AVO Sample Information

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SAMPLE INFO : 94SJP38

Sample ID:	94SJP38
Station ID:	94SJP38
Latitude:	62.427404
Longitude:	-143.1238023
Datum:	NAD83
Date Sampled:	1994-00-00
Sample Type 1:	Lava
Sample Type 2:	Flow
Field Lithology:	Andesite

Text Description:
Flow underlying 94SJP37 at Site 3. The flow is 30’ thick and above an extensive red baked zone on top of silicic vitrophyre. Flow is cut through by dike 94SJP39. Fine-grained, holocrystalline, intergranular, seriate porphyritic with a matrix of mesostasis, opaque, orthopyroxene, clinopyroxene, yellow alteration and calcite. Plagioclase phenocrysts (An35 - An57) are up to 1.85 mm and some have complex zoning and sieve textured cores or intermediate zones. Orthopyroxene phenocrysts are up to 1.0 mm and some have clinopyroxene rims, sieve textured with opaque inclusions or plagioclase inclusions. Clinopyroxene phenocrysts are up to 0.15 mm.

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
94SJP38	62.427404	-143.1238023	Preece, S. J.	1994-00-00		Skookum Creek		Nabesna B-5; T8N, R12E, S35	Flow underlying 94SJP37 at Site 3. The flow is 30’ thick and above an extensive red baked zone on top of silicic vitrophyre. Flow is cut through by dike 94SJP39. Fine-grained, holocrystalline, intergranular, seriate porphyritic with a matrix of mesostasis, opaque, orthopyroxene, clinopyroxene, yellow alteration and calcite. Plagioclase phenocrysts (An35 - An57) are up to 1.85 mm and some have complex zoning and sieve textured cores or intermediate zones. Orthopyroxene phenocrysts are up to 1.0 mm and some have clinopyroxene rims, sieve textured with opaque inclusions or plagioclase inclusions. Clinopyroxene phenocrysts are up to 0.15 mm.	94SJP38	Lava			Whole-rock	58.59	0.86	17.11	5.76	0.1	4.78	6.94	3.58	1.27	0.21	99.23	55	DCP	6.31	5.76	LOI=0.8	DCP		25.4	498	546															15	127	4.5				3.2	1.7	18.5	148	112			66	44	63	17.5					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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