Correlation of Maturity Parameters Derived from Methylphenanthrenes and Methyldibenzothiophenes in the Carboniferous Source Rocks from Qaidam Basin, NW China
Table 1
Basic sample information and results from Rock-Eval pyrolysis, vitrinite reflectance measurement, and solvent extraction.
Well
Depth (m)
Lithology
PI
HI
RC
TOC
δn
EOM
mg/g
mg/g
°C
%
mg/g.c
%
%
%
%
mg/g
ZK1-1
88.6
Mudstone
0.06
0.36
470
14.29
35
0.98
1.03
1.09
0.07
0.23
ZK1-1
110.1
S. mudstone
0.29
2.97
466
8.90
71
3.88
4.17
1.00
0.58
ZK1-1
127.1
Mudstone
0.15
1.18
473
11.28
61
1.78
1.92
1.11
0.05
0.39
ZK1-1
196.2
S. mudstone
0.04
0.29
459
12.12
33
0.84
0.88
0.84
0.50
ZK1-1
220.5
Mudstone
0.16
1.87
473
7.88
68
2.58
2.77
1.14
0.11
0.58
ZK1-1
310.2
S. mudstone
0.13
1.15
481
10.16
42
2.61
2.73
1.36
0.32
ZK1-1
324
Mudstone
0.10
1.21
476
7.63
37
3.11
3.24
1.22
0.09
0.55
ZK5-1
114
Mudstone
0.11
0.66
455
14.29
50
1.25
1.33
0.79
0.10
0.23
ZK5-1
210
Siltstone
0.13
2.09
462
5.86
84
2.29
2.50
0.98
0.14
0.48
ZK5-1
253
S. mudstone
0.61
5.11
457
10.66
75
6.33
6.83
0.79
0.82
ZK5-1
350
Siltstone
0.03
0.39
478
7.14
25
1.51
1.56
1.28
0.18
ZK5-1
494
S. mudstone
0.09
1.09
476
7.63
49
2.10
2.22
1.29
0.13
0.18
ZK5-1
505
S. mudstone
0.08
1.43
478
5.30
36
3.79
3.93
1.37
0.05
0.33
ZK5-2
62
Mudstone
0.06
1.25
468
4.58
60
1.96
2.09
1.07
0.11
0.27
ZK5-2
112
Mudstone
0.15
3.67
472
3.93
82
4.10
4.47
1.09
0.09
0.53
ZK5-2
175
Mudstone
0.03
0.56
469
5.08
50
1.07
1.13
1.08
0.38
ZK2-1
50
Mudstone
0.02
0.15
457
11.76
50
0.27
0.30
0.74
0.01
0.07
ZK2-1
530
Mudstone
0.07
0.66
468
9.59
51
1.23
1.30
1.05
0.20
ZK2-1
550
Mudstone
0.10
0.44
470
18.52
40
1.03
1.09
1.09
0.08
0.31
ZK2-2
228
Mudstone
0.09
1.03
474
8.04
56
1.72
1.85
1.19
0.50
ZK2-2
735
Mudstone
0.08
0.77
480
9.41
36
2.07
2.15
1.33
0.24
S. mudstone: silty mudstone; EOM: extractable organic matter; δn: standard deviation of measured ;: calculated from .
