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SAMPLE INFO : 12AKMC032
Sample ID:12AKMC032
Station ID:12AKMC032
Latitude:54.10831
Longitude:-165.93518
Datum:NAD83
Date Sampled:2012-07-30
Sample Type 1:Lava
Final Unit:lcb
Text Description:
Ice-contact lava flow def. below MC031. Brecciated top, flow forms 18-m-tall face with chaotic apparently horizontal columns, variably glassy. 20-25% <1-3 mm seriate plag, ~5% cpx to 3 mm, maybe rare alt ol, dark gray gmass. Could be used to constrain ice thickness

References:
The eruptive history, magmatic evolution, and influence of glacial ice at long-lived Akutan volcano, eastern Aleutian Islands, Alaska

GEOCHEM DATA
StationIDLatitudeLongitudeGeologistDateVisitedAge InfoVolcanoEruptionLocation DescriptionText DescriptionSample IDSample Type 1Sample Type 2Final UnitMaterialSiO2TiO2Al2O3FeOTMnOMgOCaONa2OK2OP2O5Total-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
12AKMC03254.10831-165.93518Coombs, M. L.2012-07-30 43000 ± 8000 40Ar/39Ar; 14991; AkutanNW side of Cascade Bight ventIce-contact lava flow def. below MC031. Brecciated top, flow forms 18-m-tall face with chaotic apparently horizontal columns, variably glassy. 20-25% <1-3 mm seriate plag, ~5% cpx to 3 mm, maybe rare alt ol, dark gray gmass. Could be used to constrain ice thickness12AKMC032LavalcbWhole-rock 53.97224011 0.97222289 19.55276286 8.314102903 0.184345849 3.602617421 8.984895553 3.461978005 0.823094456 0.13172995 99.2943974414991XRF8.314102903 1.013804086 16.53921189 291.7195946 425.8635058 7.21670177 16.86837085 2.473812592 11.47118017 3.384618582 1.130276688 3.826102805 0.67420191 4.382636302 0.918909065 2.601865557 0.385368675 2.466074835 0.389810178 23.56111072 83.23809772 1.652692917 2.421976059 0.128501726 6.804792848 2.194912076 1.00208345 24.51608411 242.9336 5.6658 6.6598 78.9236 74.4506 17.9914 14991ICPMS: Cs, Rb, Ba, Sr, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Y, Zr, Nb, Hf, Ta, Pb, Th, U, Sc; XRF: V, Cr, Ni, Cu, Zn, Ga;

SAMPLE LOCATION

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