Paleoductility analysis demonstrates that the top seals in these structures were extremely ductile prior to 100 Ma and would not have fractured within the range of strains developed. Since 100 Ma, these same seals were sufficiently compacted so that fracturing could have occurred if the strain exceeded the ductility of the top seal. The only strain that contributes to seal risk is the strain that occurred after 100 Ma.
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Paleoductility analysis demonstrates that the top seals in these structures were extremely [[Ductility|ductile]] prior to 100 Ma and would not have fractured within the range of strains developed. Since 100 Ma, these same seals were sufficiently compacted so that fracturing could have occurred if the strain exceeded the ductility of the top seal. The only strain that contributes to seal risk is the strain that occurred after 100 Ma.