AVO Sample Information

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SAMPLE INFO : 74AMm90

Sample ID:	74AMm90
Station ID:	74AMm90
Latitude:	62.0338
Longitude:	-144.64378
Datum:	NAD83
Date Sampled:	1974-00-00
Sample Type 1:	Tephra Fall

Text Description:
Ash Flow and Pumice Deposits from Mount Wrangell or Mount Drum. Semi-indurated rocks are light gray and consist of unsorted blocks, pumice, and ash of hornblende dacite generally overlying finer grained and stratified airfall beds of same composition. Upper 20 m of deposit (sec. 8, 16, 17, T. 3 N., R. 5 E.) is moderately welded, forming bold light-gray cliffs with weakly developed columnar joints.

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
74AMm90	62.0338	-144.64378	Miller, T. P.	1974-00-00		Drum		Wrangell Lava, Mount Drum, Alaska	Ash Flow and Pumice Deposits from Mount Wrangell or Mount Drum. Semi-indurated rocks are light gray and consist of unsorted blocks, pumice, and ash of hornblende dacite generally overlying finer grained and stratified airfall beds of same composition. Upper 20 m of deposit (sec. 8, 16, 17, T. 3 N., R. 5 E.) is moderately welded, forming bold light-gray cliffs with weakly developed columnar joints.	74AMm90	Tephra Fall	Cumulate		Whole-rock	64.53	0.46	17.3	3.84	0.07	1.92	4.81	4.49	1.72	0.23	100	55	DCP	4.24	3.84	LOI=0.66	DCP			541	633															11	96							9.5	90	6			9	19	57						55	DCP: Ba, Sc, V; MX: Sr, Y, Cr, Cu, Zn; XRF: Zr, Ni;

SAMPLE LOCATION

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