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SAMPLE INFO : Jensen_Palisades_East_reference_PAL_average-Pop.1
Sample ID:Jensen_Palisades_East_reference_PAL_average-Pop.1
Station ID:Jensen_Palisades_East
Latitude:65.1
Longitude:-153.19997
Datum:NAD83
Sample Type 1:Tephra Fall
 Text Description:
The composition reported here is the average of analyses of two samples: UT1280 and UT1281. Occurs at elevations of 1-2 m above water level at west and east limits of Palisades East, but ~14 m above water level in the central bluff area. Occurs stratigraphically below the lower peat and is laterally more traceable than PA tephra samples.

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 composition reported here is the average of analyses of two samples: UT1280 and UT1281. Occurs at elevations of 1-2 m above water level at west and east limits of Palisades East, but ~14 m above water level in the central bluff area. Occurs stratigraphically below the lower peat and is laterally more traceable than PA tephra samples.Jensen_Palisades_East_reference_PAL_average-Pop.1Tephra FallCumulateGlass 73.52 0.3 13.46 2.11 0.06 0.32 1.52 3.87 4.25 9361EMP2.11Cl=0.6; H2O=4.32EMP

SAMPLE LOCATION

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Page modified: August 1, 2017 15:29
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