Table 5. Rock-Eval analysis of sediment from Site 1004. Site H Core T Sec Top Bot Depth Tmax S1 S2 S3 PI S2/S3 HI OI PC cm cm mbsf oC 1004 A 5 H 4 39 40 38.69 435 0.17 1.92 1.49 0.08 1.29 300 233 1004 A 7 H 4 39 40 57.69 434 0.12 1.27 1.48 0.08 0.86 240 280 1004 A 10 H 2 39 40 78.19 422 0.44 5.32 2.00 0.08 2.66 466 175 1004 A 14 X 2 39 40 109.39 427 0.78 11.41 2.59 0.06 4.41 551 125 1004 A 14 X 4 39 40 112.39 421 2.89 11.43 3.44 0.20 3.33 436 131 1004 A 17 X 1 39 40 135.79 425 0.28 1.67 2.09 0.14 0.80 269 337 Notes: S1 = concentrations of free hydrocarbons in the rock samples (in mg/g); S2 = concentrations of hydrocarbons produced by kerogen cracking (in mg/g); S3 = quantity of organic CO2 produced during pyrolysis of the rock (in mg/g); Tmax = temperature (oC) at which the maximum amount of hydrocarbons are generated from the kerogen during the pyrolysis; HI = hydrogen index (S2/TOC × 100); OI = oxygen index (S3/TOC × 100); and PI = production index (S1/[S1 + S2]).