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AAPG Bulletin
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AAPG Bulletin; Year: 2021; Issue: March DOI: 10.1306/08192019076
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Figure 13. (A) Plot of C29 ββ/(ββ+αα) sterane isomerization ratio versus C27 trisnorhopane epimer ratio (Ts/Ts+Tm) from the solvent extracts of this study. (B) Plot of C27 diasterane/ααα sterane versus C27 trisnorhopane epimer ratio (Ts/Ts+Tm) from the solvent extracts of this study. R2 = coefficient of determination; Ts/(Ts+Tm) is 18α, 21β-22,29,30-trisnorneohopane/Ts + 17α, 21β-22,29,30-trisnorhopane.
Figure 13. (A) Plot of C29 ββ/(ββ+αα) sterane isomerization ratio versus C27 trisnorhopane epimer ratio (Ts/Ts+Tm) from the solvent extracts of this study. (B) Plot of C27 diasterane/ααα sterane versus C27 trisnorhopane epimer ratio (Ts/Ts+Tm) from the solvent extracts of this study. R2 = coefficient of determination; Ts/(Ts+Tm) is 18α, 21β-22,29,30-trisnorneohopane/Ts + 17α, 21β-22,29,30-trisnorhopane.