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SAMPLE INFO : ACT-1080
Sample ID:ACT-1080
Station ID:WL4
Latitude:63.4
Longitude:-150.8
Datum:NAD83
Sample Type 1:Tephra Fall
Text Description:
Sample ID WL4C-2. Tephra sample from 286 cm depth in core. Four-to-six-cm-thick, dense, brown, silt layer that exhibits high MS. Difficult to identify tephra in the core stratigraphies because it is dispersed within the upper portion of a clay unit that is about 10 cm thick.

References:
Three Holocene tephras identified in lacustrine sediment cores from the Wonder Lake area, Denali National Park and Preserve, Alaska, USA
Late Pleistocene and Holocene tephrostratigraphy of interior Alaska and Yukon: Key beds and chronologies over the past 30,000 years

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
WL463.4-150.8Child, J. K.< 10060 ± 70 14C AMS; 498; Radiocarbon dated wood fragment from below tephra in Wonder Lake core WL18 (lab ID CAMS-12264). 243-245 cm depth. Sediment core recovered from Wonder Lake, Denali National Park and Preserve, Alaska, with a modified Nesje corer. Coordinates not provided, location absent from Figure 2 of Child and others (1998) so generic location in Wonder Lake selected.Sample ID WL4C-2. Tephra sample from 286 cm depth in core. Four-to-six-cm-thick, dense, brown, silt layer that exhibits high MS. Difficult to identify tephra in the core stratigraphies because it is dispersed within the upper portion of a clay unit that is about 10 cm thick. ACT-1080Tephra FallCumulateGlass 61.14 1.18 16.76 2.29 5.11 4.59 1.8 100498EMP7.01Cl=0.1; H2O=1.91EMP

SAMPLE LOCATION

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