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SAMPLE INFO : Carson_Cold_Bay_Regional_Tephra_D(rhyo)
Sample ID:Carson_Cold_Bay_Regional_Tephra_D(rhyo)
Station ID:Cold_Bay_Regional_Tephra
Latitude:55.2
Longitude:-162.69998
Datum:NAD83
Sample Type 1:Tephra Fall
 Text Description:
Average calculated from analyses of four individual samples from four different locations (see individual samples for description): individual samples 96JF8G, 96JF8H, 97EC18E1, 97EC18E2 (see Figure 14a in Carson 1998). Four to six cm of reddish brown to light reddish brown fine (0.5-1 mm pumiceous ash at the base, grading to coarse (1-3 mm) scoria at top. Varies from thinly bedded to massive.

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 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
Cold_Bay_Regional_Tephra55.2-162.69998Carson, E. C.< 6070 ± 340 14C; 975; Underlying organic materialSeven 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 four individual samples from four different locations (see individual samples for description): individual samples 96JF8G, 96JF8H, 97EC18E1, 97EC18E2 (see Figure 14a in Carson 1998). Four to six cm of reddish brown to light reddish brown fine (0.5-1 mm pumiceous ash at the base, grading to coarse (1-3 mm) scoria at top. Varies from thinly bedded to massive.Carson_Cold_Bay_Regional_Tephra_D(rhyo)Tephra FallCumulateGlass 69.44 0.57 15.37 4.36 0.21 0.63 2.37 4.66 2.47 98.953476EMP4.36
Cold_Bay_Regional_Tephra55.2-162.69998Carson, E. C.< 6070 ± 340 14C; 975; Underlying organic materialSeven 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 four individual samples from four different locations (see individual samples for description): individual samples 96JF8G, 96JF8H, 97EC18E1, 97EC18E2 (see Figure 14a in Carson 1998). Four to six cm of reddish brown to light reddish brown fine (0.5-1 mm pumiceous ash at the base, grading to coarse (1-3 mm) scoria at top. Varies from thinly bedded to massive.Carson_Cold_Bay_Regional_Tephra_D(rhyo)Tephra FallCumulateGlassStandard deviation not reported. Number of analyses used to calculate mean composition not reported. 69.44Standard deviation not reported. Number of analyses used to calculate mean composition not reported. 0.57Standard deviation not reported. Number of analyses used to calculate mean composition not reported. 15.37 4.36Standard deviation not reported. Number of analyses used to calculate mean composition not reported. 0.21Standard deviation not reported. Number of analyses used to calculate mean composition not reported. 0.63Standard deviation not reported. Number of analyses used to calculate mean composition not reported. 2.37Standard deviation not reported. Number of analyses used to calculate mean composition not reported. 4.66Standard deviation not reported. Number of analyses used to calculate mean composition not reported. 2.47 Standard deviation not reported. Number of analyses used to calculate mean composition not reported. 98.95975EMP4.36

SAMPLE LOCATION

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