AVO Sample Information

StationID	Latitude	Longitude	Geologist	Age Info	Location Description	Text Description	Sample ID	Sample Type 1	Sample Type 2	Material	SiO2	TiO2	Al2O3	FeOT	MnO	MgO	CaO	Na2O	K2O	Total-majors	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	Hf	Ta	Th	U	Sc	Co	Zn	Ref trace1	METH trace1
Eva_II	64.8516	-148.015	Preece, S. J.	124000 ± 10000 known unit; 10271; Age is approximate. Revised glass fission-track age with re-calibration; four Old Crow Tephra sample glass fission-track ages (UT1434, UT613, UT501, UT613).	Exposure on the west side of EVA Creek mining cut, Ester, Alaska; Gold Hill Loess overlies the Dawson Cut Formation and is unconformably covered by the interglacial Eva Forest Bed. Location coordinates from Preece et al. (2011); datum not specified, assumed to be NAD83.	Occurs as pods of tephra within the Upper Gold Hill Loess. Pods as thick as 18 cm, about 2.5 m above the Sheep Creek tephra and 1.5 m below Eva Forest Bed at this location. Sharp upper and lower contacts, 10YR7/1.	UT828	Tephra Fall	Cumulate	Glass	75.4	0.27	13.23	1.66	Reported analytical value of zero. Reported standard deviation value of zero. 0	Reported analytical value of zero. Reported standard deviation value of zero. 0	1.44	4.14	3.61	94.96	56	EMP	1.66	Cl=0.27	EMP	4.22	101	861	153	23.1	55		24.5	5.41	0.85		0.85					3.68	0.66			6.1	0.83	10.41	3.99	6.16	1.77	52	56	INAA
Eva_II	64.8516	-148.015	Preece, S. J.	124000 ± 10000 known unit; 10271; Age is approximate. Revised glass fission-track age with re-calibration; four Old Crow Tephra sample glass fission-track ages (UT1434, UT613, UT501, UT613).	Exposure on the west side of EVA Creek mining cut, Ester, Alaska; Gold Hill Loess overlies the Dawson Cut Formation and is unconformably covered by the interglacial Eva Forest Bed. Location coordinates from Preece et al. (2011); datum not specified, assumed to be NAD83.	Occurs as pods of tephra within the Upper Gold Hill Loess. Pods as thick as 18 cm, about 2.5 m above the Sheep Creek tephra and 1.5 m below Eva Forest Bed at this location. Sharp upper and lower contacts, 10YR7/1.	UT828	Tephra Fall	Cumulate	Glass	75.18	0.26	13.13	1.76	0.06	0.26	1.59	3.82	3.66		10631	EMP	1.76	Cl=0.28; H2O=3.53	EMP		101	860	153	23.1	55		25	5.41	0.85		0.85					3.68	0.66			6.1	0.83	10.41	3.99	6.16		52	2166	INAA
Eva_II	64.8516	-148.015	Preece, S. J.	124000 ± 10000 known unit; 10271; Age is approximate. Revised glass fission-track age with re-calibration; four Old Crow Tephra sample glass fission-track ages (UT1434, UT613, UT501, UT613).	Exposure on the west side of EVA Creek mining cut, Ester, Alaska; Gold Hill Loess overlies the Dawson Cut Formation and is unconformably covered by the interglacial Eva Forest Bed. Location coordinates from Preece et al. (2011); datum not specified, assumed to be NAD83.	Occurs as pods of tephra within the Upper Gold Hill Loess. Pods as thick as 18 cm, about 2.5 m above the Sheep Creek tephra and 1.5 m below Eva Forest Bed at this location. Sharp upper and lower contacts, 10YR7/1.	UT828	Tephra Fall	Cumulate	Glass	75.4	0.27	13.23	1.66			1.44	4.14	3.61		2166	EMP	1.66	Cl=0.27	EMP	4.48	104	941	141	25.4	54.7	6.09	24.7	5.84	0.9	4.85	0.92	5.62	1.3	3.61	0.58	3.68	0.58	35.8	264	7.28		10.26	4.48	5.89			10271	ICPMS

Contact AVO Privacy Accessibility Information Quality FOIA

URL: avo.alaska.edu/samples/sample_info.php
Page modified: August 1, 2017 15:29
Contact Information: AVO Web Team

@alaska_avo

alaska.avo

Receive volcano updates by email: USGS VNS

This website is supported by the U.S. Geological Survey under Cooperative Agreement Grant G22AC00137

Mention of trade names or commercial products does not constitute their endorsement by the U.S. Geological Survey.