AVO Sample Information

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SAMPLE INFO : 94SJP17

Sample ID:	94SJP17
Station ID:	94SJP17
Latitude:	62.29266982
Longitude:	-143.2590716
Datum:	NAD83
Date Sampled:	1994-00-00
Sample Type 1:	Lava
Sample Type 2:	Dike
Field Lithology:	Andesite

Text Description:
Vertical sheeted dike, trending E-W cutting through the brecciated unit (sBA9) at Site 12. Fine grained, holocrystalline, seriate porphyritic with a matrix of mesostasis, opaque and plagioclase. Plagioclase phenocrysts (An30 - An57) are up to 1.7 mm and some have sieve textured zones; the larger sieve textured grains can be oscillatory zoned; the smaller grains tend to have normal zoning. Orthopyroxene phenocrysts are up to 2.5 mm and some have clinopyroxene rims (up to 0.2 mm thick) or opaque inclusions. Olivine phenocrysts are up to 1.6 mm, but most are altered to serpentine. Clinopyroxene phenocrysts are up to 0.15 mm. 44.9% matrix, 39.5% plagioclase, 0.5% olivine, 0.3% altered olivine?, 2.4% clinopyroxene, 7.4% orthopyroxene, 5.0% 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
94SJP17	62.29266982	-143.2590716	Preece, S. J.	1994-00-00		Skookum Creek		Nabesna B-5; T6N, R12E, S19	Vertical sheeted dike, trending E-W cutting through the brecciated unit (sBA9) at Site 12. Fine grained, holocrystalline, seriate porphyritic with a matrix of mesostasis, opaque and plagioclase. Plagioclase phenocrysts (An30 - An57) are up to 1.7 mm and some have sieve textured zones; the larger sieve textured grains can be oscillatory zoned; the smaller grains tend to have normal zoning. Orthopyroxene phenocrysts are up to 2.5 mm and some have clinopyroxene rims (up to 0.2 mm thick) or opaque inclusions. Olivine phenocrysts are up to 1.6 mm, but most are altered to serpentine. Clinopyroxene phenocrysts are up to 0.15 mm. 44.9% matrix, 39.5% plagioclase, 0.5% olivine, 0.3% altered olivine?, 2.4% clinopyroxene, 7.4% orthopyroxene, 5.0% vesicles.	94SJP17	Lava			Whole-rock	58.4	0.68	17.1	5.64	0.1	5.79	7.35	3.6	1.08	0.11	99.18	55	DCP	6.18	5.64	LOI=0.19	DCP		19.5	481	568															15	97	3.5				2.7	1.4	19.1	141	216			123	64	63	17.2					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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