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In the eastern part of the saharan platform, the Cenomanian-Turonian marine deposits are lying conformably on the red detrital sediments of the so-called Infra-Cenomanian series. In the Hamada de Tinrhert (SE Algeria), the Cretaceous ledges are displaying over great distances a fine-detailed log of the upper Cenomanian-lower Turonian carbonates overlying the lower-middle Cenomanian red-and-greenish...
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