Prospection magnétique 3D à haute résolution

• Main Authors: François Lévêque, Vivien Mathé
• Format: Article
• Language: fra
• Published: Editions de la Maison des Sciences de l'Homme 2015-01-01
• Series: Les Nouvelles de l’Archéologie
• Subjects: magnetic survey; 3D; Hearths; caves; wrecks
• Online Access: http://journals.openedition.org/nda/2697

Magnetic survey realized with the simultaneous determination of the coordinates of the magnetic field measurement, with centimeter accuracy, at rates of 10 to 20 measurements per second, opens new horizon. It allow to realize a change of scale from the site to the objet. Few square meters can be covered at a sub-decimetric resolution. At this scale, a 3D information is required to discern changes in the local magnetic field produced by the relief of those resulting magnetization variations within the studied object. Complex environment such as cavities can be thus explored. Outdoors, the complexity of large heating structures or relics such as wrecks can also be revealed.