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SAMPLE INFO : 94SJP74B

Sample ID:	94SJP74B
Station ID:	94SJP74B
Latitude:	62.27183221
Longitude:	-143.3193496
Datum:	NAD83
Date Sampled:	1994-00-00
Sample Type 1:	Lava
Sample Type 2:	Flow
Field Lithology:	Basaltic Andesite

Text Description:
At least 5' thick flow that is cut by a dike (94SJP74A) the second flow in the South Pass section. Fine grained, vesicular, hypocrystalline, trachytic, seriate porphyritic with a matrix of pale brown glass, opaque, plagioclase, orthopyroxene and clinopyroxene. Plagioclase phenocrysts (An38-An58) are up to 2.62 mm and occasionally have minor sieve textured zones or normal zoning. Orthopyroxene phenocrysts are up to 1.75 mm and occasionally have thin clinopyroxene rims. Olivine phenocrysts are up to 0.1 mm and grains can be altered with a rim of small orthopyroxene crystals. Clinopyroxene phenocrysts are up to 0.1 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
94SJP74B	62.27183221	-143.3193496	Preece, S. J.	1994-00-00		Skookum Creek		Nabesna B-5, T6N, R11E, S26	At least 5' thick flow that is cut by a dike (94SJP74A) the second flow in the South Pass section. Fine grained, vesicular, hypocrystalline, trachytic, seriate porphyritic with a matrix of pale brown glass, opaque, plagioclase, orthopyroxene and clinopyroxene. Plagioclase phenocrysts (An38-An58) are up to 2.62 mm and occasionally have minor sieve textured zones or normal zoning. Orthopyroxene phenocrysts are up to 1.75 mm and occasionally have thin clinopyroxene rims. Olivine phenocrysts are up to 0.1 mm and grains can be altered with a rim of small orthopyroxene crystals. Clinopyroxene phenocrysts are up to 0.1 mm.	94SJP74B	Lava			Whole-rock	55.59	1.34	17.97	7.5	0.13	4.34	7.31	4.16	1.12	0.36	100.18	55	DCP	8.3	7.5	LOI=0.13	DCP		16.4	358	590															28	230	7.3				3.3	0.9	19.3	168	39			45	56	79	18.9					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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