AVO Sample Information

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SAMPLE INFO : 94SJP81C

Sample ID:	94SJP81C
Station ID:	94SJP81C
Latitude:	62.3790673
Longitude:	-143.087688
Datum:	NAD83
Date Sampled:	1994-00-00
Sample Type 1:	Lava
Sample Type 2:	Flow
Field Lithology:	Andesite

Text Description:
Platy to locally massive flows adjacent to vent breccia and a dike (94SJP81B). Fine-grained, holocrystalline, pilotaxitic, intergranular, porphyritic with a matrix of plagioclase, opaque, orthopyroxene and calcite. Plagioclase phenocrysts (An 38 - An62) are up to 2 mm and have multiple sieve textured intermediate zones, complex zoning, and a few have resorbed rims. Orthopyroxene phenocrysts are up to 1.75 mm. Clinopyroxene phenocrysts are up to 1 mm. Olivine phenocrysts are up to 0.7 mm, most are ~0.1 mm, and altering to iddingsite with fine-grained pyroxene ± opaque coronas. Opaque phenocrysts are up to 0.2 mm.

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
94SJP81C	62.3790673	-143.087688	Preece, S. J.	1994-00-00		Skookum Creek		Nabesna B-5; T7N, R13E, S19	Platy to locally massive flows adjacent to vent breccia and a dike (94SJP81B). Fine-grained, holocrystalline, pilotaxitic, intergranular, porphyritic with a matrix of plagioclase, opaque, orthopyroxene and calcite. Plagioclase phenocrysts (An 38 - An62) are up to 2 mm and have multiple sieve textured intermediate zones, complex zoning, and a few have resorbed rims. Orthopyroxene phenocrysts are up to 1.75 mm. Clinopyroxene phenocrysts are up to 1 mm. Olivine phenocrysts are up to 0.7 mm, most are ~0.1 mm, and altering to iddingsite with fine-grained pyroxene ± opaque coronas. Opaque phenocrysts are up to 0.2 mm.	94SJP81C	Lava			Whole-rock	57.2	0.85	18.24	5.8	0.11	4.28	7.76	3.84	1.2	0.15	99.99	55	DCP	6.45	5.8	LOI=0.56	DCP		20.3	403	596															17	102	3.6				2.6	0.9	18.6	151	67			69	18	63	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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