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Sample ID:NA92-26D
Station ID:NA92-26
Sample Type 1:Tephra Fall
Sample Type 2:Pumice
Final Unit:Brown Pumice
Text Description:
Dark brown pyroclast near The Gates

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
NA92-2656.9024-158.085Neal, C. A. AniakchakNear The GatesDark brown pyroclast near The GatesNA92-26DTephra FallCumulateBrown PumiceWhole-rock 58.86 1.158 16.66 7.82 0.194 2.84 6.42 4.16 1.58 0.301 99.749191XRF7.82 1.744942068 33.71644778 498.5487287 0 15.89623174 34.88613071 4.779540748 21.15338267 5.683043912 1.736168364 5.971584195 0.977914541 5.945178615 1.250712463 3.379794738 0.5057729 3.067718508 0.499380897 31.26763027 136.2545275 8.129119108 3.860317241 0.576006484 8.06185067 3.503732774 1.478648521 0 190 7 2 22 99 20 9191ICPMS: Cs, Rb, Ba, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Y, Zr, Nb, Hf, Ta, Pb, Th, U; XRF: V, Cr, Ni, Cu, Zn, Ga;


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