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SAMPLE INFO : 94SJP40A

Sample ID:	94SJP40A
Station ID:	94SJP40A
Latitude:	62.43657124
Longitude:	-143.1951901
Datum:	NAD83
Date Sampled:	1994-00-00
Sample Type 1:	Tephra Fall
Sample Type 2:	Scoria
Field Lithology:	Andesite

Text Description:
Scoria from Site 6. Fine-grained, vesicular, intersertal, hypocrystalline, porphyritic with a matrix is very dark glass. Plagioclase phenocrysts (An39 - An61) have two populations: 3.05-0.4 mm, with sieve textured zones; and 1.6-0.05 mm with complex zoning and lacking sieve textured zones. Olivine phenocrysts are 1.05-0.1 mm and some have skeletal habits or opaque inclusions. Clinopyroxene phenocrysts are up to 0.8 and twinning is common. 61.5% matrix, 4.9% plagioclase, 0.4% olivine, 0.7% clinopyroxene, 32.5% 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
94SJP40A	62.43657124	-143.1951901	Preece, S. J.	1994-00-00		Skookum Creek		Nabesna B-5; T8N, R12E, S33	Scoria from Site 6. Fine-grained, vesicular, intersertal, hypocrystalline, porphyritic with a matrix is very dark glass. Plagioclase phenocrysts (An39 - An61) have two populations: 3.05-0.4 mm, with sieve textured zones; and 1.6-0.05 mm with complex zoning and lacking sieve textured zones. Olivine phenocrysts are 1.05-0.1 mm and some have skeletal habits or opaque inclusions. Clinopyroxene phenocrysts are up to 0.8 and twinning is common. 61.5% matrix, 4.9% plagioclase, 0.4% olivine, 0.7% clinopyroxene, 32.5% vesicles.	94SJP40A	Tephra Fall	Cumulate		Whole-rock	58.31	1.58	16.27	7.54	0.13	3.38	6.73	4.16	1.7	0.4	99.59	55	DCP	8.28	7.54	LOI=-0.21	DCP		32	560	472	25.2	59.1		27.8	5.7	1.7	6.9		5.2		3		2.8	0.4	34	252	9.7				5.1	2.7	23.1	230	29			28	91	85	19.3					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, Cr, Cu, Zn;

SAMPLE LOCATION

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