Berkhli, M. and Vachard, D. and Tahiri, A. and Paicheler, J.-C. (1999) Uppermost Visean sequence stratigraphy of Jerada Basin (Eastern Morocco) Stratigraphie sequentielle du Viseen superieur du bassin de Jerada (Maroc Oriental). Eclogae Geologicae Helvetiae, 92 (3). pp. 285-294.

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Abstract

The Jerada basin shows excellent Upper Visean outcrops, where the shale-limestone sedimentation was periodically perturbated by volcanic events. Measured sections on the northern and southern flanks display several lithologic units. Applying the sequence stratigraphic concepts defined by Vail et al. (1977), five depositional sequences can be distinguished, limited by type I or II sequence boundaries. These third-order sequences have been dated by goniatites: Goniatites crenistria, G. striatus, G. granosus, G. subcircularis, and by foraminifera and algae: Endostaffella, 'Biseriammina', Rectoendothyra n.sp., Monotaxinoides n.sp., Principia vailhani. Each sequence corresponds more or less to one million years. A coastal aggradation curve deduced from these sequences consists of five 3rd-order cycles during the Late Visean. The paleobathymetric curve based on bathymetric markers, goniatites for deep water and foraminifera and algae for shallow water, also shows five cycles. The Jerada basin is a good example for the sequence-stratigraphic model in the Visean of Morocco.

Item Type: Article
Uncontrolled Keywords: biostratigraphy; Carboniferous; sequence stratigraphy; Visean, Morocco, algae; Carboniferous; Entovalva; Foraminifera
Subjects: Earth and Planetary Sciences
Divisions: SCIENTIFIC PRODUCTION > Earth and Planetary Sciences
Depositing User: Administrateur Eprints Administrateur Eprints
Last Modified: 31 Jan 2020 15:47
URI: http://eprints.umi.ac.ma/id/eprint/2986

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