Research Article
Extremely High Primary Productivity and Organic Matter Enrichment in Lacustrine Sediments: Late Triassic Chang 73 Sub-Member, Western Ordos Basin
Table 5
Element geochemical data for of Chang 73 interval from well DP1 in the western Ordos Basin.
| Member | Depth (m) | U/Th | FeT/Al | Ce | Fe/Mn | Mn/Ti | SiO2 (%) | | CIA | | | Sr/Ba |
| Chang 73 | 2764.89 | 0.11 | 0.37 | 0.97 | 52.94 | 0.15 | 66.94 | 23.20 | 70.25 | 8.08 | 0.73 | 0.45 | 2765.31 | 0.15 | 0.50 | 0.97 | 81.35 | 0.13 | 66.72 | 21.74 | 69.23 | 10.67 | 0.66 | 0.52 | 2766.89 | 0.12 | 0.37 | 0.87 | 66.99 | 0.12 | 66.76 | 24.09 | 68.64 | 8.39 | 0.73 | 0.56 | 2767.43 | 0.10 | 0.30 | 0.93 | 56.59 | 0.12 | 66.59 | 24.81 | 71.66 | 6.95 | 0.77 | 0.67 | 2767.92 | 0.11 | 0.36 | 0.92 | 56.44 | 0.14 | 67.74 | 22.96 | 68.92 | 8.04 | 0.73 | 0.59 | 2768.07 | 0.11 | 0.39 | 0.86 | 57.31 | 0.15 | 68.04 | 22.40 | 67.71 | 8.58 | 0.72 | 0.59 | 2768.61 | 0.10 | 0.42 | 0.83 | 72.94 | 0.12 | 67.39 | 22.29 | 69.69 | 8.70 | 0.70 | 0.60 | 2768.72 | 0.12 | 0.35 | 0.84 | 80.08 | 0.10 | 66.41 | 24.12 | 75.22 | 7.80 | 0.74 | 0.70 | 2769.5 | 0.11 | 0.37 | 0.87 | 57.99 | 0.14 | 67.39 | 23.55 | 70.60 | 7.98 | 0.73 | 0.56 | 2770.13 | 0.12 | 0.32 | 0.82 | 57.11 | 0.12 | 67.72 | 23.88 | 75.66 | 6.86 | 0.76 | 0.54 | 2770.43 | 0.09 | 0.38 | 0.90 | 39.33 | 0.21 | 67.82 | 22.32 | 78.24 | 8.41 | 0.72 | 0.63 | 2770.86 | 0.11 | 0.32 | 0.86 | 43.20 | 0.16 | 67.99 | 23.64 | 81.70 | 7.27 | 0.75 | 0.54 | 2771.96 | 0.11 | 0.43 | 0.82 | 78.35 | 0.12 | 66.72 | 22.98 | 83.24 | 9.45 | 0.70 | 0.51 | 2772.52 | 0.14 | 0.53 | 1.03 | 46.86 | 0.25 | 61.41 | 21.93 | 82.83 | 11.93 | 0.65 | 1.35 | 2773.01 | 0.11 | 0.40 | 0.95 | 54.37 | 0.15 | 67.99 | 22.57 | 81.00 | 8.24 | 0.71 | 0.60 |
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