Eogenesis does bring about some important mineralogical changes in siliciclastic sediments such as presipitation of new minerals.<ref name=Bogg /> In marine environment that reducing condition prevail, pyrite may form cement or replace other materials.<ref name=Bogg /> Other importants reaction include formation of chlorite and glauconite. In nonmarine environment, iron-oxides are commonly produced, forming redbeds.<ref name=Bogg /> | Eogenesis does bring about some important mineralogical changes in siliciclastic sediments such as presipitation of new minerals.<ref name=Bogg /> In marine environment that reducing condition prevail, pyrite may form cement or replace other materials.<ref name=Bogg /> Other importants reaction include formation of chlorite and glauconite. In nonmarine environment, iron-oxides are commonly produced, forming redbeds.<ref name=Bogg /> |