Geology & sedimentology

Technicien supérieur Géologue Propecteur

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Geophysical engineer

Nabil

Sur la page "20 métiers à travers 20 portraits"

Researcher in sedimentology

Axel is a researcher in sedimentology at the Laboratory of  Sedimentary Environments.

What does your job involve ?

I develop and take part in research projects within the Marine Geoscience Unit. It very often consists in replying to calls for tender in collaboration with colleagues from other institutes and sometimes working in different fields of specialization. My job consists in exploring the coastal seabed and more largely the continental shelf to collect sedimentary and geophysical data.

On my return to the lab, I analyse and interpret these data with the technical support of other teams of the department. I also follow-up the work of students on work placements. The results of our work and then promoted in the form of academic and general public publications.

My main research themes are :

- the study of recent sedimentation and sedimentary bodies on silico-clastic and carbonate platforms (English Channel, Bay of Biscay and French overseas territories...) in order to understand the dynamics of the settlement of these deposits in relation to current hydrodynamism, sedimentary sources and anthropic impact.

- the architecture of sedimentary stocks on a much larger scale (quarternary) on the platform in relation to the variations in sea level and the transfers to deep sea basins.

What training did you have ?

I trained as a geologist at the University of Caen, then in Lille and Paris (Master 2 in geology and sedimentary geochemistry).

PhD student

Elda’s doctoral thesis subject focuses on study of submarine landslides in the North Tyrrhenian Sea and relationships with contourite and turbidite deposits. It was started in October 2013, and is part of the Pamela research programme, associating Total, Ifremer, CNRS and several universities.

How and why did you secure a thesis at Ifremer?

I studied marine sciences with a major in marine geology in Spain, at the University of Vigo. During my Master 2 degree, my co-supervisor at CSIC in Barcelona brought Ifremer’s PhD thesis offers to my knowledge. It was the institute’s renown and the interest of the proposed subject in marine geology that motivated me to apply, all the more so because I had already studied contourite deposits.

What do you like best in your thesis subject?

My PhD topic requires several approaches, because the study focuses on different geological fields (geotechnics, sedimentology and seismics) and also includes modelling. My work is varied, and that is something I like a lot. It also enables me to acquire new knowledge in geotechnics and modelling. What’s more, I find it interesting to be in regular contact with Total and thus understand the point of view of those working in industry.

You are going to spend one month abroad. What is the objective here?

Indeed, I have a grant from the European University of Brittany to spend one month at Ismar-CNR in Bologna. I’m going to recover and interpret additional seismic data located in the Pianosa Ridge zone, which will make it possible to improve the characterisation of the contourite system studied, run granulometry analyses and benefit from this institute’s expertise in marine mollusc paleontology. It is an opportunity to develop collaborative work on contourite aspects, and perhaps for me to envisage a post-doc fellowship there.

What are your plans for 2015?

The coming year will be devoted to finalising the geotechnical analyses and to writing two scientific articles taken from the international conferences I took part in (2nd Deep-Water Circulation Congress, 10-12 September 2014, Ghent, Belgium and the 7th International Symposium on Submarine Mass Movements and Their Consequences, which will be held from 1-4 November 2015 in Wellington, New Zealand).

What points could be improved?

The publication and dissemination of the theses proposed. If my Master2 co-supervisor hadn’t mentioned Ifremer’s call for doctoral applications to me, I would not have known about it.