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SAMPLE INFO : UA1602-P2
Sample ID:UA1602-P2
Station ID:UA1602
Latitude:63.5
Longitude:-162.1
Datum:NAD83
Sample Type 1:Tephra Fall
Text Description:
Bubble-walled and tricuspate shards, some blocky glass and pumice, brown glass present. Major and minor minerals: palgioclase, orthopyroxene, magnetite. Trace minerals: clinopyroxene, apatite, amphibole, ilmenite. Rhyolite component is crystal poor.

References:
Late Quaternary tephrostratigraphy, Ahklun Mountains, SW Alaska
Late Pleistocene and Holocene tephrostratigraphy of interior Alaska and Yukon: Key beds and chronologies over the past 30,000 years
Timing and causes of mid-Holocene mammoth extinction on St. Paul Island, Alaska
Chronology and glass chemistry of tephra and cryptotephra horizons from lake sediments in northern Alaska, USA

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
UA160263.5-162.1Ager, T. A. 3435 ± 40 14C; 7443; Age is approximate. Average of proximal and distal dates; averages calculated using the method of Stuiver and Reimer (1986). See Beget et a. (1992) Table 3.-1480--Aniakchak reference sample from Zagoskin Lake. No other information provided. Bubble-walled and tricuspate shards, some blocky glass and pumice, brown glass present. Major and minor minerals: palgioclase, orthopyroxene, magnetite. Trace minerals: clinopyroxene, apatite, amphibole, ilmenite. Rhyolite component is crystal poor.UA1602-P2Tephra FallCumulateGlass 71 0.47 15.12 2.47 0.13 0.5 2.07 5.06 3 10013071EMP2.47Cl=0.19; H2O=1.68EMP
UA160263.5-162.1Ager, T. A. 3435 ± 40 14C; 7443; Age is approximate. Average of proximal and distal dates; averages calculated using the method of Stuiver and Reimer (1986). See Beget et a. (1992) Table 3.-1480--Aniakchak reference sample from Zagoskin Lake. No other information provided. Bubble-walled and tricuspate shards, some blocky glass and pumice, brown glass present. Major and minor minerals: palgioclase, orthopyroxene, magnetite. Trace minerals: clinopyroxene, apatite, amphibole, ilmenite. Rhyolite component is crystal poor.UA1602-P2Tephra FallCumulateGlass 71.14 0.49 15.13 2.52 0.14 0.48 1.75 5.1 3.08 10012991EMP2.52Cl=0.19; H2O=1.64EMP
UA160263.5-162.1Ager, T. A. 3435 ± 40 14C; 7443; Age is approximate. Average of proximal and distal dates; averages calculated using the method of Stuiver and Reimer (1986). See Beget et a. (1992) Table 3.-1480--Aniakchak reference sample from Zagoskin Lake. No other information provided. Bubble-walled and tricuspate shards, some blocky glass and pumice, brown glass present. Major and minor minerals: palgioclase, orthopyroxene, magnetite. Trace minerals: clinopyroxene, apatite, amphibole, ilmenite. Rhyolite component is crystal poor.UA1602-P2Tephra FallCumulateGlass 71.127788545458 0.50040078540385 15.197077935326 2.548977966822 0.14194297710289 0.50156517040324 1.7940047919669 4.9865955570632 3.0528442142273 10010771EMP2.548977966822Cl=0.19209139227126; H2O=2.7953666666667EMP
UA160263.5-162.1Ager, T. A. 3435 ± 40 14C; 7443; Age is approximate. Average of proximal and distal dates; averages calculated using the method of Stuiver and Reimer (1986). See Beget et a. (1992) Table 3.-1480--Aniakchak reference sample from Zagoskin Lake. No other information provided. Bubble-walled and tricuspate shards, some blocky glass and pumice, brown glass present. Major and minor minerals: palgioclase, orthopyroxene, magnetite. Trace minerals: clinopyroxene, apatite, amphibole, ilmenite. Rhyolite component is crystal poor.UA1602-P2Tephra FallCumulateGlass 71.13 0.49 15.24 2.55 0.14 0.5 1.75 5.13 2.96 0.19 97.7210151EMP2.55
UA160263.5-162.1Ager, T. A. 3435 ± 40 14C; 7443; Age is approximate. Average of proximal and distal dates; averages calculated using the method of Stuiver and Reimer (1986). See Beget et a. (1992) Table 3.-1480--Aniakchak reference sample from Zagoskin Lake. No other information provided. Bubble-walled and tricuspate shards, some blocky glass and pumice, brown glass present. Major and minor minerals: palgioclase, orthopyroxene, magnetite. Trace minerals: clinopyroxene, apatite, amphibole, ilmenite. Rhyolite component is crystal poor.UA1602-P2Tephra FallCumulateGlass 59.21 1.35 16.63 7.51 0.22 2.76 6.2 4.42 1.59 Reported standard deviation of zero. 1007993EMP7.51Cl=0.12; H2O=2.6EMP

SAMPLE LOCATION

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