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SAMPLE INFO : Carson_Cold_Bay_Regional_Tephra _B
Sample ID:Carson_Cold_Bay_Regional_Tephra _B
Station ID:Cold_Bay_Regional_Tephra
Latitude:55.2
Longitude:-162.7
Datum:NAD83
Sample Type 1:Tephra Fall
Text Description:
Average calculated from analyses of seven individual samples from seven different locations (see individual samples for description): 96TDS3A, 96JF9A, 96TDS15Q, 97EC18N, 96TDS30A, 96TDS33A, 97EC15E (see Figure 14a in Carson 1998). Scattered 1-2 cm pumice lapilli, gray to light brown, dispersed in a 10-15 cm thick sediment horizon. Tephra collected from beneath the Funk/Fisher ash or directly above the late Wisconsin diamicton. Composed of easily recognizable 1-2 cm lapilli fragments evenly dispersed within a layer of non-volcanic (typically eolian) interstitial sediment.

References:
Holocene tephrochronology of the Cold Bay area, Southwest Alaska Peninsula
Holocene tephrochronology of the Cold Bay area, southwest Alaska Peninsula

GEOCHEM DATA
StationIDLatitudeLongitudeGeologistDateVisitedAge InfoVolcanoEruptionLocation DescriptionText DescriptionSample IDSample Type 1Sample Type 2Geologic 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
Cold_Bay_Regional_Tephra55.2-162.7Carson, E. C.> 9130 ± 140 stratigraphy; 975; Radiocarbon date of peat directly beneath the Funk/Fisher ash. This tephra is located stratigraphically below the Funk/Fisher ash and is therefore older. Age is also constrained by deglaciation in the area. Seven major tephra beds identified and correlated in the Cold Bay area, Alaska Peninsula, Alaska (see Carson 1998). Geochemical data of samples reported here are averages calculated from analyses of multiple tephra correlated across different stratigraphic locations in the area; see sample descriptions for individual samples that were used to calculate compositional averages of correlated tephra deposits. Deposition of these beds took place between 10,200 +/- 75 and 3600 +/- 140 radiocarbon years BP. Generic location selected in the Cold Bay area.Average calculated from analyses of seven individual samples from seven different locations (see individual samples for description): 96TDS3A, 96JF9A, 96TDS15Q, 97EC18N, 96TDS30A, 96TDS33A, 97EC15E (see Figure 14a in Carson 1998). Scattered 1-2 cm pumice lapilli, gray to light brown, dispersed in a 10-15 cm thick sediment horizon. Tephra collected from beneath the Funk/Fisher ash or directly above the late Wisconsin diamicton. Composed of easily recognizable 1-2 cm lapilli fragments evenly dispersed within a layer of non-volcanic (typically eolian) interstitial sediment.Carson_Cold_Bay_Regional_Tephra _BTephra FallCumulateGlass 77.22 0.11 13.58 1.69 0.13 0.15 1.41 4.11 1.55 Reported standard deviation of zero. 1003476EMP1.69
Cold_Bay_Regional_Tephra55.2-162.7Carson, E. C.> 9130 ± 140 stratigraphy; 975; Radiocarbon date of peat directly beneath the Funk/Fisher ash. This tephra is located stratigraphically below the Funk/Fisher ash and is therefore older. Age is also constrained by deglaciation in the area. Seven major tephra beds identified and correlated in the Cold Bay area, Alaska Peninsula, Alaska (see Carson 1998). Geochemical data of samples reported here are averages calculated from analyses of multiple tephra correlated across different stratigraphic locations in the area; see sample descriptions for individual samples that were used to calculate compositional averages of correlated tephra deposits. Deposition of these beds took place between 10,200 +/- 75 and 3600 +/- 140 radiocarbon years BP. Generic location selected in the Cold Bay area.Average calculated from analyses of seven individual samples from seven different locations (see individual samples for description): 96TDS3A, 96JF9A, 96TDS15Q, 97EC18N, 96TDS30A, 96TDS33A, 97EC15E (see Figure 14a in Carson 1998). Scattered 1-2 cm pumice lapilli, gray to light brown, dispersed in a 10-15 cm thick sediment horizon. Tephra collected from beneath the Funk/Fisher ash or directly above the late Wisconsin diamicton. Composed of easily recognizable 1-2 cm lapilli fragments evenly dispersed within a layer of non-volcanic (typically eolian) interstitial sediment.Carson_Cold_Bay_Regional_Tephra _BTephra FallCumulateGlassStandard deviation not reported. Number of analyses used to calculate mean composition not reported. 77.22Standard deviation not reported. Number of analyses used to calculate mean composition not reported. 0.11Standard deviation not reported. Number of analyses used to calculate mean composition not reported. 13.58 1.69Standard deviation not reported. Number of analyses used to calculate mean composition not reported. 0.13Standard deviation not reported. Number of analyses used to calculate mean composition not reported. 0.15Standard deviation not reported. Number of analyses used to calculate mean composition not reported. 1.41Standard deviation not reported. Number of analyses used to calculate mean composition not reported. 4.11Standard deviation not reported. Number of analyses used to calculate mean composition not reported. 1.55 Standard deviation not reported. Number of analyses used to calculate mean composition not reported. 100975EMP1.69

SAMPLE LOCATION

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