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SAMPLE INFO : 94SJP122A

Sample ID:	94SJP122A
Station ID:	94SJP122A
Latitude:	62.24682401
Longitude:	-143.4362967
Datum:	NAD83
Date Sampled:	1994-00-00
Sample Type 1:	Lava
Sample Type 2:	Dome
Field Lithology:	Rhyolite

Text Description:
Eastern-most sample collected from a rubbly dome outcrop of platy and blocky pieces at Site 15. Fine grained, vesicular, holocrystalline, seriate porphyritic with a matrix of cryptocrystalline material, opaque, orthopyroxene, plagioclase and minor alteration. Plagioclase phenocrysts (An38 - An47) are up to 3.0 mm and occasionally have rounded edges, oscillatory or normal zoning, and/or resorption embayments. Orthopyroxene phenocrysts are up to 0.95 mm. Opaque phenocrysts are up to 0.5 mm. There is a dehydrated phase that consists of fine grained opaque. 70.1% matrix, 19.4% plagioclase, 1.2% orthopyroxene, 0.5% opaque, 0.1% altered phase, 8.7% vesicles.

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
94SJP122A	62.24682401	-143.4362967	Preece, S. J.	1994-00-00		Skookum Creek		Nabesna A-5; T5N, R11E, S6	Eastern-most sample collected from a rubbly dome outcrop of platy and blocky pieces at Site 15. Fine grained, vesicular, holocrystalline, seriate porphyritic with a matrix of cryptocrystalline material, opaque, orthopyroxene, plagioclase and minor alteration. Plagioclase phenocrysts (An38 - An47) are up to 3.0 mm and occasionally have rounded edges, oscillatory or normal zoning, and/or resorption embayments. Orthopyroxene phenocrysts are up to 0.95 mm. Opaque phenocrysts are up to 0.5 mm. There is a dehydrated phase that consists of fine grained opaque. 70.1% matrix, 19.4% plagioclase, 1.2% orthopyroxene, 0.5% opaque, 0.1% altered phase, 8.7% vesicles.	94SJP122A	Lava			Whole-rock	70.15	0.33	16.06	2.61	0.1	0.87	2.51	5.22	1.96	0.12	99.57	55	DCP	2.88	2.61	LOI=0.08	DCP		35	729	368															17	189	8.1				4.4	0.7	4.1	18	1			1	8	57	15.7					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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