AVO Sample Information

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SAMPLE INFO : 93SJP27

Sample ID:	93SJP27
Station ID:	93SJP27
Latitude:	62.43351542
Longitude:	-143.106303
Datum:	NAD83
Date Sampled:	1993-00-00
Sample Type 1:	Lava
Sample Type 2:	Dike
Field Lithology:	Andesite

Text Description:
Approximately 10’ thick vertical dike cutting up through silicic material Dome A at Site 2. Fine-grained, holocrystalline, porphyritic with a matrix of mesostasis, opaque, plagioclase and alteration. Plagioclase phenocrysts (An30 - An58) are up to 3.45 mm and some have complex zoning with prussian blue extinction, resorption embayments; both twinned and untwinned grains are present. Clinopyroxene phenocrysts are up to 2.0 mm. Orthopyroxene is up to 0.8 mm and some have opaque inclusions.

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
93SJP27	62.43351542	-143.106303	Preece, S. J.	1993-00-00		Skookum Creek		Nabesna B-5; T8N, R12E, S36	Approximately 10’ thick vertical dike cutting up through silicic material Dome A at Site 2. Fine-grained, holocrystalline, porphyritic with a matrix of mesostasis, opaque, plagioclase and alteration. Plagioclase phenocrysts (An30 - An58) are up to 3.45 mm and some have complex zoning with prussian blue extinction, resorption embayments; both twinned and untwinned grains are present. Clinopyroxene phenocrysts are up to 2.0 mm. Orthopyroxene is up to 0.8 mm and some have opaque inclusions.	93SJP27	Lava			Whole-rock	61.96	1	16.94	5.52	0.1	2.36	4.98	4.77	1.64	0.28	99.92	55	DCP	6.09	5.52	LOI=0.45	DCP		28	558	441															23	194	6.4				4.5	1.8	14.2	109	17			10	22	71	18.4					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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