Centre Européen
de Recherche et d'Enseignement
des Géosciences de l'Environnement

LABORATORIES AND EQUIPMENT

- The Petrography and Petrophysics Laboratory (Heads: L. Marié and J. Borgomano) includes the lithosampling workshop, equipment for measuring porosity, permeability, P-wave velocity and resistivity, microscopes, a cathodoluminescence apparatus and a lithotheque. In addition to its support role, it participates in the development of new approaches in carbonate geology and rock physics, including in situ and borehole measurements. It is a critical technology platform for carbonate reservoir projects.

- The 3D-4D Geomodelling Laboratory (S. Viseur and J. Lamarche) contributes to the development of software (e.g. GOCAD, Dionysos) and provides with these tools, as well as with Move, Temisflow and Kingdom, geomodelling and geostatistical support to a wide range of projects. CEREGE and AMU belong to the "Paradigm University Research Program", which provides free Gocad-Skua licenses for teaching and free licenses for research.

- The Laboratory of Experimental Modelling & Acoustics (Head: G. Saracco) has a large tank (2x1.5x1.5 m) equipped with a digital oscilloscope, an LF, audible and HF transceiver chain (up to 2. 5 MHz), associated directional or omnidirectional acoustic transducers, a mechanical and electrical 4-axis positioning frame and a control bay with an RS232 link, all controlled by a microprocessor under a Labview interface for the study of easily reproducible propagative and/or diffusive phenomena (keeping the ratio: size of the heterogeneities (d), frequency of the source signal, constant (d/lambda =Cst). These acoustic tank studies allow the development and validation of experimental protocols and processing algorithms at the laboratory scale (easily reproducible and inexpensive) before moving on to the field scale and/or experimental tools (probe, etc.). The laboratory also has a hoist and three small tanks for carrying out transmission, propagation, diffusion or multi-diffusion experiments in complex media.

The laboratory recently acquired a 6 m-long tiltable hydraulic channel (DeltaLab), with variable flow rates (simple, periodic or random swell, for the study of sediment transport, currents, pollution, marine ecosystems, hydrothermal systems, etc.) equipped with a  swell generator, hydrophones, flowmeter, etc.

- The Hydro-Terrain Laboratory (Head: C. Vallet-Coulomb) brings together equipment and expertise for the acquisition of hydrological data, based on in situ and "post field" measurements, and on the collection of water samples for conventional and non-conventional geochemical analyses. Four counters for 222Rn measurements (3 Rad7 and 1 Alphaguard), four counters for Radium isotope measurements (RaDeCC), several CTD probes, multiparameters, titrators, a pore water sampling system, a lab spectrofluorometer, a field fluorometer, an automatic sampler, piezometer probes.

- The team's activities are also supported by the Stable Isotopes Laboratory.

- In addition, the stratigraphy work is partly based on the collections of the AMU Museum of Palaeontology (Head: B. Martin-Garin).