Biomarkers and C and S Isotopes of the Permian to Triassic Solid Bitumen and Its Potential Source Rocks in NE Sichuan Basin
Table 2
Rock Eval pyrolysis data of the potential source rocks.
Sample number
Age
S1 (mg/g)
S2 (mg/g)
S1/(S1 + S2)
S1 + S2
(°C)
S3 (mg/g)
TOC (%)
HI
OI
ZB-19
Cam
0.01
0.04
0.20
0.05
605
0.15
5.3
0.76
2.9
ZB-21
S1l
0.04
0.33
0.11
0.37
603
0.16
6.0
5.5
2.7
ZB-09-01
P3w
0.02
0.09
0.18
0.11
605
0.49
1.2
7.4
40
GZ-15
P3w
0.04
1.33
0.03
0.03
603
0.44
15.7
8.5
2.8
ZB-14-01
P3d
0.26
2.30
0.10
2.56
477
0.35
7.2
32
4.9
ZB-17-03
P3d
0.21
1.81
0.10
2.02
469
0.14
3.6
50
3.9
LD-7
P3d
0.01
0.21
0.05
0.22
540
—
4.8
4.3
—
LD-10
P3d
0.02
0.12
0.14
0.14
530
—
2.3
52
—
CJ-36
P3d
0.14
14.02
0.01
0.01
436
6.00
11.1
126
54
CJ-43
P3d
0.06
0.98
0.06
0.06
429
0.20
0.33
297
61
: temperature of maximum of S2 peak; S1: liquid hydrocarbon potential; S2: residual petroleum potential; PI: production index S1/(S1 + S2); HI: hydrogen index, in mg HC/g TOC; OI: oxygen index, in mg HC/g TOC.
