Geodynamics and Geomaterials

This teaching unit presents the fundamentals of structural geology at a master level. It focuses on the analysis of the different objects and mechanisms of deformation of the earth's crust from the surface to the base of the crust. Deformation is presented from field examples, samples, thin sections and experiments. These observations are compared with theory and analog, analytical and numerical modeling.
Major points covered:
(1) analysis of deformation at all scales, and associated tectonic regimes
(2) typology and kinematics of structural objects (e.g. faults, fractures, folds, etc.) faults, fractures, folds, shear zones),
(3) balanced structural cross-section,
(4) link between different scales and depths of deformation,
(5) different rheological and structural contexts (brittle and ductile structural levels, compressive and extensive regimes, homogeneous and stratified environments),
(6) presence of fluids and their role in deformation.

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This module aims to provide the basics of geophysical imaging of geological formations, both near-surface and lithospheric. We will focus on seismic methods (volume and surface wave tomography, receiver functions, ambient noise), gravimetry and magnetotellurics. We will also present the basics of seismic reflection (acquisition and processing). A case study seen during the lab will highlight the importance of combining these methods to best describe the environment and its properties, particularly in terms of fluids.

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This field training course comes at the beginning of the cycle of our Master's degree. It aims at characterizing the succession of the formation and dismantling processes of the Variscan orogen, through the thematic study of the Montagne Noire massif. Particular attention will be paid to (1) the study of the deformation of the sedimentary cover and the geodynamic evolution of the basins; (2) the analysis of the ductile deformation and the associated metamorphism in the deepest crustal levels; and (3) the study of the late-orogenic basins This teaching unit consists of three successive stages: the preparation phase based on the study of cartographic documents in the classroom, field work and the writing of a report, and finally a critical study of the bibliography.

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This course aims at homogenizing the knowledge of students coming from various backgrounds. The training targets in particular knowledge in mineralogy, magmatic petrology and associated metallic deposits. These disciplines are approached with a synthetic and global approach, integrating the processes and making the link between the main mineralogical and geochemical reservoirs. The courses are supported by practical work in magmatic petrology and metallogeny through the study of rock and mineralized samples, both macroscopic and microscopic.

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This course presents the mechanical behavior of rocks based on the results of laboratory-scale work. The different types of laboratory experiments are described and the various mechanical behaviors are discussed and illustrated with experimental data. Hydrostatic compression, uniaxial and triaxial compression tests are described. Elastic, plastic and viscous behaviors are considered and the combination of these behaviors is applied to the description of the behavior of rocks.
Notions related to the behavior of discontinuities, as well as fracture mechanics are discussed. The notions of creep and deferred behavior will also be addressed to consider the long-term behavior of rock masses.
In order to consider the mechanical behavior in a quantitative way, the notions of stress and strain tensor will be addressed. They will allow the introduction of elastic deformation calculations based on elastic moduli. The calculation of stresses on planes, from the knowledge of the stress tensor, will be discussed in the general case and will be illustrated by the Mohr representation.

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Contribution of geochemistry, geo-thermochronology and petrology in the knowledge of:
- the major stages of formation, deformation and evolution of sedimentary basins and their bedrock
- the formation, origin, age and evolution of metal deposits

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This teaching is divided into two parts, one part concerning surface and atmospheric waters, the other part concerning groundwater. This UE is in continuity with the UE Water cycle of S1, and allows to lay the essential bases for the specific teachings of hydrodynamics and physical hydrology which will take place in S2. It is thus a transitional course between fundamental knowledge on the water cycle and specific knowledge on the study and characterization of surface and groundwater resources.

Theoretical courses associated with integrated tutorials are complemented by practical work on computers and hydrogeological maps.

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The "Ocean, Atmosphere, Climate" module focuses on presenting the fundamental principles of atmospheric dynamics, ocean dynamics and provides a critical and documented look at climate change. The teaching is based on the analysis of official documents describing global change, documented lessons on key issues and applications on case studies in different global contexts.

The module is shared by the "Coastal engineering and rational development of the coastline" and "Water and coastline" courses of the STPE and Water masters. It can be taken by work-study students wishing to update their knowledge of global change and its relationship to weather and atmospheric processes.

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The course is organized in 3 main chapters with alternating tutorials applied to engineering problems. In the first part, after describing the large water reservoirs on a global scale and the basic principles of the water cycle, the effects of human activities on this cycle are discussed. The second part is dedicated to the aerial part of this cycle from precipitation to infiltration. The third part focuses on aquifers and groundwater from the pore scale to the catchment scale.

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The "Ocean, Atmosphere, Climate" module focuses on presenting the fundamental principles of atmospheric dynamics, ocean dynamics and provides a critical and documented look at climate change. The teaching is based on the analysis of official documents describing global change, documented lessons on key issues and applications on case studies in different global contexts.

The module is shared by the "Coastal engineering and rational development of the coastline" and "Water and coastline" courses of the STPE and Water masters. It can be taken by work-study students wishing to update their knowledge of global change and its relationship to weather and atmospheric processes.

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