Prospections géophysiques aux Grandes Portes, a la Terrasse et a la Chaume

Title in English Geophysical Prospection on Grandes Portes, la Terrasse and la Chaume
Authors

MILO Peter

Year of publication 2020
Type Article in Proceedings
Conference Rapport annuel 2019 du programme quadriennal de recherche 2017-2020 sur le Mont Beuvray : Synthése
MU Faculty or unit

Faculty of Arts

Citation
Web https://halshs.archives-ouvertes.fr/halshs-02512035/document
Keywords geophysical survey; magnetic anomalies; GPR
Description Annual report on archaeogeophysical prospection on oppidum Bibracte/Mont Beuvray (on Grandes Portes, la Terrasse and la Chaume). The geophysical surveys carried out at Grandes Portes showed only sporadic traces of occupation and revealed very little of the first rampart and its gate. At the Terrace, magnetic surveys did not allowed to detect potential archaeological structures due to the strong magnetism of the subsurface rock. Some ditches were spotted by ground penetrating radar as well as a few buildings were visible only partially on the terraces of the southern slope. At La Chaume, finally, ground penetrating radar enabled highlight the ditch spotted in 2012, which seems disturbed by the presence of masonry located at proximity. Geophysics, which clearly presents greater potential in this part of the site, should be continued in the future, especially with ground penetrating radar.
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