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SAMPLE INFO : Carson_Cold_Bay_Regional_Tephra_F
Sample ID:Carson_Cold_Bay_Regional_Tephra_F
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 two individual samples from two different locations (see individual samples for description): individual samples 96JF210C, 97EC13A (see Figure 14a in Carson 1998). One to two cm of thinly bedded fine (0.25-0.5 mm) ash, consistently light brown in color.

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.< 3600 ± 140 stratigraphy; 975; Organic material in pond deposits above sample 96JF10C (originally reported in Dochat 1997).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 two individual samples from two different locations (see individual samples for description): individual samples 96JF210C, 97EC13A (see Figure 14a in Carson 1998). One to two cm of thinly bedded fine (0.25-0.5 mm) ash, consistently light brown in color.Carson_Cold_Bay_Regional_Tephra_FTephra FallCumulateGlass 57.79 1.45 16.27 9.12 0.39 3.09 6.85 3.92 1.26 98.423476EMP9.12
Cold_Bay_Regional_Tephra55.2-162.7Carson, E. C.< 3600 ± 140 stratigraphy; 975; Organic material in pond deposits above sample 96JF10C (originally reported in Dochat 1997).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 two individual samples from two different locations (see individual samples for description): individual samples 96JF210C, 97EC13A (see Figure 14a in Carson 1998). One to two cm of thinly bedded fine (0.25-0.5 mm) ash, consistently light brown in color.Carson_Cold_Bay_Regional_Tephra_FTephra FallCumulateGlassStandard deviation not reported. Number of analyses used to calculate mean composition not reported. 57.79Standard deviation not reported. Number of analyses used to calculate mean composition not reported. 1.45Standard deviation not reported. Number of analyses used to calculate mean composition not reported. 16.27 9.12Standard deviation not reported. Number of analyses used to calculate mean composition not reported. 0.39Standard deviation not reported. Number of analyses used to calculate mean composition not reported. 3.09Standard deviation not reported. Number of analyses used to calculate mean composition not reported. 6.85Standard deviation not reported. Number of analyses used to calculate mean composition not reported. 3.92Standard deviation not reported. Number of analyses used to calculate mean composition not reported. 1.26 Standard deviation not reported. Number of analyses used to calculate mean composition not reported. 98.42975EMP9.12

SAMPLE LOCATION

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