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Sample ID:NA92-38
Station ID:NA92-38
Sample Type 1:Tephra Fall
Sample Type 2:Bomb
Final Unit:1931
Text Description:
1931 glassy, brown and sparesely porphyritic bomb on surface near Doublet Crater

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
NA92-3856.8876-158.201Neal, C. A. Aniakchak1931-5-1Near Doublet Crater on surface1931 glassy, brown and sparesely porphyritic bomb on surface near Doublet CraterNA92-38Tephra FallCumulate1931Whole-rock 65.38 0.888 16.02 4.54 0.166 1.34 3.75 5.13 2.5 0.285 100.149191XRF4.54 2.576757641 53.44330552 716.6354935 0 22.16653296 47.6412477 6.492422987 28.08985289 6.73054235 1.939812027 7.410865922 1.248262722 7.601677264 1.547599109 4.194249165 0.641645325 3.99309277 0.654332188 40.18337646 205.8988855 12.00308428 5.573253626 0.755479843 8.572611607 5.142144796 2.276150422 0 40 6 7 7 87 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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