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* Bottom seal generated below oil-water contacts by [[Postaccumulation cementation|late cementation]]
* Bottom seal generated below oil-water contacts by [[Postaccumulation cementation|late cementation]]
* Primary [[porosity]] preserved due to selective [[Reservoir quality#Cementation|cementation]] and/or early hydrocarbon emplacement
* Primary [[porosity]] preserved due to selective [[Reservoir quality#Cementation|cementation]] and/or early hydrocarbon emplacement
* Secondary porosity created by cement and/or matrix dissolution
* [[Secondary porosity]] created by cement and/or matrix dissolution
[[:file:exploring-for-stratigraphic-traps_fig21-40.png|Figure 1]] shows cross sections of diagenetic trap types.
[[:file:exploring-for-stratigraphic-traps_fig21-40.png|Figure 1]] shows cross sections of diagenetic trap types.