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Sample ID:ANI-49-2
Station ID:ANI-49-2
Date Sampled:2002-07-15
Sample Type 1:Tephra Fall
Final Unit:pre-400 yr
Text Description:
Beige-white tephra in west wall of 1931 vent

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-49-256.9067-158.2119Browne, B. L.2002-07-15 Aniakchak1931 Main Crater wallBeige-white tephra in west wall of 1931 vent ANI-49-2Tephra FallCumulatepre-400 yr Whole-rock 62.69007257 1.00970562 16.41022553 5.878574368 0.191703552 2.127809059 4.887938735 4.546686339 1.87688818 0.380396054 99.6339191XRF5.878574368 1.960778779 43.66657335 607.2653422 350.907428 18.79361271 40.27064149 5.523522749 24.21650734 6.277895417 1.909232286 6.438516466 1.077951577 6.729784043 1.402367688 3.768677354 0.564860155 3.44962696 0.559156414 35.51230252 157.6080452 9.333864786 4.499177752 0.634072846 7.766931113 4.09486734 1.765736255 17.69742783 86 2 4 6 97 19 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, Cr, Ni, Cu, Zn, Ga;


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