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SAMPLE INFO : 93SJP29

Sample ID:	93SJP29
Station ID:	93SJP29
Latitude:	62.43073744
Longitude:	-143.1032472
Datum:	NAD83
Date Sampled:	1993-00-00
Sample Type 1:	Lava
Sample Type 2:	Dike
Field Lithology:	Basaltic Andesite

Text Description:
Approximately 2 m thick, subvertical dike trending N45E and cutting through Dome A at Site 2. Fine-grained, seriate, pilotaxitic, very altered, intergranular, hypocrystalline with a matrix of alteration, opaque, plagioclase, lath shaped clinopyroxene, mesostasis, and a very small amount of brown glass. Plagioclase phenocrysts (An28-An58) are 1.35-0.05 mm, sieve textured cores are common; most have normal zoning; some have oscillatory zoning. Clinopyroxene phenocrysts have two populations, 0.6 -0.2 mm and 0.15-0.5 (lath shaped). Olivine phenocrysts are 1.9 - 0.15 mm; most are completely altered, with only a few cores remaining; some have opaque inclusions.

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
93SJP29	62.43073744	-143.1032472	Preece, S. J.	1993-00-00		Skookum Creek		Nabesna B-5, T8N, R12E, S36	Approximately 2 m thick, subvertical dike trending N45E and cutting through Dome A at Site 2. Fine-grained, seriate, pilotaxitic, very altered, intergranular, hypocrystalline with a matrix of alteration, opaque, plagioclase, lath shaped clinopyroxene, mesostasis, and a very small amount of brown glass. Plagioclase phenocrysts (An28-An58) are 1.35-0.05 mm, sieve textured cores are common; most have normal zoning; some have oscillatory zoning. Clinopyroxene phenocrysts have two populations, 0.6 -0.2 mm and 0.15-0.5 (lath shaped). Olivine phenocrysts are 1.9 - 0.15 mm; most are completely altered, with only a few cores remaining; some have opaque inclusions.	93SJP29	Lava			Whole-rock	53.89	0.77	17.76	5.87	0.12	5.16	9	3.43	1.18	0.16	100.03	55	DCP	6.48	5.87	LOI=2.57	DCP		18.5	392	633															14	87	2.7				1.1	1.2	20.8	171	42			83	74	59	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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