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Sample ID:00JLOK29K
Station ID:00JLOK29
Date Sampled:2000-01-01
Sample Type 1:Tephra Fall
Sample Type 2:Scoria
Final Unit:Pcfe1
Text Description:
Andesitic ash and small pumice fragments

Magmatic differentiation at an island-arc caldera: a stratigraphically constrained multi-isotope study of Okmok Volcano, Aleutian Islands, Alaska
Late Pleistocene and Holocene caldera-forming eruptions of Okmok Caldera, 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
00JLOK2953.34016-168.03976Larsen, J. F.2000-01-01 Okmok-10050--Sample from the top of the Okmok I CFE deposits -Missouri CreekAndesitic ash and small pumice fragments00JLOK29KTephra FallCumulatePcfe1Whole-rock 55.70870316 1.417709248 16.39857421 9.767451254 0.198923591 3.695737784 7.987236578 3.513980188 1.080447931 0.231236053 99.0334113XRF9.673 1.5963788631894 21.220928643332 361.92456733484 363.92687886718 10.26891952622 23.814128878627 3.4871891124162 16.399836497406 4.5373369685798 1.4889659029106 5.0980902686908 0.87707462493385 5.5301435077307 1.1624159677942 3.2888653708876 0.47334799742124 2.9981027627401 0.46710319630073 29.891586272788 107.13618387974 3.1269129581433 3.0865450271886 0.23901584623613 8.7201946938313 1.9039863923079 0.9491521874905 33.379571874776 322 21 9 147 89 22 4113ICPMS: 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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