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SAMPLE INFO : 94SJP85B

Sample ID:	94SJP85B
Station ID:	94SJP85B
Latitude:	62.38351194
Longitude:	-143.1749094
Datum:	NAD83
Date Sampled:	1994-00-00
Sample Type 1:	Lava
Sample Type 2:	Dike
Field Lithology:	Andesite

Text Description:
Platy dike trending N30°E. Fine grained, hypocrystalline, intersertal, seriate to glomeroporphyritic with a matrix of brown glass, opaque, plagioclase, clinopyroxene and minor alteration patches. Plagioclase phenocrysts (An44 - An59) are up to 2.33 mm and often have sieve textured cores with overgrowth rims; both normal and oscillatory zoning are common; altered inclusions are common; occasionally grains have overgrowth rims over rounded cores or resorption embayments. Orthopyroxene phenocrysts are up to 2.2 mm and occasionally have clinopyroxene rims or opaque inclusions. Clinopyroxene phenocrysts are up to 0.75 mm and occasionally have opaque inclusions. Opaque phenocrysts up to 0.4 mm. An altered phase, olivine?, is present. A second altered phase, unidentifiable, now is opaque with a rim of very fine pyroxene.

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
94SJP85B	62.38351194	-143.1749094	Preece, S. J.	1994-00-00		Skookum Creek		Nabesna B-5; T7N, R12E, S15	Platy dike trending N30°E. Fine grained, hypocrystalline, intersertal, seriate to glomeroporphyritic with a matrix of brown glass, opaque, plagioclase, clinopyroxene and minor alteration patches. Plagioclase phenocrysts (An44 - An59) are up to 2.33 mm and often have sieve textured cores with overgrowth rims; both normal and oscillatory zoning are common; altered inclusions are common; occasionally grains have overgrowth rims over rounded cores or resorption embayments. Orthopyroxene phenocrysts are up to 2.2 mm and occasionally have clinopyroxene rims or opaque inclusions. Clinopyroxene phenocrysts are up to 0.75 mm and occasionally have opaque inclusions. Opaque phenocrysts up to 0.4 mm. An altered phase, olivine?, is present. A second altered phase, unidentifiable, now is opaque with a rim of very fine pyroxene.	94SJP85B	Lava			Whole-rock	57.92	1.3	17.14	6.73	0.13	3.43	6.62	4.28	1.24	0.27	100.14	55	DCP	7.43	6.73	LOI=0.95	DCP		20.7	454	524															24	175	6.2				2	2.2	19.4	165	37			21	34	71	18.3					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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