Tellus environment - Cartographier l'invisible pour agir

Published in Archaeology
  • Client Musee d’archéologie nationale de St Germain en Laye
  • Domaine Archéologie
  • Moyens utilisés Magnétomètre héliporté

The helicoptered magnetic survey has highlighted the zones with major accumulation of Briquetage waste, thus evidencing there was no other accumulation zone in the Seille Valley than the ones in the villages of Vic-sur-Seille, Marsal and, above all, Moyenvic.

Published in Archaeology
  • Client SRA de Picardie
  • Domaine Archéologie
  • Moyens utilisés LIDAR aéroporté

Applied to the Lidar technology, the Magsalia process allows an in-depth study of a site, without even degrading the surface.

Published in Archaeology
  • Client INRAP/EIFFAGE
  • Domaine Archéologie préventive
  • Moyens utilisés Drone et magnétomètre

Project description:

Within the scope of the construction of the high-speed railway line in Western France, the French National institute for Rescue archaeology (INRAP) has entrusted to Tellus Environment geophysical prospecting with a drone and the interpretation of the maps produced with the Magsalia process.

Published in Archaeology
  • Client SRA de Picardie
  • Domaine Archéologie
  • Moyens utilisés le lidar & le traitement Magsalia

Contexte

Forests have a strong archaeological potential, in particular because of remains good preservation in form of micro reliefs, but the forest cover hinders prospecting operations and site study. Airborne scanning, or Lidar, is a recent method of remote sensing which overrides a part of the physical constraints and allows detection and mapping of remains.

In 2011, the Archaeological service of the Picardie region aims at providing new archaeological data in its own database, called Patriache. The data should come from a 50 km2 surface in the Compiègne woods and should be collected with the Lidar technology.

Published in Archaeology
  • Client INRAP
  • Domaine Archéologie
  • Moyens utilisés GEOMETRICS G882 - Klein 3900

Contexte

A French overseas island is undergoing profound change, in particular through major infrastructure work. The French National institute for Rescue archaeology (INRAP) is in charge of preventive archaeological diagnosis. The Géomines company has carried out an underwater exploration of the coastline, with a sonar and magnetometer for detecting and locating magnetic anomalies. At the end of the survey, a huge number of magnetic targets (about 4,700 targets) has been found, thus preventing any underwater on-site intervention by the divers.

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