AVO Sample Information

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SAMPLE INFO : 84-ARh-87

Sample ID:	84-ARh-87
Station ID:	84-ARh-87
Latitude:	62.1737
Longitude:	-144.35388
Datum:	NAD83
Date Sampled:	1984-00-00
Sample Type 1:	Lava

Text Description:
Mount Sanford lava flows (Pleistocene). Chiefly andesite flows from central shield of Sanford, shields (?) related to three subsidiary centers, and postulated Sanford caldera. Unit also includes domes, pyroclastic deposits, and a variety of shallow intrusive rocks that are exposed on south and southeast faces of Mount Sanford. Local accumulations of cinders, scoria, and bombs (stippled areas) indicate location of small parasitic vents. Lenses of light colored silicic air-fall tuff are also present.

References:

Geologic map of the Gulkana A-1 Quadrangle, south-central 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
84-ARh-87	62.1737	-144.35388	Richter, D. H.	1984-00-00		Sanford		Mount Sanford rocks within Gulkana A-1 quadrangle. Latitude and longitude derived from paper map.	Mount Sanford lava flows (Pleistocene). Chiefly andesite flows from central shield of Sanford, shields (?) related to three subsidiary centers, and postulated Sanford caldera. Unit also includes domes, pyroclastic deposits, and a variety of shallow intrusive rocks that are exposed on south and southeast faces of Mount Sanford. Local accumulations of cinders, scoria, and bombs (stippled areas) indicate location of small parasitic vents. Lenses of light colored silicic air-fall tuff are also present.	84-ARh-87	Lava			Whole-rock	56.7	1.67	16.4	7.92	0.12	3.99	6.93	3.69	1.64	0.47	99.89	2262	NN	4.63	3.7	H2OP=0.32; H2OM=0.13; CO2=0.01	RAPIDA

SAMPLE LOCATION

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