AVO Sample Information

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SAMPLE INFO : 94SJP50B

Sample ID:	94SJP50B
Station ID:	94SJP50B
Latitude:	62.41629204
Longitude:	-143.1010239
Datum:	NAD83
Date Sampled:	1994-00-00
Sample Type 1:	Lava
Sample Type 2:	Dike
Field Lithology:	Andesite

Text Description:
Dike cutting through 94SJP50A. The dike is 5’ thick, trending N90E, and is columnar jointed. Fine-grained, vesicular, holocrystalline, weakly pilotaxitic, porphyritic with a matrix of mesostasis, opaque, plagioclase and red alteration. Plagioclase phenocrysts (An42 - An58) have two populations 3.5-0.15 mm with some sieve textured cores or intermediate zones, and complex zoning; and 0.15-0.05 mm needles. Orthopyroxene phenocrysts are 1.0-0.1 mm,. Clinopyroxene phenocrysts are 0.7-0.1 mm and twinning is common.

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
94SJP50B	62.41629204	-143.1010239	Preece, S. J.	1994-00-00		Skookum Creek		Nabesna B-5; T7N, R12E, S1	Dike cutting through 94SJP50A. The dike is 5’ thick, trending N90E, and is columnar jointed. Fine-grained, vesicular, holocrystalline, weakly pilotaxitic, porphyritic with a matrix of mesostasis, opaque, plagioclase and red alteration. Plagioclase phenocrysts (An42 - An58) have two populations 3.5-0.15 mm with some sieve textured cores or intermediate zones, and complex zoning; and 0.15-0.05 mm needles. Orthopyroxene phenocrysts are 1.0-0.1 mm,. Clinopyroxene phenocrysts are 0.7-0.1 mm and twinning is common.	94SJP50B	Lava			Whole-rock	57.9	1.22	17.19	7.01	0.17	2.78	6.73	4.25	1.13	0.19	100.05	55	DCP	7.74	7.01	LOI=1.43	DCP		21.7	477	513															26	159	4.8				2.1	1.2	21	163	17			18	44	74	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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