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SAMPLE INFO : 94SJP85A

Sample ID:	94SJP85A
Station ID:	94SJP85A
Latitude:	62.38323413
Longitude:	-143.1768537
Datum:	NAD83
Date Sampled:	1994-00-00
Sample Type 1:	Lava
Sample Type 2:	Dike
Field Lithology:	Basaltic Andesite

Text Description:
Wall-like dike, 3-5' wide, with polygonal jointing, and trending N40E. The dike bifurcates into two about 2' thick arms and cuts through silicic material (94SJP85C). Fine grained, vesicular, hypocrystalline, seriate to glomeroporphyritic with a matrix of mesostasis, opaque, plagioclase, and small pools of brown glass. Plagioclase phenocrysts (An39-An57) are up to 4.62 mm, often have sieve textured zones, sometimes have altered inclusions, and occasionally have overgrowth rims or oscillatory zoning. Orthopyroxene phenocrysts are up to 2.87 mm. Clinopyroxene phenocrysts are up to 1.87 mm and some have plagioclase inclusions. A completely altered phase, olivine? is present.

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
94SJP85A	62.38323413	-143.1768537	Preece, S. J.	1994-00-00		Skookum Creek		Nabesna B-5, T7N, R12E, S15	Wall-like dike, 3-5' wide, with polygonal jointing, and trending N40E. The dike bifurcates into two about 2' thick arms and cuts through silicic material (94SJP85C). Fine grained, vesicular, hypocrystalline, seriate to glomeroporphyritic with a matrix of mesostasis, opaque, plagioclase, and small pools of brown glass. Plagioclase phenocrysts (An39-An57) are up to 4.62 mm, often have sieve textured zones, sometimes have altered inclusions, and occasionally have overgrowth rims or oscillatory zoning. Orthopyroxene phenocrysts are up to 2.87 mm. Clinopyroxene phenocrysts are up to 1.87 mm and some have plagioclase inclusions. A completely altered phase, olivine? is present.	94SJP85A	Lava			Whole-rock	55.23	0.76	17.78	6.03	0.1	5.41	7.4	3.38	1.06	0.18	99.55	55	DCP	6.62	6.03	LOI=2.65	DCP		16.8	385	564															15	104	3.2				2.9	1.7	16.1	120	81			113	47	63	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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