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The Vembo Shales (Republic of the Congo): new insights on the transition from lacustrine to marine settings in the South Atlantic

Abstract : The Vembo Shales, originally defined in Gabon, are also recorded in Congo where they are recognized as the “terme argilo-carbonaté”[1]. This member of the Chéla Formation (Aptian), deposited just below the evaporites of the Loémé Formation, was recently identified in outcrops located 70 km to the NE of Pointe-Noire (Fig. 1) along the National Road 1 (RN1). These outcrops were not stratigraphically well-constrained due to the lack of fauna and were previously attributed [2] to undifferentiated Cretaceous (Fig.1) based on facies characteristics that are similar to succession exposed in outcrops in Gabon.
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Submitted on : Tuesday, January 31, 2017 - 2:38:50 PM
Last modification on : Friday, April 5, 2019 - 8:17:52 PM

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Vincent Delhaye-Prat, G. Dupont, N. Buratti, J.M. Moron, J. Esnault, et al.. The Vembo Shales (Republic of the Congo): new insights on the transition from lacustrine to marine settings in the South Atlantic. 35th International Geological Congress, Aug 2016, Le Cap, South Africa. Paper n°2850. ⟨insu-01450905⟩

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