• Level of study

    BAC +4

  • ECTS

    5 credits

  • Component

    Faculty of Science

Description

This module is an in-depth training in sedimentology that includes a lecture part and a practical part (field). After an overview of the mechanisms of sedimentary recording, hydrodynamic processes and associated sedimentary figures and structures, the different environments of terrigenous and carbonate detrital deposits are reviewed by scanning the sedimentary landscape from upstream to downstream.

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Objectives

Mastery of facies sedimentology with a good level of expertise in both clastic and carbonate. Know how to analyze facies successions at different scales and constrain sedimentary architectures and associated processes to be able to reconstruct depositional environments as accurately as possible and predict facies partitioning in an economic framework (reservoirs, covers, traps).

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Necessary pre-requisites

Sedimentary Geology and Tectonics (L2) and Sedimentary Rocks and Surface Transfer (L3) modules or equivalent.

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Knowledge control

Continuous assessment: includes 4 fieldwork notes corresponding to each of the four days of work. 1 written exam note.

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Syllabus

For each environment, the approach includes a geomorphological approach of the devices, the analysis of the associated depositional processes, the study of typical sequences and recognition criteria at different scales, the classifications of the different types of devices and finally their signature in seismic and logging. Each course is supported by the presentation of the most remarkable samples of the collections.
The practical work in the field follows the course as closely as possible. They are a real practical application of the notions introduced in the course. Four days (8:00 am - 6:00 pm) are planned for this purpose. These are not excursions but precise work on remarkable outcrops, chosen to illustrate the different depositional systems as much as possible, and for which a report is required:
(1) Lacustrine, proximal fluvial and eolian systems (Permian-Triassic of the Lodève Basin);
(2) Distal fluvial and mixed littoral systems (Rhaetian-Lias of the southern edge of Larzac);
(3) Storm ramp system and turbidite system (Ordovician-Visean of the southern slope of the Montagne Noire);
(4) Barred carbonate platform system (Upper Jurassic, Argelliers).

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