Recognition of Petroleum Origin in the Northern Piedmont Belt of Turpan-Hami Basin and Its Significance

Table 2

Chloroform asphalt and its group component carbon isotope of the inclusions and source rocks. Note: data of coal measure source rock in Taipei depression come from reference [30].

Location	Depth or layer	Sample	δ^13CPDB(‰)	Composition δ^13CPDB(‰)
			Chloroform A	Saturated hydrocarbon	Aromatic hydrocarbon	Nonhydrocarbon	Asphaltene
Ke19	3277	Inclusion	-26.1	-26.7	-25.1	-26.2	-25.2
Ke19	3395.9	Inclusion	-27.4	-27.2	-26.1	-27.1	-26.8
Ke19	3275	Inclusion	-27.5	-26.4	-26.5	-25.3	-26.5
Ke13	2388.8	Inclusion	-26.6	-26.5	-27.5	-26.7	-25.9
Ke24	3116.5	Inclusion	-27.5	-26.9	-26.6	-27.0	-27.2
Ke21	3613.3	Inclusion	-26.6	-26.5	-25.8	-26.5	-27.1
Le3	3306.6	Inclusion	-26.4	-26.8	-26.1	-26.2	-25.3
Le1	2555.4	Inclusion	-26.1	-26.9	-25.3	-25.9	-24.6
Zhao4	3924.3	Inclusion	-25.9	-26.0	-25.6	-25.9	-26.4
Taerlanggou	Taodonggou	Mudstone	-30.8	-33	-30.4	-31.5	-29.3
	Taodonggou	Mudstone	-33.6	-34	-32.5	-33.9	-32.6
	Taodonggou	Mudstone	-31.6	-32.2	-29.8	-30.9	-31
	Taodonggou	Mudstone	-30.8	-32.1	-30	-30.3	-30.1
Taibei Sag	Shuixigou	Coal measure source rock	-25.3~-27.7	-26.9~-28.8	-23.01~-28	-24.4~-27.1	-23.9~-26.8