AVO Sample Information

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SAMPLE INFO : 94SJP58A

Sample ID:	94SJP58A
Station ID:	94SJP58
Latitude:	62.29
Longitude:	-143.2387938
Datum:	NAD83
Date Sampled:	1994-00-00
Sample Type 1:	Lava
Sample Type 2:	Dike
Field Lithology:	Basaltic Andesite

Text Description:
A 5-10' thick dike cutting through the brecciated unit (sBA9) at Site 12. There is a 1-2 inch bake zone along the sides of the dike. Fine grained, vesicular, hypocrystalline, trachytic, seriate porphyritic with a matrix of mesostasis, opaque, clinopyroxene, olivine, plagioclase, orthopyroxene?, and glassy patches near vesicles. Plagioclase phenocrysts (An31-An59) are up to 4.25 mm, most are less than 0.9 mm and the larger grains may have sieve textured cores. Olivine phenocrysts are up to 1.25 mm with rare opaque inclusions. Orthopyroxene phenocrysts are up to 0.9 mm. Mode: 54.8% matrix, 34.5% plagioclase, 2.3% olivine, 2.1% clinopyroxene, 0.7% orthopyroxene, 5.6% vesicles.

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
94SJP58	62.29	-143.2387938	Preece, S. J.	1994-00-00		Skookum Creek		Nabesna B-5, T6N, R12E, S20	A 5-10' thick dike cutting through the brecciated unit (sBA9) at Site 12. There is a 1-2 inch bake zone along the sides of the dike. Fine grained, vesicular, hypocrystalline, trachytic, seriate porphyritic with a matrix of mesostasis, opaque, clinopyroxene, olivine, plagioclase, orthopyroxene?, and glassy patches near vesicles. Plagioclase phenocrysts (An31-An59) are up to 4.25 mm, most are less than 0.9 mm and the larger grains may have sieve textured cores. Olivine phenocrysts are up to 1.25 mm with rare opaque inclusions. Orthopyroxene phenocrysts are up to 0.9 mm. Mode: 54.8% matrix, 34.5% plagioclase, 2.3% olivine, 2.1% clinopyroxene, 0.7% orthopyroxene, 5.6% vesicles.	94SJP58A	Lava			Whole-rock	55.87	1.1	17.41	6.73	0.12	5.67	7.68	3.84	1.17	0.3	99.84	55	DCP	7.41	6.73	LOI=0.1	DCP		15.9	332	559															19	137	6.7				1.9	1	21	168	153			70	62	59	17.8					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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