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Sample ID:NA92-35C
Station ID:NA92-35
Sample Type 1:Tephra Fall
Sample Type 2:Agglutinate
Final Unit:Brown Pumice
Text Description:
Brown agglutinate, north caldera rim

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
NA92-3556.9366-158.1968Neal, C. A. AniakchakNorth caldera rimBrown agglutinate, north caldera rimNA92-35CTephra FallCumulateBrown Pumice Whole-rock 59.26 1.139 16.45 7.6 0.19 2.83 6.25 4.33 1.65 0.294 100.259191XRF7.6 1.670623256 33.24309808 523.8918853 0 15.7301849 34.67018016 4.733007602 20.90893934 5.54936924 1.719221024 5.584668934 0.969695474 6.06353507 1.255357563 3.349005791 0.489117618 3.082390469 0.503015835 30.94633329 134.6791188 8.036173951 4.067062594 0.576764925 7.59843321 3.356749011 1.481894328 0 156 5 2 17 94 22 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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