AVO Logo
Site Map | FAQ |
Alaska Volcano Observatory
 
You are here: Home > Samples > UT743-P2

SAMPLE INFO : UT743-P2
Sample ID:UT743-P2
Station ID:Halfway_House
Latitude:64.735
Longitude:-148.4594
Datum:NAD83
Sample Type 1:Tephra Fall
 Text Description:
3 m higher than the Old Crow Tephra at this locality; 1-mm to 1-cm-thick, discontinuous tephra that occurs in a dark silt that has been deformed by solifluction. Occurs at the top of a subhorizontal, layered and soliflucted paleosol interbedded with sand layers. 5YR5/2.

References:
Tephrochronology of late Cenozoic loess at Fairbanks, central Alaska

GEOCHEM DATA
StationIDLatitudeLongitudeGeologistDateVisitedAge InfoVolcanoEruptionLocation DescriptionText DescriptionSample IDSample Type 1Sample Type 2Final UnitMaterialCoeffSiO2TiO2Al2O3FeOTMnOMgOCaONa2OK2OP2O5Total-majorsREF majorsMETH majorsFe2O3/Fe203T origFeO/FeOT origVolatiles csvMETH volatilesCsRbBaSrLaCePrNdSmEuGdTbDyHoErTmYbLuYZrNbHfTaPbThUScVCrFeCoNiCuZnGaMoAsNaKRef trace1METH trace1RbBaSrLaCeNdSmEuGdDyErYbLuYZrNbPbThUScTiVCrNiCuZnGaRef trace2METH trace2Light csvHalogen csvother major csvother lile csvother ree csvother hfse csvother hpe csvother tm csvother misc csv
Halfway_House64.735-148.4594Preece, S. J. Halfway House site: a 12-m-thick section of the Gold Hill Loess located on top of a rounded bedrock hill along the north side of the Parks Highway, ~50 km west of Fairbanks, Alaska. The exposure was created during construction of the George Parks Highway in the 1960s and is mostly comprised of the Goldstream Formation. Location coordinates from Preece and others (2011); coordinates vary slightly from those reported in Jensen and others (2011). Datum not specified, assumed to be NAD83.3 m higher than the Old Crow Tephra at this locality; 1-mm to 1-cm-thick, discontinuous tephra that occurs in a dark silt that has been deformed by solifluction. Occurs at the top of a subhorizontal, layered and soliflucted paleosol interbedded with sand layers. 5YR5/2.UT743-P2Tephra FallCumulateGlass 75.25 0.3 13.03 2.65Reported analytical value of zero. Reported standard deviation value of zero. 0Reported analytical value of zero. Reported standard deviation value of zero. 0 1.78 3.58 3.18 93.5256EMP2.65Cl=0.22EMP
Halfway_House64.735-148.4594Preece, S. J. Halfway House site: a 12-m-thick section of the Gold Hill Loess located on top of a rounded bedrock hill along the north side of the Parks Highway, ~50 km west of Fairbanks, Alaska. The exposure was created during construction of the George Parks Highway in the 1960s and is mostly comprised of the Goldstream Formation. Location coordinates from Preece and others (2011); coordinates vary slightly from those reported in Jensen and others (2011). Datum not specified, assumed to be NAD83.3 m higher than the Old Crow Tephra at this locality; 1-mm to 1-cm-thick, discontinuous tephra that occurs in a dark silt that has been deformed by solifluction. Occurs at the top of a subhorizontal, layered and soliflucted paleosol interbedded with sand layers. 5YR5/2.UT743-P2Tephra FallCumulateGlass 75.25 0.3 13.03 2.65 1.78 3.58 3.18 996EMP2.65Cl=0.22; H2O=6.48EMP

SAMPLE LOCATION

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

twitter @alaska_avo
facebook alaska.avo
email 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.