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Sample ID:98JLOK2A
Station ID:98JLOK2
Date Sampled:1998-01-01
Sample Type 1:Pyroclastic Flow
Sample Type 2:Scoria
Text Description:
2050 BP andesite ash flow scoria. Base of andesitic ignimbrite. Aphryic, no lithics. Unwelded base of small section '2'

Magmatic differentiation at an island-arc caldera: a stratigraphically constrained multi-isotope study of Okmok Volcano, Aleutian Islands, Alaska

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
98JLOK253.48319-168.08036Larsen, J. F.1998-01-01 Okmok-100--2050 BP andesite ash flow scoria2050 BP andesite ash flow scoria. Base of andesitic ignimbrite. Aphryic, no lithics. Unwelded base of small section '2'98JLOK2APyroclastic FlowBombWhole-rock 55.23509698 1.498933685 16.00487458 10.1614705 0.206154159 3.635625063 7.992281913 3.706712704 1.279577536 0.279272875 98.474113XRF10.1614705 2.051177339 30.01095846 408.4109664 341.7077713 12.9928266 30.81269913 4.319353892 19.53994178 5.467796972 1.58263126 5.998268983 1.033750289 6.773710078 1.442006434 3.917981347 0.558774047 3.605389405 0.557252285 34.32095589 146 4.439869857 4.09232648 0.335500537 8.200512284 2.962358965 1.471112605 34.6090195 333 24 23 100 100 20 4113ICPMS: Cs, Rb, Ba, Sr, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Y, Nb, Hf, Ta, Pb, Th, U, Sc; XRF: Zr, V, Cr, Ni, Cu, Zn, Ga;


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