AVO Sample Information

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SAMPLE INFO : 94SJP2

Sample ID:	94SJP2
Station ID:	94SJP2
Latitude:	62.30155964
Longitude:	-143.2554608
Datum:	NAD83
Date Sampled:	1994-00-00
Sample Type 1:	Lava
Sample Type 2:	Flow
Field Lithology:	Basaltic Andesite

Text Description:
Lowest-most outcrop on west side of the creek. The flow is 15-20' thick and dips N60E, 45W at Site 15. The flow is overlain by 94SJP3 and underlain by yellow lahar. Fine grained, holocrystalline, porphyritic with a matrix of plagioclase (An36-An40), clinopyroxene, opaque, and alteration. Clay balls are present. Plagioclase phenocrysts (An37-An61) are up to 1.5 mm and sometimes occur in glomeroporphyritic clots; most are not zoned; the larger grains have normal zoning or rarely oscillatory zoning. Clinopyroxene phenocrysts are up to 0.5 mm. An altered phase, probably olivine, is also present. Mode: 75.5% matrix, 8.2% plagioclase, 0.2% clinopyroxene, 16.1% alteration.

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
94SJP2	62.30155964	-143.2554608	Preece, S. J.	1994-00-00		Skookum Creek		Nabesna B-5, T6N, R12E, S18	Lowest-most outcrop on west side of the creek. The flow is 15-20' thick and dips N60E, 45W at Site 15. The flow is overlain by 94SJP3 and underlain by yellow lahar. Fine grained, holocrystalline, porphyritic with a matrix of plagioclase (An36-An40), clinopyroxene, opaque, and alteration. Clay balls are present. Plagioclase phenocrysts (An37-An61) are up to 1.5 mm and sometimes occur in glomeroporphyritic clots; most are not zoned; the larger grains have normal zoning or rarely oscillatory zoning. Clinopyroxene phenocrysts are up to 0.5 mm. An altered phase, probably olivine, is also present. Mode: 75.5% matrix, 8.2% plagioclase, 0.2% clinopyroxene, 16.1% alteration.	94SJP2	Lava			Whole-rock	52.34	1.39	17.13	8.57	0.13	6.04	9.21	3.7	0.44	0.24	99.4	55	DCP	9.38	8.57	LOI=0.79	DCP		7.1	219	329	9.1	24.4		14.1	3.8	1.3	4.8		4.7		2.9		2.8	0.4	32	131	2.6				2.7	1.6	35.4	216	162			51	54	64	17.8					55	XRF: Rb, Zr, Nb, Th, U, Ni, Ga; DCP: Ba, La, Ce, Nd, Sm, Eu, Gd, Dy, Er, Yb, Lu, Sc, V; MX: Sr, Y, Cr, Cu, Zn;

SAMPLE LOCATION

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