AVO Sample Information

StationID	Latitude	Longitude	Geologist	Location Description	Text Description	Sample ID	Sample Type 1	Sample Type 2	Material	SiO2	TiO2	Al2O3	FeOT	CaO	Na2O	K2O	REF majors	METH majors	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	Zn	Ga	Ref trace1	METH trace1
CRH94	68.25194444	-139.7744444	Westgate, J. A.	Located on the right bank of the Old Crow River, about 65 km by air to the southeast of site CRH47. Twenty-six-m-high exposure comprised predominantly of alluvial silt, clayey silt, and sand that exhibit shallow channel structures, and, in places, contain peat, molluscs, and wood fragments. Near the base of the section, lacustrine or pond deposits of clayey silt to silty clay occur, which enclose pods of tephra up to 25 cm thick. Initially visited by J.V. Matthews Jr., Charles Schweger, and Richard Morlan during the 1980s as part of reconnaissance studies on Quaternary deposits exposed in the bluffs of the Old Crow River. Site designation made by C.R. Harington. Site revisited by John Westgate in 1985 as part of stratigraphic investigations. Coordinates provided as degrees/minutes/seconds in Westgate and others (2013) and converted to decimal degrees; datum not specified, assumed to be NAD83.	Occurs as pods of tephra, up to 25 cm thick, within lacustrine or pond deposits of clayey silt to silty clay near the base of the section. Likely separated into pods as a result of loading into the underlying sediments, which must have been saturated and of low bulk density relative to the tephra when the latter was deposited. Pumiceous glass with sparse amounts of bubble-wall shards. Abundant hornblende (dark greenish-brown in color), hypersthene (more abundant in this than in Surprise Creek tephra), and plagioclase; Fe-Ti oxides and oxyhornblende are present but not conspicuous.	UT622	Tephra Fall	Cumulate	Glass	75.8	0.28	13.95	1.24	1.66	4.24	2.75	55	EMP	1.24	Cl=0.24; H2O=6.16	EMP		57	938	375		48		19	3.1	0.92	2.81		1.93		1.09		1.18	0.17	9	144					4	2.07	1.95	39		55	INAA: Rb, Ba, Ce, Nd, Sm, Eu, Yb, Lu, Zr, Th, U, Sc, Zn; LA-ICP: Sr, Gd, Dy, Er, Y;
CRH94	68.25194444	-139.7744444	Westgate, J. A.	Located on the right bank of the Old Crow River, about 65 km by air to the southeast of site CRH47. Twenty-six-m-high exposure comprised predominantly of alluvial silt, clayey silt, and sand that exhibit shallow channel structures, and, in places, contain peat, molluscs, and wood fragments. Near the base of the section, lacustrine or pond deposits of clayey silt to silty clay occur, which enclose pods of tephra up to 25 cm thick. Initially visited by J.V. Matthews Jr., Charles Schweger, and Richard Morlan during the 1980s as part of reconnaissance studies on Quaternary deposits exposed in the bluffs of the Old Crow River. Site designation made by C.R. Harington. Site revisited by John Westgate in 1985 as part of stratigraphic investigations. Coordinates provided as degrees/minutes/seconds in Westgate and others (2013) and converted to decimal degrees; datum not specified, assumed to be NAD83.	Occurs as pods of tephra, up to 25 cm thick, within lacustrine or pond deposits of clayey silt to silty clay near the base of the section. Likely separated into pods as a result of loading into the underlying sediments, which must have been saturated and of low bulk density relative to the tephra when the latter was deposited. Pumiceous glass with sparse amounts of bubble-wall shards. Abundant hornblende (dark greenish-brown in color), hypersthene (more abundant in this than in Surprise Creek tephra), and plagioclase; Fe-Ti oxides and oxyhornblende are present but not conspicuous.	UT622	Tephra Fall	Cumulate	Glass											Cl=0.24; H2O=6.16	EMP	1.04	57	938	375	24	48	5.2	19	3.1	0.92	2.81	0.37	1.93	0.4	1.09	0.19	1.18	0.17	9	144	9.2	3.2	0.67	12	4	2.07			13	10621	ICPMS
CRH94	68.25194444	-139.7744444	Westgate, J. A.	Located on the right bank of the Old Crow River, about 65 km by air to the southeast of site CRH47. Twenty-six-m-high exposure comprised predominantly of alluvial silt, clayey silt, and sand that exhibit shallow channel structures, and, in places, contain peat, molluscs, and wood fragments. Near the base of the section, lacustrine or pond deposits of clayey silt to silty clay occur, which enclose pods of tephra up to 25 cm thick. Initially visited by J.V. Matthews Jr., Charles Schweger, and Richard Morlan during the 1980s as part of reconnaissance studies on Quaternary deposits exposed in the bluffs of the Old Crow River. Site designation made by C.R. Harington. Site revisited by John Westgate in 1985 as part of stratigraphic investigations. Coordinates provided as degrees/minutes/seconds in Westgate and others (2013) and converted to decimal degrees; datum not specified, assumed to be NAD83.	Occurs as pods of tephra, up to 25 cm thick, within lacustrine or pond deposits of clayey silt to silty clay near the base of the section. Likely separated into pods as a result of loading into the underlying sediments, which must have been saturated and of low bulk density relative to the tephra when the latter was deposited. Pumiceous glass with sparse amounts of bubble-wall shards. Abundant hornblende (dark greenish-brown in color), hypersthene (more abundant in this than in Surprise Creek tephra), and plagioclase; Fe-Ti oxides and oxyhornblende are present but not conspicuous.	UT622	Tephra Fall	Cumulate	Glass											Cl=0.24; H2O=6.16	EMP	1.34	61	1137	435.7	32.1	55	6.1	23	4.08	0.75	3.21	0.51	2.51	0.57	1.74	0.21	1.74	0.34	14.9	241	12.4	5.98	1.06		7.2	2.57				10601	LA-ICP