJP91	Lava			Whole-rock	71.92	0.37	14.05	2.65	0.12	0.23	0.66	6.16	3.5	0.17	100.78	55	DCP	2.96	2.65	LOI=0.16	DCP		65	1032	39															65	587	19.1				9.4	3	11.2	7	1			1	2	84	20.4					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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