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SAMPLE INFO : 93SJP25

Sample ID:	93SJP25
Station ID:	93SJP25
Latitude:	62.47740701
Longitude:	-143.0743622
Datum:	NAD83
Date Sampled:	1993-00-00
Sample Type 1:	Lava
Sample Type 2:	Flow
Field Lithology:	Basaltic Andesite

Text Description:
Approximately 15' thick flow from near the base of the second andesite package at Site 1 in the Boyden Hills. Fine-grained, vesicular, diktytaxitic, holocrystalline, intergranular, seriate porphyritic with a matrix of mesostasis, opaque, plagioclase, and minor alteration around vesicles. Plagioclase phenocrysts (An27-An56) are up to 1.1 mm, and have occasional sieve textured zones, commonly display normal zoning with occasionally oscillatory zoning. Olivine phenocrysts are up to 0.8 mm with occasionally opaque inclusions, and some alteration. Orthopyroxene phenocrysts are up to 0.5 mm and some have clinopyroxene rims and occasionally opaque inclusions. Clinopyroxene phenocrysts are up to 0.1 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
93SJP25	62.47740701	-143.0743622	Preece, S. J.	1993-00-00		Skookum Creek		Nabesna B-5, T8N, R13E, S18	Approximately 15' thick flow from near the base of the second andesite package at Site 1 in the Boyden Hills. Fine-grained, vesicular, diktytaxitic, holocrystalline, intergranular, seriate porphyritic with a matrix of mesostasis, opaque, plagioclase, and minor alteration around vesicles. Plagioclase phenocrysts (An27-An56) are up to 1.1 mm, and have occasional sieve textured zones, commonly display normal zoning with occasionally oscillatory zoning. Olivine phenocrysts are up to 0.8 mm with occasionally opaque inclusions, and some alteration. Orthopyroxene phenocrysts are up to 0.5 mm and some have clinopyroxene rims and occasionally opaque inclusions. Clinopyroxene phenocrysts are up to 0.1 mm.	93SJP25	Lava			Whole-rock	55.5	1.1	17.86	6.65	0.12	5.27	7.93	3.84	1.15	0.2	100.11	55	DCP	7.35	6.65	LOI=0.32	DCP		20.9	416	549															20	131	5.1				1.5	2.2	21.5	165	101			59	40	65	17.1					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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