AVO Sample Information

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SAMPLE INFO : 93SJP3

Sample ID:	93SJP3
Station ID:	93SJP3
Latitude:	62.36267714
Longitude:	-143.0782427
Datum:	NAD83
Date Sampled:	1993-00-00
Sample Type 1:	Lava
Sample Type 2:	Dome
Field Lithology:	Dacite

Text Description:
Rubbly outcrop of Dome E at Site 9. Fine-grained, hypocrystalline, porphyritic to glomeroporphyritic with a matrix of colorless glass, plagioclase and opaque. Plagioclase phenocrysts (An39 - An55) are up to 2.4 mm and commonly have large melt inclusions, complex zoning and minor resorption along rims; some grains have amphibole and opaque inclusions. Amphibole phenocrysts are up to 1.5 mm with brown-green pleochroism and frequently have opaque or feldspar inclusions; one grain has an orthopyroxene core. Orthopyroxene phenocrysts are up to 1.25 mm and are strongly pleochroic; some have opaque inclusions and a few grains have amphibole rims. Opaque phenocrysts are up to 0.3 mm. 75.4% matrix, 15.5% plagioclase, 1.7% orthopyroxene, 1.6% amphibole, 4.7% 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
93SJP3	62.36267714	-143.0782427	Preece, S. J.	1993-00-00		Skookum Creek		Nabesna B-5; T7N, R13E, S19	Rubbly outcrop of Dome E at Site 9. Fine-grained, hypocrystalline, porphyritic to glomeroporphyritic with a matrix of colorless glass, plagioclase and opaque. Plagioclase phenocrysts (An39 - An55) are up to 2.4 mm and commonly have large melt inclusions, complex zoning and minor resorption along rims; some grains have amphibole and opaque inclusions. Amphibole phenocrysts are up to 1.5 mm with brown-green pleochroism and frequently have opaque or feldspar inclusions; one grain has an orthopyroxene core. Orthopyroxene phenocrysts are up to 1.25 mm and are strongly pleochroic; some have opaque inclusions and a few grains have amphibole rims. Opaque phenocrysts are up to 0.3 mm. 75.4% matrix, 15.5% plagioclase, 1.7% orthopyroxene, 1.6% amphibole, 4.7% vesicles.	93SJP3	Lava			Whole-rock	67.62	0.49	15.99	3.3	0.09	1.21	3.42	4.8	2	0.16	99.05	55	DCP	3.7	3.3	LOI=0.89	DCP		38	706	385	17.5	34.7		14.9	2.5	0.9	2.5		2.3		1.3		1.5	0.2	16	173	6.8				4.5	1.9	5.5	44	bdl			3	10	53	16.1					55	XRF: Rb, Zr, Nb, Th, U, Ni, Ga; DCP: Ba, La, Ce, Nd, Sm, Eu, Gd, Dy, Er, Yb, Lu, Sc, V; MX: Sr, Y, Cu, Zn;

SAMPLE LOCATION

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