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Cores 11 through 26 by Gary B. Dr - University of Illinois at Urbana ...

Cores 11 through 26 by Gary B. Dr - University of Illinois at Urbana ...

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Table 29. Elemental composition <strong>of</strong> samples selected from Core 19Subsample 19-01 19-02 19-03 19-04 19-05 19-13 AverageLab. No. R22019 R22020 R22021 R22022 R22023 R22024Depth Interval (ft) 0.0-0.25 0.25-0.6 0.6-1.0 1.0-1.35 1.35-1.8 5.6-7.0Horizon A A E B B 2BSiO 2(%) 66.88 81.15 78.30 70.10 68.60 77.81 73.81Al 2O 3(%) 6.12 7.52 8.86 13.70 14.66 10.30 10.20Fe 2O 3(%) 2.14 2.64 3.66 5.50 5.73 3.49 3.86K 2O (%) 1.35 1.53 1.65 1.54 1.57 1.75 1.56CaO (%) 8.73 0.71 0.42 0.42 0.48 0.79 1.92MgO (%) 1.17 0.31 0.43 0.92 1.16 0.68 0.78Na 2O (%) 0.83 1.04 1.08 0.87 0.95 1.18 0.99TiO 2(%) 0.59 0.77 0.80 0.81 0.79 0.68 0.74P 2O 5(%) 0.16 0.<strong>11</strong> 0.09 0.08 0.09 0.09 0.10MnO 2(%) 0.20 0.20 0.23 0.06 0.04 0.08 0.13SO 3(%) 0.02 0.01 0.01 0.01 0.01 0.01 0.01Barium 461 557 550 468 558 516 518Chromium

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