AVO Sample Information

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SAMPLE INFO : 81ARj 13b

Sample ID:	81ARj 13b
Station ID:	81ARj 13
Latitude:	57.724
Longitude:	-156.37
Datum:	NAD83
Date Sampled:	1981-01-01
Sample Type 1:	Lava
Field Lithology:	Dacite

Text Description:
inclusion from sample 81ARj 13. Porphyritic hornblende-biotite dacite. Vesicular, flow-foliated glassy groundmass contains rounded phenocrysts of plagioclase and quartz. Dominant mafic is dark-green hornblende, abundant biotite after hornblende, and no orthopyroxene as compared to sample 81ARj 13. Plagioclase is albite twinned and has rare Carlsbad twins.

References:

Map and tables showing geochronology and whole-rock geochemistry of selected samples, Ugashik and part of Karluk quadrangles, Alaska

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
81ARj 13	57.724	-156.37	Riehle, J. R.	1981-01-01		Ugashik caldera		Ugashik C-2, Ugashik Caldera, dome	inclusion from sample 81ARj 13. Porphyritic hornblende-biotite dacite. Vesicular, flow-foliated glassy groundmass contains rounded phenocrysts of plagioclase and quartz. Dominant mafic is dark-green hornblende, abundant biotite after hornblende, and no orthopyroxene as compared to sample 81ARj 13. Plagioclase is albite twinned and has rare Carlsbad twins.	81ARj 13b	Lava			Whole-rock	51	0.87	19.3	8.58	0.16	5.79	10.6	2.48	0.69	0.13	99.47	4092	XRF	2.13	6.6

SAMPLE LOCATION

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