Sedimentary geology, tectonics and cartography

This course brings together three complementary and fundamental disciplines of the Earth Sciences: sedimentology, tectonics and cartography. The different types of sedimentary rocks will be taught in detail in order to interpret their formation context and associated processes. The ductile and brittle tectonic objects will also be discussed at different scales in order to establish their formation context, especially in terms of stress regime. Practical work on samples will be carried out in parallel to allow students to develop their sense of observation and drawing and to take advantage of the rich collections available in the department. Finally, an initiation to the reading and working on geological maps will be carried out (diagram, section), putting into application the notions of sedimentology and tectonics previously acquired. This course should enable students to define the main lines of the geological history of a given region.

Hourly volumes:

• CM : 12
• TD : 3
• TP: 21

• From the naturalistic observation of sedimentary rocks, it is a question of identifying with the naked eye its nature and the figurative elements (grains, fossils, structures) which it contains, to reconstitute the environment of formation of the rock and the processes of installation.
• Identify and characterize brittle and ductile tectonic processes at different scales (µm to km), describe and identify rocks and associated tectonic structures, in order to characterize a state of stress.
• Master the techniques of reading and using geological maps to understand the geological history of a study area.

UE HAT102T Geology ; HAV213T Earth evolution and geological history

Final exam + 3 graded practical exercises.

Synthetic description of the concepts covered in CM:

• 5 CM of Sedimentology;
• 1 CM Introduction to mapping techniques and geological map reading ;
• 2 CM Introduction to tectonics.

Synthetic description of the TD sessions and number of hours associated with each session

• 1TD of reading techniques and work on theoretical geological maps (recognition of unconformities, folds and faults; estimation of dips; work on small simple sections).  

Synthetic description of the practical sessions and number of hours associated with each session

• 4 Sedimentary Rocks PTs (PT1 Detrital and Terrigenous Rocks; PT2 Sedimentary Figures; PT3 Carbonate and Biochemical Rocks; PT4 Chemical and Organic Rocks);
• 2 practical exercises on geological maps in a simple folded domain: 1 for learning the structural diagram, 1 for learning the construction of a structural section (Dieulefit map);            
• 1 TP deformed rocks in room with macroscopic description of the rocks.

Description of the themes/manipulations addressed during your field trip(s) and details of the destinations/sites.

Know how to recognize a sedimentary rock and define its formation environment.

Know how to recognize a deformed, brittle and ductile rock, and define the state of stress at the origin of this deformation.

Know how to draw a sample.

Know how to read a geological map in order to extract the regional geological history.

Know how to make a structural diagram and a tectonic section from a geological map (calculation of dip and thickness, geological drawings...).