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SAMPLE INFO : 93SJP43

Sample ID:	93SJP43
Station ID:	93SJP43
Latitude:	62.47796259
Longitude:	-143.0726956
Datum:	NAD83
Date Sampled:	1993-00-00
Sample Type 1:	Lava
Sample Type 2:	Flow
Field Lithology:	Basaltic Andesite

Text Description:
Flow immediately overlying stratified drift. At the base and top of the flow is palagonite-rick breccia that may have interacted with water causing small steam explosions. The flow is at the base of the middle andesite package at Site 1 in the Boyden Hills. Fine-grained, vesicular, diktytaxitic, hypocrystalline, intersertal, intergranular, trachytic, porphyritic to glomeroporphyritic with a matrix of brown glass, opaque, plagioclase, and clinopyroxene. Plagioclase phenocrysts (An45-An63) are up to 2.2 mm, often have sieve textured cores, frequently have normal zoning and occasionally have oscillatory zoning. Olivine phenocrysts are up to 1.12 mm and some have opaque inclusions or occasional alteration along the rim; one grain has a rim of small orthopyroxene crystals. Clinopyroxene phenocrysts up to 0.6 mm. Orthopyroxene phenocrysts are up to 0.9 mm and occasionally have clinopyroxene rims.

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
93SJP43	62.47796259	-143.0726956	Preece, S. J.	1993-00-00		Skookum Creek		Nabesna B-5, T8N, R13E, S18	Flow immediately overlying stratified drift. At the base and top of the flow is palagonite-rick breccia that may have interacted with water causing small steam explosions. The flow is at the base of the middle andesite package at Site 1 in the Boyden Hills. Fine-grained, vesicular, diktytaxitic, hypocrystalline, intersertal, intergranular, trachytic, porphyritic to glomeroporphyritic with a matrix of brown glass, opaque, plagioclase, and clinopyroxene. Plagioclase phenocrysts (An45-An63) are up to 2.2 mm, often have sieve textured cores, frequently have normal zoning and occasionally have oscillatory zoning. Olivine phenocrysts are up to 1.12 mm and some have opaque inclusions or occasional alteration along the rim; one grain has a rim of small orthopyroxene crystals. Clinopyroxene phenocrysts up to 0.6 mm. Orthopyroxene phenocrysts are up to 0.9 mm and occasionally have clinopyroxene rims.	93SJP43	Lava			Whole-rock	56.34	1.05	17.34	6.4	0.12	5.3	7.8	3.65	1.22	0.2	100.18	55	DCP	7.11	6.4	LOI=0.53	DCP		22.3	399	513															19	128	4.4				1.9	1	21.2	175	114			61	49	65	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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