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PEROPROASAA AFIKPO东南区,NGERIA

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剖面分析取自尼日利亚南部BenuefroughAfikpo地区Amenu-Amauro环境The study area lies between longitudes 7o 5055'N and 6o00'Ns and located within the Abakaliki anticlinorium of the south Benue trough.The infilled sediments of the trough had undergone deformation and affected by the magmatic activities during cenomanian and santonian episodes..Petrographic analysis indicated the presence of metasediments including Met greywacke arkoses sandstone with prolific globular exsolved texture poorly sorted lithnic arenite with elongale grains some showing reaction rums.Buchile of limestone with crystallized shell, sandstone and slate or high indurated shale with section showing globular, plank tonic foraminifera tests.The textures are partly relict indicating retention of original pre-metamorphic sedimentary features which have not been obliterated by metamorphism, hence, they are typomorphic

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