Geochemical Characteristics and Origins of the Crude Oil of Triassic Yanchang Formation in Southwestern Yishan Slope, Ordos Basin

<div>Cross plots of C<sub>29</sub> Steranes <i>ββ</i>/(<i>αα</i> + <i>ββ</i>) versus C<sub>29</sub> Steranes 20S/(20S + 20R) (a) and C<sub>29</sub> diasteranes 20S/(20S + 20R) versus C<sub>31</sub> Hopanes 22S/(22S + 22R) (b) of the crude oil and source rock samples in Southwestern of Yishan Slope.</div>

International Journal of Analytical Chemistry

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Figure 7

Figure 7: Geochemical Characteristics and Origins of the Crude Oil of Triassic Yanchang Formation in Southwestern Yishan Slope, Ordos Basin 