Table 2 Rock Eval data, C/H/N elemental content in surface sediment and stable carbon isotopic composition of organic matter
Sample | TOC (wt%) | MINC (wt%) | HI (mg HC/g TOC) | OI (mg CO2/g TOC) | Tmax (°C) | S1 (mg HC/g) | S2a (mg HC/g) | S2b (mg HC/g) | S3 | Total nitrogen (wt%) | Total carbon (wt%) | Total hydrogen (wt%) | δ13C (‰) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
LA-01 | 0.5 | 4.93 | 373 | 379 | 423 | 0.02 | 1.87 | 0 | 1.9 | 0.071 | 5.688 | 1 | − 15.153 |
LA-02 | NA | NA | NA | NA | NA | NA | NA | NA | NA | 0.059 | 4.618 | 0.181 | − 15.395 |
LA-03 | 0.08 | 4.12 | 346 | 738 | 425 | 0.01 | 0.28 | 0 | 0.61 | 0 | 3.927 | 0.074 | − 16.062 |
LA-04 | 0.07 | 3.62 | 370 | 682 | 425 | 0 | 0.27 | 0 | 0.5 | 0 | 3.583 | 0.066 | − 16.686 |
LA-05 | 0.11 | 4.52 | 281 | 564 | 427 | 0 | 0.32 | 0 | 0.63 | 0.013 | 4.518 | 0.083 | − 16.612 |
LA-06 | 0.08 | 4.17 | 325 | 823 | 426 | 0 | 0.25 | 0 | 0.64 | 0 | 4.393 | 0.08 | − 16.219 |
LA-07 | 0.09 | 5.57 | 213 | 697 | 427 | 0 | 0.19 | 0 | 0.62 | 0.026 | 7.782 | 0.148 | − 16 |
LA-08 | 0.29 | 9.04 | 250 | 394 | 433 | 0 | 0.73 | 0 | 1.15 | 0.028 | 8.867 | 0.158 | − 15.63 |
LA-09 | 0.39 | 8.73 | 238 | 352 | 427 | 0 | 0.92 | 0 | 1.36 | 0.031 | 8.975 | 0.172 | − 14.578 |
LA-10 | 0.9 | 8.36 | 348 | 298 | 417 | 0.02 | 3.13 | 0 | 2.68 | 0.088 | 9.074 | 0.288 | − 16.039 |