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Sample ID:ANI-TR-1
Station ID:ANI-TR-1
Date Sampled:2002-07-11
Sample Type 1:Tephra Fall
Sample Type 2:Pumice
Final Unit:Cobweb Tuff Cone
Text Description:
Gray vesicle-poor pyroclasts in tuff 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
ANI-TR-156.912-158.1821Browne, B. L.2002-07-11 Aniakchak1931-5-1Tuff ring in middle of Cobweb lava flowGray vesicle-poor pyroclasts in tuff coneANI-TR-1Tephra FallCumulateCobweb Tuff ConeWhole-rock 62.83503285 1.011648059 16.53500464 5.610414735 0.193462577 2.015235178 4.75595502 4.735802668 1.914473419 0.39297086 99.2449191XRF5.610414735 2.053712835 43.52190337 620.2624432 355.2999228 19.491254 41.63544799 5.834870339 24.94279814 6.408174493 1.966662815 6.651609103 1.105797268 6.908027046 1.409316389 3.894600573 0.574327241 3.639710085 0.580369694 36.65379978 159.815912 9.400811952 4.402074341 0.633716427 7.788618738 4.037661829 1.750903986 17.57755691 63 0 2 7 99 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, Ni, Cu, Zn, Ga;


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