[Retracted] Use of Geochemical Fossils as Indicators of Thermal Maturation: An Example from the Anambra Basin, Southeastern Nigeria
Table 1
Data of TOC and rock-eval pyrolysis.
Sample ID number
Depth (meter)
SOM (ppm)
TOC (wt%)
(mg/g)
(mg/g)
(mg/g)
(°C)
HI
OI
PI )
GP )
V1
−224.5
ND
3.3
0.55
4.57
1.11
428
138
34
4.12
0.11
5.12
V2
−223
3381
66.24
4.28
153.7
12.07
431
232
18
12.73
0.03
158.51
V3
−222
3160
63.51
3.87
155.8
15.79
434
245
25
9.87
0.02
159.67
V4
−220.5
ND
1.91
0.12
3.54
1.11
432
185
58
3.19
0.03
3.66
V5
−227.5
467.8
7.49
0.54
17.71
1.67
433
237
22
10.6
0.03
18.25
V6
−231.5
1904.8
8.52
0.71
14.25
2.33
426
167
27
6.12
0.05
14.95
V7
−232.5
ND
3.2
0.28
2.66
1.31
428
83
41
2.03
0.1
2.94
V8
−232
4095.2
69.51
7.75
169.61
14.33
429
244
20
11.84
0.04
177.36
P1
−168.5
546.7
7.98
0.77
12.55
2.53
435
157
32
4.96
0.06
13.32
P2
−169
ND
67.77
6.22
153.35
12.68
427
226
19
12.09
0.04
159.57
P3
−172.5
250.1
2.24
0.37
3.7
1.3
431
165
58
2.85
0.09
4.07
P4
−174.5
ND
1.61
0.31
2.25
1.43
431
142
90
1.57
0.12
2.56
P5
−175.5
ND
1.96
0.25
2.09
0.49
427
107
25
4.27
0.11
2.34
Notes: TOC = weight percentage organic carbon in rock. = mg hydrocarbons per gram of rock. = mg carbon dioxide per gram of rock. GP = petroleum generic potential = . ND = not done. HI = Hydrogen Index = /TOC. OI = oxygen index = /TOC. = °C. PI = production index = .
