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Sample ID:ANI-02-02b
Station ID:ANI-02-02
Date Sampled:2002-07-07
Sample Type 1:Tephra Fall
Sample Type 2:Pumice
Final Unit:Brown Pumice
Text Description:
Brown pyroclast at base of Brown Pumice fall

Postglacial eruptive history, geochemistry, and recent seismicity of Aniakchak Volcano, Alaska
The ~400 yr b.p. eruption of Half-Cone, a post-caldera composite cone within Aniakchak Caldera, Alaska Peninsula

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
ANI-02-0256.9182-158.2046Browne, B. L.2002-07-07 AniakchakHalf Cone southwest wallBrown pyroclast at base of Brown Pumice fallANI-02-02bTephra FallCumulateBrown PumiceWhole-rock 66.93464704 0.783792225 16.0183758 3.925005793 0.165220983 1.208934022 3.354791912 4.906257241 2.468240296 0.234734689 99.2619191XRF3.925005793 2.69766793 57.44722351 764.0134926 277.6779006 23.07190253 48.47078927 6.492334926 27.67954414 6.909544127 1.856442079 6.978233367 1.191479615 7.316504658 1.513063259 4.273507253 0.630799523 4.035729926 0.650154931 38.84488379 204.0379598 11.94916652 5.769577877 0.820854679 8.880268075 5.401104086 2.374027444 13.95904858 39 1 3 4 85 17 9191ICPMS: 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;


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