Michel DABAS

Diplôme :
Date :
jeudi 06 décembre 2018 - 14:30

M. Michel DABAS présente ses travaux en soutenance en vue de l'obtention de l'Habilitation à diriger des recherches

  • ENS, 29 rue d'Ulm, 75005 Paris, salle 236

A Highly Digital Research
My first experiments about the use of geophysics for archaeological detection dates from 1978 when, as an ‘amateur’, I had a special interest in the emerging field of Mining Archaeology. I graduated from the School and Observatory of the Earth (EOPGS) in Strasbourg later in 1984, being trained mainly for oil exploration. From 1985 to 1989, I joined A. Hesse and A. Tabbagh team in Garchy and passed my PhD Thesis at Paris VI University (Magnetic Behavior of soils in the frequency and time-domain, Application to the survey of Archaeological sites). During this period, I developed both laboratory instruments for measurement of the magnetic properties of soil - following the pioneering work of Tite and Mullins and Scollar - and the first continuous electrical system for surveying archaeological sites: the RATEAU. During a stay at Bradford University (A. Aspinall Department), I was able to continue my research in time-domain measurements. When I entered CNRS in 1991, I continued working on towed electrical systems and expanded the prototype to a multi-depth system: the ARP© system positioned by GPS (1997). I extended my fields of research to air-borne thermal IR measurements (ARIES), GPR and Electrostatic systems. After Mining Archeology, I began exploring the field of Urban Archaeology (1993) and Garden Archaeology (2001). Since 1994, through cooperation with soil scientists in France and in Africa, I began introducing the techniques of geophysics and especially the electrical methods to Soil Science (INRA) with success. With the aim of introducing the geophysical methods within the French Rescue Archaeological community, I co-founded Terra NovA. Through this company, hundreds of archaeological sites were studied and the first experiments of introducing geophysics for large motorways projects was performed with success. In 2001, I setup a spin-off from CNRS: GEOCARTA SA in order to develop industrially the first ARP© system dedicated to an emerging field of research: Precision Farming (Precision Agriculture). I then developed new technologies always aimed at mapping very quickly large areas in Archaeology: EMP (Electromagnetic) and AMP (Magnetics) towed systems. In 2016, I returned to CNRS. In my habilitation project, the contribution of geophysics to the cartography of archaeological sites will be demonstrated. Firstly, a state of the art of the different technologies used in the field will be shown with a special focus on towed systems. I will try to highlight what could be the future of these technologies. From a selection of archaeological sites, I will show what are the advantages and disadvantages of using geophysical data in the process of today-heritage management. Finally I will show the interest of new technologies like web-based maps and the portal Chronocarto.eu developed at ENS- AoRoC.