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Diagenetic and Geochemical Study of Sediments from the Cretaceous basin of babouri-figuil (North-Cameroon)

International Journal of Geosciences 2021年第4期12卷 404-417页

作者： Augustin Désiré Balla Ondoa Alexis Nyangono Abolo Léopold Ekengele Nga Appolinaire Tograne Simon Ngos III Elvine Paternie Edjengte Doumo Armel Zacharie Ekoa Bessa Department of Earth Sciences Faculty of Science University of Ngaoundéré Ngaoundéré Cameroon Department of Mining Oil Gas and Water Resources Faculty of Mining and Petroleum Industries University of Maroua Kaélé Cameroon Department of Earth Sciences Faculty of Science University of Yaoundé I Yaoundé Cameroon

The purpose of this work is to characterize the sediments of the babouri-figuil basin from a diagenetic point of view, the protolith context and weathering conditions, using major element geochemistry and mineralogy o... 详细信息

The purpose of this work is to characterize the sediments of the babouri-figuil Basin from a diagenetic point of view, the protolith context and weathering conditions, using major element geochemistry and mineralogy of the sedimentary rocks. Microscopic observations of diagenetic phenomena (on and around detrital grains of the basin), and the study of precipitation of the cement show that these sediments have undergone phenomena of compaction, dissolution, recrystallization and cementation. Cementation of quartz by silica is controlled by the rate of precipitation of silica, which is closely related to temperature than pressure. Thus, the sediments of the basin could be influenced by hydrothermalism during diagenesis, which would have inhibited their reservoir quality by generalized cementation phenomena. Geochemical features of the sediments show high contents in SiO2 (47.49 wt% - 90.79 wt%), Al2O3 (2.92 wt% - 23.18 wt%

关键词： Diagenesis Geochemistry Cretaceous Sediments babouri-figuil basin Sedimentary basin

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