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SAMPLE INFO : 72-ARh-315

Sample ID:	72-ARh-315
Station ID:	72-ARh-315
Latitude:	62.0776
Longitude:	-143.47318
Datum:	NAD83
Date Sampled:	1972-00-00
Sample Type 1:	Lava
Field Lithology:	Rhyolite

Text Description:
Rhyolite cinder cone and nuee ardente deposits. Cinder cone consists chiefly of unconsolidated rubble of dense glassy blocks, pumiceous scoria, and lapilli. Nuee ardente deposits composed largely of bread-crust blocks in a matrix of unconsolidated ash and lapilli. Rocks are buff to light gray and contain rare small hypersthene and plagioclase phenocrysts in a plagioclase-rich hyalopilitic or glass matrix.

References:

Geologic map of the Nabesna A-5 quadrangle, 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
72-ARh-315	62.0776	-143.47318	Richter, D. H.	1972-00-00		Jarvis		Nabesna A-5 quadrangle; Wrangell Lava; Wrangell Volcanic Field. lat long points derived from paper map. Sample from Jarvis.	Rhyolite cinder cone and nuee ardente deposits. Cinder cone consists chiefly of unconsolidated rubble of dense glassy blocks, pumiceous scoria, and lapilli. Nuee ardente deposits composed largely of bread-crust blocks in a matrix of unconsolidated ash and lapilli. Rocks are buff to light gray and contain rare small hypersthene and plagioclase phenocrysts in a plagioclase-rich hyalopilitic or glass matrix.	72-ARh-315	Lava			Whole-rock	71.9	0.24	14.9	1.6	0.06	0.43	1.5	4.5	2.8	0.08	99.49	4537	RAPIDA	0.6	1.1	H2O=1.88	RAPIDA

SAMPLE LOCATION

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