AVO Sample Information

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SAMPLE INFO : 73ARh22

Sample ID:	73ARh22
Station ID:	73ARh22
Latitude:	62.1666
Longitude:	-144.55638
Datum:	NAD83
Date Sampled:	1973-00-00
Sample Type 1:	Lava
Field Lithology:	Dacite

Text Description:
Early Dacite Domes and Associated Flows. Three hornblende dacite domes (1, 2, 3) on east flank of Mount Drum were apparently erupted early in dome-building stage of second cycle of volcanic activity and may represent a distinct phase of second cycle associated with cone-building two-pyroxene andesite and dacite flows (Qzaf). All domes have been dissected by erosion, and dome 1, an extensive dome-flow complex with a surface area greater than 10 sq km, is overlain by widespread deposits of glacial drift (Qog).

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
73ARh22	62.1666	-144.55638	Richter, D. H.	1973-00-00		Drum		Wrangell Lava, Mount Drum, Alaska	Early Dacite Domes and Associated Flows. Three hornblende dacite domes (1, 2, 3) on east flank of Mount Drum were apparently erupted early in dome-building stage of second cycle of volcanic activity and may represent a distinct phase of second cycle associated with cone-building two-pyroxene andesite and dacite flows (Qzaf). All domes have been dissected by erosion, and dome 1, an extensive dome-flow complex with a surface area greater than 10 sq km, is overlain by widespread deposits of glacial drift (Qog).	73ARh22	Lava			Whole-rock	63.75	0.5	16.99	3.99	0.08	2.68	5.47	3.98	2.02	0.18	100.17	55	DCP	4.42	3.99	LOI=0.34	DCP			736	755															10	133							11.3	93	42			33	34	61						55	DCP: Ba, Sc, V; MX: Sr, Y, Cr, Cu, Zn; XRF: Zr, Ni;

SAMPLE LOCATION

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