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AAPG Bulletin
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AAPG Bulletin; Year: 2021; Issue: March DOI: 10.1306/08192019077
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Figure 12. (A) Measured vitrinite reflectance (VRo in %) values versus methylphenanthrene index values (MPI; 1.5 × (3MP+2MP)/(P+9MP+1MP), where P is phenanthrene and MP is methylphenanthrene). (B) Saturate/aromatic ratio (Sat/Arom) for oils and solvent extracts as a function of VRo calculated from MPI. Modified from Parris et al. (2019) with permission of Kentucky Geological Survey. R2 = coefficient of determination.
Figure 12. (A) Measured vitrinite reflectance (VRo in %) values versus methylphenanthrene index values (MPI; 1.5 × (3MP+2MP)/(P+9MP+1MP), where P is phenanthrene and MP is methylphenanthrene). (B) Saturate/aromatic ratio (Sat/Arom) for oils and solvent extracts as a function of VRo calculated from MPI. Modified from Parris et al. (2019) with permission of Kentucky Geological Survey. R2 = coefficient of determination.