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SAMPLE INFO : 90ADg-3
Sample ID:90ADg-3
Station ID:90ADg-3
Latitude:61.405507631903
Longitude:-141.69654158085
Datum:NAD83
Date Sampled:1990-00-00
Sample Type 1:Lava
Sample Type 2:Flow
Field Lithology:Dacite
Text Description:
Summit lava; Flow-banded dacite that underlies tephra. Pyroxene-bearing, hornblende dacite, mineralogically distinct from the tephra. Plagioclase from the dacite yielded a K/Ar date of 119 +/- 17 ka (N. Shew, written communication, 1991).

References:
Mount Churchill, Alaska: source of the late Holocene White River Ash

GEOCHEM DATA
StationIDLatitudeLongitudeGeologistDateVisitedVolcanoEruptionLocation DescriptionText DescriptionSample IDMaterialSiO2TiO2Al2O3FeOTMnOMgOCaONa2OK2OP2O5Total-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
90ADg-361.405507631903-141.69654158085McGimsey, R. G.1990-00-00Churchill, MtSummit area of Mount ChurchillSummit lava; Flow-banded dacite that underlies tephra. Pyroxene-bearing, hornblende dacite, mineralogically distinct from the tephra. Plagioclase from the dacite yielded a K/Ar date of 119 +/- 17 ka (N. Shew, written communication, 1991). 90ADg-3Whole Rock 65.5 0.6 16.6 3.29 0.06 1.76 5.04 4.53 2.07 0.46 99.9755DCP3.653.29LOI=0.13DCP 951 12 bdl 43 57 55MX 39 812 17.6 38.9 16.2 3.3 1 3.1 2.6 1.6 1.4 0.2 139 6.2 7.1 1.9 6.1 54 7 18.955XRF: Rb, Zr, Nb, Th, U, Ni, Ga; DCP: Ba, La, Ce, Nd, Sm, Eu, Gd, Dy, Er, Yb, Lu, Sc, V; Rb V=48, M=NN, R=187;Sr V=910, M=NN, R=187;Ba V=760, M=NN, R=187;Ce V=74, M=NN, R=187;La V=28 <30, M=NN, R=187;Nb V=5 <10, M=NN, R=187;Zr V=156, M=NN, R=187;Y V=10, M=NN, R=187;Cu V=34, M=NN, R=187;Ni V=9 <10, M=NN, R=187;Zn V=44, M=NN, R=187;Cr V=17 <20, M=NN, R=187;
90ADg-361.405507631903-141.69654158085McGimsey, R. G.1990-00-00Churchill, MtSummit area of Mount ChurchillSummit lava; Flow-banded dacite that underlies tephra. Pyroxene-bearing, hornblende dacite, mineralogically distinct from the tephra. Plagioclase from the dacite yielded a K/Ar date of 119 +/- 17 ka (N. Shew, written communication, 1991). 90ADg-3Whole Rock 65.9 0.58 16.7 3.33 0.05 1.7 4.86 4.43 2.1 0.22 98.76187NN3.340.27H2OP=0.02; H2OM=0.03; CO2=0.02RAPIDARb V=48, M=NN, R=187;Sr V=910, M=NN, R=187;Ba V=760, M=NN, R=187;Ce V=74, M=NN, R=187;La V=28 <30, M=NN, R=187;Nb V=5 <10, M=NN, R=187;Zr V=156, M=NN, R=187;Y V=10, M=NN, R=187;Cu V=34, M=NN, R=187;Ni V=9 <10, M=NN, R=187;Zn V=44, M=NN, R=187;Cr V=17 <20, M=NN, R=187;

SAMPLE LOCATION

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