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Sample ID:NA93-85
Station ID:NA93-85
Sample Type 1:Tephra Fall
Sample Type 2:Agglutinate
Final Unit:Brown Pumice
Text Description:
Brown agglutinate, Surprise Cone

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
NA93-8556.9102-158.1313Neal, C. A. AniakchakBase of Surprise ConeBrown agglutinate, Surprise ConeNA93-85Tephra FallCumulateBrown Pumice Whole-rock 60.11 1.085 16.2 7.34 0.188 2.55 5.89 4.62 1.72 0.297 100.19191XRF7.34 1.87709822 41.06795271 557.5643735 0 17.20867647 37.34799537 5.126072432 22.31798403 5.662644949 1.730526128 6.045774977 1.007618645 6.157908331 1.280298736 3.442202529 0.518241543 3.337179024 0.521528897 33.39758325 152.1651033 8.869287789 4.082038049 0.595471083 7.613450138 3.629300146 1.578750757 0 166 7 0 16 98 21 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, Cu, Zn, Ga;


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