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SAMPLE INFO : Jensen_Palisades-5_average

Sample ID:	Jensen_Palisades-5_average
Station ID:	Jensen_Palisades_East
Latitude:	65.1
Longitude:	-153.19997
Datum:	NAD83
Sample Type 1:	Tephra Fall
Field Lithology:	Rhyolite

Text Description:
The composition reported here is the average of analyses of two samples: UA2084 and UA2164. Two samples collected ~75 cm above river level at Site F, in the river level peat complex. Samples UA 2084 and 2164 contain glass geochemical populations of several of the lowest tephra beds, but none of these lowest beds contain shards of P5. Glass morphology is almost entirely tricuspateand bubble-walled shards with some thick-walled pumice.

References:

The Palisades is a key reference site for the middle Pleistocene of eastern Beringia: new evidence from paleomagnetics and regional tephrostratigraphy

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	Coeff	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
Jensen_Palisades_East	65.1	-153.19997	Jensen, B. J. L.					The Palisades are on the south bank of the Yukon River in Nowitna National Wildlife Refuge, ~70 km downstream of Tanana village. Palisades East forms a heavily gullied, cliff-like exposure that is generally ~40-45 m in height, but ranges from ~25 m high at Site E to ~55-60 m high at Site D. It is difficult to access safely, with many near-vertical exposures and overhanging blocks of frozen sediment that frequently break free into the Yukon River. Location imprecisely georeferenced from Figure 1 in Jensen et al. (2013). Multiple sections were mapped and sampled across Palisades East: Site B1, B2, IB4, F, D1, and D2. See Jensen et al. (2013).	The composition reported here is the average of analyses of two samples: UA2084 and UA2164. Two samples collected ~75 cm above river level at Site F, in the river level peat complex. Samples UA 2084 and 2164 contain glass geochemical populations of several of the lowest tephra beds, but none of these lowest beds contain shards of P5. Glass morphology is almost entirely tricuspateand bubble-walled shards with some thick-walled pumice.	Jensen_Palisades-5_average	Tephra Fall	Cumulate		Glass		74.48	0.39	13.6	2.03	0.08	0.35	1.47	4.69	2.76			9361	EMP		2.03	Cl=0.16; H2O=5.8	EMP

SAMPLE LOCATION

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