Distribution of Trace Elements, Sr-C Isotopes, and Sedimentary Characteristics as Paleoenvironmental Indicator of the Late Permian Linxi Formation in the Linxi Area, Eastern Inner Mongolia
Table 3
Carbon isotopic data of Permian-Early Triassic carbonate rocks in Linxi area and other regions.
C isotope (Linxi Formation of Permian in Linxi area, Inner Mongolia, China)
Sample number
LG3-7T
LG15-1T
LG51-2T
LG72-1T
LG72-5T
LG72-8T
LG72-13T
LG73-1T
LG73-2CT
δ13C
−4.0
−0.3
−0.4
0.1
2.4
−3.3
−3.2
−0.2
−2.6
C isotope (lacustrine carbonate of Triassic in Linxi area, Inner Mongolia, China)
Sample number
BLS-2
BLS-3
BLS-4
BLS-5
BLS-6
BLS-7
BLS-8
BLS-9
BLS-11
δ13C
−6.5
−7.4
−9.4
−8.6
−11.0
−9.9
−8.7
−11.4
−8.5
1C isotope (marine limestone of Permian and lacustrine limestone of Triassic, Inner Mongolia, China)
δ13C
P2
−1.15
−0.71
−2.89
T1
−6.22
−6.22
−12.41
−4.18
2C isotope (marine carbonate of Permian in Khorat basin, Thailand)
δ13C
2.06
3.77
4.17
3.01
3.12
2.75
0.88
4.52
−2.78
3C isotope (marine limestone of the Changhsingian late Permian, Changxing, Zhejiang, China)
δ13C
−3.0
0.0
−0.4
−0.3
1.0
0.9
3.7
1.9
3.9
2.3
3.3
3.8
0.5
1.6
2.9
−0.2
2.2
2.8
−2.5
−1.9
1.7
1.5
1.5
1.9
1.5
2.3
1.9
2.8
2.7
1.4
2.1
2.0
2.4
2.2
1.6
−1.3
−3.4
1.8
1.8
2.0
2.5
2.2
1.8
0.5
−3.0
1Data from He et al. [1]; 2data from Du et al. [13]; 3data from Li. [14].