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Sample ID:98JLOK6Ha
Station ID:98JLOK6
Date Sampled:1998-01-01
Sample Type 1:Tephra Fall
Sample Type 2:Scoria
Final Unit:Hcfe2
Text Description:
2050 BP coarse andesite composition fall deposit. Smaller grain size scoria samples. Aphyric. No embedded lithics.

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
Electron probe microanalytical data of minerals and glass from rock samples from Okmok volcano, 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
98JLOK653.38113-167.97003Larsen, J. F.1998-01-01 Okmok-100--2050 BP Okmok II ash low/ignimbrite deposits in a deep stream cut - Camp Creek.2050 BP coarse andesite composition fall deposit. Smaller grain size scoria samples. Aphyric. No embedded lithics.98JLOK6HaTephra FallCumulateHcfe2Whole-rock 58.14296317 1.41621171 15.78877807 9.044235012 0.205365948 2.734823761 6.56764368 4.12765222 1.657160867 0.315165564 98.3614113XRF9.044235012 2.674134294 39.89878198 519.6857676 332.162299 15.93760202 37.38917807 5.234491917 23.05814801 6.368164102 1.750758101 6.848598286 1.187265265 7.832635079 1.630974055 4.545397559 0.667125668 4.290928962 0.67589895 41.35622501 179 5.6976354 5.219599044 0.417774207 13.47268979 3.924795338 1.889521032 29.39372583 217 12 0 67 101 21 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, Cu, Zn, Ga;


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