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SAMPLE INFO : 94SJP72

Sample ID:	94SJP72
Station ID:	94SJP72
Latitude:	62.40434679
Longitude:	-143.0993564
Datum:	NAD83
Date Sampled:	1994-00-00
Sample Type 1:	Lava
Field Lithology:	Basaltic Andesite

Text Description:
Highest point on the wall-like capping andesite at Site 7. Fine grained, holocrystalline, intergranular, seriate porphyritic with a matrix of mesostasis, opaque, clinopyroxene and alteration. Plagioclase phenocrysts (An37-An61) are up to 0.75 mm and some display sieve textured zones, oscillatory zoning, or have pyroxene inclusions. Orthopyroxene phenocrysts are up to 0.9 mm and frequently have clinopyroxene rims. Clinopyroxene phenocrysts are up to 0.4 mm. An altered phase, up to 0.25 mm, is present. Mode: 39.9% matrix, 47.2% plagioclase, 1.6% clinopyroxene, 4.9% orthopyroxene, 5.8% alteration, 0.6% 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
94SJP72	62.40434679	-143.0993564	Preece, S. J.	1994-00-00		Skookum Creek		Nabesna B-5, T7N, R12E, S12	Highest point on the wall-like capping andesite at Site 7. Fine grained, holocrystalline, intergranular, seriate porphyritic with a matrix of mesostasis, opaque, clinopyroxene and alteration. Plagioclase phenocrysts (An37-An61) are up to 0.75 mm and some display sieve textured zones, oscillatory zoning, or have pyroxene inclusions. Orthopyroxene phenocrysts are up to 0.9 mm and frequently have clinopyroxene rims. Clinopyroxene phenocrysts are up to 0.4 mm. An altered phase, up to 0.25 mm, is present. Mode: 39.9% matrix, 47.2% plagioclase, 1.6% clinopyroxene, 4.9% orthopyroxene, 5.8% alteration, 0.6% vesicles.	94SJP72	Lava			Whole-rock	56.7	0.82	18.37	5.8	0.11	4.51	7.83	3.47	1.54	0.06	100.03	55	DCP	6.45	5.8	LOI=0.75	DCP		25	481	711															17	105	3				4.7	0.7	21.7	165	29			46	70	63	18.2					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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