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Sample ID:NA92-34C
Station ID:NA92-34
Sample Type 1:Tephra Fall
Sample Type 2:Pumice
Final Unit:Half Cone
Text Description:
Half Cone 400 yr B.P. upper Pink Pumice caldera rim above Surprise Lake

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
NA92-3456.9457-158.1125Neal, C. A. AniakchakCaldera rim above Surprise Lake Half Cone 400 yr B.P. upper Pink Pumice caldera rim above Surprise LakeNA92-34CTephra FallCumulateHalf ConeWhole-rock 66.79957093 0.794389686 15.84731527 4.027606307 0.162925783 1.032200611 3.359711793 5.252079581 2.489425004 0.234775041 98.8189191XRF4.027606307 2.54 59.35 742.3195762 0 21.98057611 46.22380335 6.163846115 26.59192035 6.51 1.803247809 6.660935259 1.12 6.93 1.45 4.038146235 0.61 3.81 0.63 37.51299084 0 11.49190162 5.340323903 0.818612533 8.92 5.136641034 2.190533039 0 24 1 5 5 73 18 9191ICPMS: Cs, Rb, Ba, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Y, Nb, Hf, Ta, Pb, Th, U; XRF: V, Cr, Ni, Cu, Zn, Ga;


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