Research Article
Extremely High Primary Productivity and Organic Matter Enrichment in Lacustrine Sediments: Late Triassic Chang 73 Sub-Member, Western Ordos Basin
Table 1
Rock-Eval pyrolysis data of Chang 73 and Chang 8 intervals from well DP1 in the western Ordos Basin.
| Member | Depth (m) | (°C) | S1 (mg/g) | S2 (mg/g) | (mg/g) | HI index | OSI |
| Chang 73 | 2743.08 | 452.00 | 2.94 | 9.92 | 12.86 | 250.51 | 74.24 | 2743.87 | 449.00 | 3.26 | 14.24 | 17.50 | 303.62 | 69.51 | 2743.96 | 445.00 | 2.43 | 16.06 | 18.49 | 305.90 | 46.29 | 2743.97 | 452.00 | 5.01 | 22.41 | 27.42 | 332.49 | 74.33 | 2744.20 | 442.00 | 1.98 | 15.15 | 17.13 | 298.82 | 39.05 | 2744.57 | 440.00 | 2.30 | 11.81 | 14.11 | 262.44 | 51.11 | 2744.85 | 451.00 | 4.27 | 18.58 | 22.86 | 281.52 | 64.70 | 2745.24 | 445.00 | 2.13 | 17.63 | 19.76 | 292.86 | 35.38 | 2745.33 | 448.00 | 4.23 | 21.39 | 25.62 | 322.62 | 63.80 | 2745.74 | 428.00 | 2.49 | 7.36 | 9.85 | 277.74 | 93.96 | 2745.96 | 439.00 | 3.04 | 9.78 | 12.82 | 247.59 | 76.96 | 2746.42 | 449.00 | 5.49 | 26.65 | 32.14 | 331.47 | 68.28 | 2746.87 | 444.00 | 3.46 | 11.37 | 14.82 | 156.83 | 47.72 | 2747.22 | 445.00 | 6.79 | 39.42 | 46.21 | 428.01 | 73.72 | 2749.16 | 448.00 | 6.10 | 35.86 | 41.96 | 426.90 | 72.62 | 2749.57 | 446.00 | 4.71 | 30.83 | 35.54 | 296.44 | 45.29 | 2750.18 | 452.00 | 5.51 | 32.57 | 38.08 | 381.83 | 64.60 | 2750.64 | 451.00 | 4.80 | 29.40 | 34.21 | 326.67 | 53.33 | 2750.97 | 444.00 | 5.28 | 29.84 | 35.13 | 410.45 | 72.63 | 2752.14 | 447.00 | 4.64 | 20.57 | 25.21 | 478.37 | 107.91 | 2752.50 | 449.00 | 2.19 | 9.03 | 11.22 | 244.72 | 59.35 | 2753.91 | 450.00 | 3.38 | 16.61 | 19.99 | 270.52 | 55.05 | 2754.34 | 452.00 | 3.18 | 17.80 | 20.98 | 297.16 | 53.09 | 2754.71 | 453.00 | 4.64 | 29.09 | 33.73 | 358.25 | 57.14 | 2755.20 | 451.00 | 3.63 | 13.69 | 17.32 | 277.13 | 73.48 | 2755.67 | 451.00 | 4.79 | 21.20 | 25.99 | 345.84 | 78.14 | 2756.18 | 451.00 | 3.34 | 14.81 | 18.16 | 296.20 | 66.80 | 2756.52 | 434.00 | 2.72 | 13.97 | 16.69 | 252.17 | 49.10 | 2757.04 | 443.00 | 4.85 | 19.36 | 24.21 | 369.47 | 92.56 | 2761.17 | 441.00 | 1.93 | 13.05 | 14.98 | 198.63 | 29.38 | 2761.58 | 450.00 | 3.87 | 18.11 | 21.99 | 269.49 | 57.59 | 2764.21 | 452.00 | 1.42 | 21.27 | 22.69 | 331.31 | 22.12 | 2765.03 | 453.00 | 6.12 | 36.48 | 42.60 | 344.15 | 57.74 | 2765.51 | 448.00 | 4.43 | 30.92 | 35.35 | 332.83 | 47.69 | 2765.89 | 442.00 | 3.78 | 27.08 | 30.86 | 409.06 | 57.10 | 2766.76 | 448.00 | 2.64 | 19.39 | 22.03 | 375.78 | 51.16 | 2767.10 | 445.00 | 3.06 | 21.47 | 24.52 | 376.01 | 53.59 | 2768.99 | 444.00 | 1.47 | 12.24 | 13.71 | 303.72 | 36.48 | 2769.27 | 440.00 | 2.00 | 13.09 | 15.09 | 293.17 | 44.79 | 2770.13 | 446.00 | 2.61 | 13.84 | 16.45 | 255.82 | 48.24 | 2770.27 | 440.00 | 3.02 | 18.95 | 21.97 | 308.63 | 49.19 | 2770.68 | 440.00 | 4.76 | 27.12 | 31.87 | 519.54 | 91.19 | 2770.86 | 442.00 | 1.98 | 14.09 | 16.07 | 280.68 | 39.44 | 2771.38 | 440.00 | 3.38 | 21.56 | 24.94 | 318.93 | 50.00 | 2771.96 | 445.00 | 2.09 | 12.43 | 14.53 | 244.69 | 41.14 | 2772.86 | 446.00 | 2.06 | 20.62 | 22.68 | 369.87 | 36.95 | 2773.01 | 449.00 | 3.39 | 17.13 | 20.52 | 256.25 | 50.71 | 2773.93 | 449.00 | 2.78 | 21.15 | 23.94 | 322.41 | 42.38 | 2774.63 | 437.00 | 2.30 | 28.19 | 30.49 | 422.01 | 34.43 | 2775.07 | 443.00 | 2.09 | 21.01 | 23.10 | 260.19 | 25.88 | 2776.48 | 439.00 | 2.90 | 26.99 | 29.89 | 392.30 | 42.15 | 2776.89 | 442.00 | 2.78 | 21.98 | 24.76 | 374.45 | 47.36 | 2777.59 | 438.00 | 0.89 | 12.93 | 13.83 | 495.40 | 34.10 |
| Chang 8 | 2778.18 | 452.00 | 0.25 | 1.26 | 1.51 | 200.96 | 39.87 | 2779.34 | 455.00 | 0.28 | 1.18 | 1.46 | 200.68 | 47.62 | 2781.10 | 446.00 | 0.36 | 1.43 | 1.79 | 177.97 | 48.30 | 2781.57 | 457.00 | 0.38 | 1.18 | 1.55 | 234.83 | 103.07 | 2782.18 | 450.00 | 1.50 | 24.87 | 26.37 | 271.80 | 53.83 | 2784.03 | 447.00 | 0.71 | 2.57 | 3.29 | 174.83 | 107.91 | 2784.25 | 435.00 | 0.84 | 2.92 | 3.76 | 358.28 | 2.95 |
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