AVO Sample Information

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SAMPLE INFO : 93SJP28

Sample ID:	93SJP28
Station ID:	93SJP28
Latitude:	62.4321
Longitude:	-143.1051918
Datum:	NAD83
Date Sampled:	1993-00-00
Sample Type 1:	Lava
Sample Type 2:	Dome
Field Lithology:	Rhyolite

Text Description:
Blocky, rubbly outcrop from Dome A at Site 2. Fine grained, vesicular, holocrystalline, porphyritic with a matrix of equigranular feldspar, quartz?, opaque and zircon. Plagioclase phenocrysts (An24) are up to 1.5 mm and some have polysynthetic twinning, but untwinned feldspar also is present. Symplectic intergrowths of feldspar and quartz are up to 0.15 mm. There is an altered grain, amphibole?, consisting of an opaque aggregate with a small core. 91.7% matrix, 2.6% plagioclase, 5.7% 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
93SJP28	62.4321	-143.1051918	Preece, S. J.	1993-00-00		Skookum Creek		Nabesna B-5; T8N, R12E, S36	Blocky, rubbly outcrop from Dome A at Site 2. Fine grained, vesicular, holocrystalline, porphyritic with a matrix of equigranular feldspar, quartz?, opaque and zircon. Plagioclase phenocrysts (An24) are up to 1.5 mm and some have polysynthetic twinning, but untwinned feldspar also is present. Symplectic intergrowths of feldspar and quartz are up to 0.15 mm. There is an altered grain, amphibole?, consisting of an opaque aggregate with a small core. 91.7% matrix, 2.6% plagioclase, 5.7% vesicles.	93SJP28	Lava			Whole-rock	75.06	0.07	14.45	0.87	0.03	0.1	1.03	4.71	3.05	0.04	99.7	55	DCP	0.97	0.87	LOI=0.58	DCP		53	912	161	18.9	38		15	2.6	0.6	2.1		2.5		1.4		1.5	0.2	15	108	9				2.2	2.5	1.4	bdl	bdl			bdl	0	33	15.4					55	XRF: Rb, Zr, Nb, Th, U, Ga; DCP: Ba, La, Ce, Nd, Sm, Eu, Gd, Dy, Er, Yb, Lu, Sc; MX: Sr, Y, Zn;

SAMPLE LOCATION

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