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SAMPLE INFO : UA1308-Pop.1
Sample ID:UA1308-Pop.1
Station ID:Jensen_Palisades_East
Latitude:65.1
Longitude:-153.19997
Datum:NAD83
Sample Type 1:Tephra Fall
 Text Description:
The only sample of Jensen_Palisades-7. Also the only sample collected at Site D1, where it was present as a wispy, white, discontinuous lamina <0.1 cm thick, reworked into the upper 20 cm of an organic-rich silt bed containing wood fragments up to 30 cm in length (see Figs. 2 and 4B of Jensen and others, 2013).

References:
The Palisades is a key reference site for the middle Pleistocene of eastern Beringia: new evidence from paleomagnetics and regional tephrostratigraphy

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
Jensen_Palisades_East65.1-153.19997Jensen, B. J. L. The Palisades are on the south bank of the Yukon River in Nowitna National Wildlife Refuge, ~70 km downstream of Tanana village. Palisades East forms a heavily gullied, cliff-like exposure that is generally ~40-45 m in height, but ranges from ~25 m high at Site E to ~55-60 m high at Site D. It is difficult to access safely, with many near-vertical exposures and overhanging blocks of frozen sediment that frequently break free into the Yukon River. Location imprecisely georeferenced from Figure 1 in Jensen et al. (2013). Multiple sections were mapped and sampled across Palisades East: Site B1, B2, IB4, F, D1, and D2. See Jensen et al. (2013).The only sample of Jensen_Palisades-7. Also the only sample collected at Site D1, where it was present as a wispy, white, discontinuous lamina <0.1 cm thick, reworked into the upper 20 cm of an organic-rich silt bed containing wood fragments up to 30 cm in length (see Figs. 2 and 4B of Jensen and others, 2013).UA1308-Pop.1Tephra FallCumulateGlass 74.14 0.24 14.8 1.44 0.04 0.45 1.88 4.15 2.82 9361EMP1.44Cl=0.04; H2O=5.58EMP

SAMPLE LOCATION

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