− | The [[cross section]] of the Ellesmerian(!) petroleum system ([[:file:petroleum-systems_fig3-14.png|Figure 3]]) shows major structural-stratigraphic elements, the occurrence of oil fields, elevation of selected vitrinite reflectance values, and reflectance isograds. For the location, refer to [[:file:petroleum-systems_fig3-12.png|Figure 1]]. | + | The [[cross section]] of the Ellesmerian(!) petroleum system ([[:file:petroleum-systems_fig3-14.png|Figure 3]]) shows major structural-stratigraphic elements, the occurrence of oil fields, elevation of selected [[vitrinite reflectance]] values, and reflectance isograds. For the location, refer to [[:file:petroleum-systems_fig3-12.png|Figure 1]]. |