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Late burial diagenetic traps are created by the following:
Late burial diagenetic traps are created by the following:
* Bottom seal generated below oil-water contacts by late cementation
* Bottom seal generated below oil-water contacts by [[Postaccumulation cementation|late cementation]]
* Primary [[porosity]] preserved due to selective cementation and/or early hydrocarbon emplacement
* Primary [[porosity]] preserved due to selective cementation and/or early hydrocarbon emplacement
* Secondary porosity created by cement and/or matrix dissolution
* Secondary porosity created by cement and/or matrix dissolution