Changes

==Sterane proportions==

==Sterane proportions==

[[file:oiloil-and-oilsource-rock-correlations_fig8-39.png|300px|thumb|{{figure number|4}}Relative proportions of C₂₇ – C₂₉ regular steranes in numerous oils from the two families (A and B). From Grantham<ref name=ch08r15 />); reprinted with permission from Elsevier.]]

[[file:oiloil-and-oilsource-rock-correlations_fig8-39.png|300px|thumb|{{figure number|4}}Relative proportions of C₂₇ – C₂₉ regular steranes in numerous oils from the two families (A and B). From Grantham<ref name=ch08r15 />; reprinted with permission from Elsevier.]]

The ternary diagram in [[:file:oiloil-and-oilsource-rock-correlations_fig8-39.png|Figure 4]] shows relative proportions of C₂₇ – C₂₉ regular steranes in numerous oils from the two families (A and B). The many oil samples analyzed are very consistent, showing clearly that two distinct families exist. Unfortunately, most correlation problems do not have such clean and neat solutions.

The ternary diagram in [[:file:oiloil-and-oilsource-rock-correlations_fig8-39.png|Figure 4]] shows relative proportions of C₂₇ – C₂₉ regular steranes in numerous oils from the two families (A and B). The many oil samples analyzed are very consistent, showing clearly that two distinct families exist. Unfortunately, most correlation problems do not have such clean and neat solutions.