Deal with steel: investigating the wreck of the heavy cruiser Admiral Scheer

Wilken, Dennis; Jürgens, Fritz; Erkul, Ercan; Rabbel, Wolfgang; Müller, Ulrich

doi:10.38072/978-3-928794-83-1/p12

Advances in on- And Offshore Archaeological Prospection 2023

DOI: 10.38072/978-3-928794-83-1/p12

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Deal with steel: investigating the wreck of the heavy cruiser Admiral Scheer

Dennis Wilken¹,

Fritz Jürgens²,

Ercan Erkul³

et al.

Abstract: In this paper, we present, for the first time, a world war two warship imaged underground, in a silted up harbor. Only reflection seismic measurements and electrical resistivity tomography allowed prospecting of the target at challenging depths from 4 m to 12 m below surface.

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2024

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Combining Photogrammetry and Subsurface Geophysics to Improve Historical Knowledge of Romanesque Churches in Normandy, France: Case Study of the Notre‐Dame‐du‐Val Chapel

Fauchard,

Aillaud,

Legrand

et al. 2024

Archaeological Prospection

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This study presents the results of aerial and geophysical measurements carried out on the Notre‐Dame‐du‐Val chapel in Sotteville‐sur‐Mer (Normandy, France), a former leprosarium dating from the 15th century; the chapel is now deconsecrated and has been showing signs of ageing in recent years. Restoration work is planned, and geophysical investigations of the area around the chapel have been commissioned. In this article, we propose a robust methodology combining aerial and terrestrial measurements in the visible range with surface prospecting methods. Compiling all the measurements within a perfectly georeferenced 3D model allows the joint analysis of the results of different physical measurement methods to provide unexpected architectural and archaeological information. Photos were taken from the ground and using a drone to build photogrammetric models of the interior and exterior of the chapel. Ground‐penetrating radar (GPR) and electrical resistivity tomography (ERT) were the two survey methods deployed in the area surrounding the chapel. The geophysical measurements clearly reveal traces of apses—which have now disappeared—at the crossing of what would have been the building's transept, which match up with the filled‐in openings that are present. The existence of these apses can only be assumed from inside the chapel. The resistivity anomalies are perfectly correlated with the radar anomalies and allow new hypotheses to be formulated about the original structure of the chapel. Finally, mapping the local geology of the surroundings based on a geophysical survey provides crucial information about the history of the church's construction. Bringing this unknown architectural element to light and carrying out precise mapping of the local geology surrounding the chapel constitute a major breakthrough, as this will make it possible to improve our knowledge of the history of the chapel, in particular its origins, through research based on archaeological surveys.

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Combining Photogrammetry and Subsurface Geophysics to Improve Historical Knowledge of Romanesque Churches in Normandy, France: Case Study of the Notre‐Dame‐du‐Val Chapel

Fauchard,

Aillaud,

Legrand

et al. 2024

Archaeological Prospection

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show abstract

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Deal with steel: investigating the wreck of the heavy cruiser Admiral Scheer

Abstract: In this paper, we present, for the first time, a world war two warship imaged underground, in a silted up harbor. Only reflection seismic measurements and electrical resistivity tomography allowed prospecting of the target at challenging depths from 4 m to 12 m below surface.

Cited by 1 publication

References 4 publications

Combining Photogrammetry and Subsurface Geophysics to Improve Historical Knowledge of Romanesque Churches in Normandy, France: Case Study of the Notre‐Dame‐du‐Val Chapel

Combining Photogrammetry and Subsurface Geophysics to Improve Historical Knowledge of Romanesque Churches in Normandy, France: Case Study of the Notre‐Dame‐du‐Val Chapel

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