High-Resolution Direct Push Sensing in Wetland Geoarchaeology—First Traces of Off-Site Construction Activities at the Fossa Carolina

Wetland environments, with their excellent conservation conditions, provide geoarchaeological archives of past human activities. However, the subsurface soil is difficult to access due to high groundwater tables, unstable sediments, and the high cost of excavation. In this study, we present a ground...

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Autores principales: Johannes Rabiger-Völlmer, Johannes Schmidt, Ulrike Werban, Peter Dietrich, Lukas Werther, Stefanie Berg, Andreas Stele, Birgit Schneider, Hans von Suchodoletz, Susanne Lindauer, Sven Linzen, Ronny Stolz, Dennis Wilken, Peter Ettel, Christoph Zielhofer
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Publicado: MDPI AG 2021
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Acceso en línea:https://doaj.org/article/88f2a2e0e34f46f4b2114f94f849d746
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spelling oai:doaj.org-article:88f2a2e0e34f46f4b2114f94f849d7462021-11-25T18:55:06ZHigh-Resolution Direct Push Sensing in Wetland Geoarchaeology—First Traces of Off-Site Construction Activities at the Fossa Carolina10.3390/rs132246472072-4292https://doaj.org/article/88f2a2e0e34f46f4b2114f94f849d7462021-11-01T00:00:00Zhttps://www.mdpi.com/2072-4292/13/22/4647https://doaj.org/toc/2072-4292Wetland environments, with their excellent conservation conditions, provide geoarchaeological archives of past human activities. However, the subsurface soil is difficult to access due to high groundwater tables, unstable sediments, and the high cost of excavation. In this study, we present a ground-based non- and minimal-invasive prospection concept adapted to the conditions of wetlands. We investigated the Fossa Carolina in South Germany, a canal that was intended in 792/793 AD by Charlemagne to bridge the Central European Watershed. Although the resulting Carolingian banks and the fairway with wooden revetments are very imposing, archaeological traces of off-site construction activities have not been identified hitherto. Based on a geophysically surveyed intensive linear magnetic anomaly parallel to the Carolingian canal, we aimed to prove potential off-site traces of Carolingian construction activities. In this context, we built up a high-resolution cross-section using highly depth-accurate direct push sensing and ground-truthing. Our results showed the exact geometry of the canal and the former banks. Thus, the magnetic mass anomaly could be clearly located between the buried organic-rich topsoil and the Carolingian banks. The thermoluminescence dating showed that the position of the magnetic mass anomaly reflected Carolingian activities during the construction phases, specifically due to heat exposure. Moreover, we found hints of the groundwater supply to the 5-metre wide navigable fairway.Johannes Rabiger-VöllmerJohannes SchmidtUlrike WerbanPeter DietrichLukas WertherStefanie BergAndreas SteleBirgit SchneiderHans von SuchodoletzSusanne LindauerSven LinzenRonny StolzDennis WilkenPeter EttelChristoph ZielhoferMDPI AGarticleSQUID magnetic surveydirect push sensingmulti-method prospectionFossa Carolinaearly middle agesoff-site construction activitiesScienceQENRemote Sensing, Vol 13, Iss 4647, p 4647 (2021)
institution DOAJ
collection DOAJ
language EN
topic SQUID magnetic survey
direct push sensing
multi-method prospection
Fossa Carolina
early middle ages
off-site construction activities
Science
Q
spellingShingle SQUID magnetic survey
direct push sensing
multi-method prospection
Fossa Carolina
early middle ages
off-site construction activities
Science
Q
Johannes Rabiger-Völlmer
Johannes Schmidt
Ulrike Werban
Peter Dietrich
Lukas Werther
Stefanie Berg
Andreas Stele
Birgit Schneider
Hans von Suchodoletz
Susanne Lindauer
Sven Linzen
Ronny Stolz
Dennis Wilken
Peter Ettel
Christoph Zielhofer
High-Resolution Direct Push Sensing in Wetland Geoarchaeology—First Traces of Off-Site Construction Activities at the Fossa Carolina
description Wetland environments, with their excellent conservation conditions, provide geoarchaeological archives of past human activities. However, the subsurface soil is difficult to access due to high groundwater tables, unstable sediments, and the high cost of excavation. In this study, we present a ground-based non- and minimal-invasive prospection concept adapted to the conditions of wetlands. We investigated the Fossa Carolina in South Germany, a canal that was intended in 792/793 AD by Charlemagne to bridge the Central European Watershed. Although the resulting Carolingian banks and the fairway with wooden revetments are very imposing, archaeological traces of off-site construction activities have not been identified hitherto. Based on a geophysically surveyed intensive linear magnetic anomaly parallel to the Carolingian canal, we aimed to prove potential off-site traces of Carolingian construction activities. In this context, we built up a high-resolution cross-section using highly depth-accurate direct push sensing and ground-truthing. Our results showed the exact geometry of the canal and the former banks. Thus, the magnetic mass anomaly could be clearly located between the buried organic-rich topsoil and the Carolingian banks. The thermoluminescence dating showed that the position of the magnetic mass anomaly reflected Carolingian activities during the construction phases, specifically due to heat exposure. Moreover, we found hints of the groundwater supply to the 5-metre wide navigable fairway.
format article
author Johannes Rabiger-Völlmer
Johannes Schmidt
Ulrike Werban
Peter Dietrich
Lukas Werther
Stefanie Berg
Andreas Stele
Birgit Schneider
Hans von Suchodoletz
Susanne Lindauer
Sven Linzen
Ronny Stolz
Dennis Wilken
Peter Ettel
Christoph Zielhofer
author_facet Johannes Rabiger-Völlmer
Johannes Schmidt
Ulrike Werban
Peter Dietrich
Lukas Werther
Stefanie Berg
Andreas Stele
Birgit Schneider
Hans von Suchodoletz
Susanne Lindauer
Sven Linzen
Ronny Stolz
Dennis Wilken
Peter Ettel
Christoph Zielhofer
author_sort Johannes Rabiger-Völlmer
title High-Resolution Direct Push Sensing in Wetland Geoarchaeology—First Traces of Off-Site Construction Activities at the Fossa Carolina
title_short High-Resolution Direct Push Sensing in Wetland Geoarchaeology—First Traces of Off-Site Construction Activities at the Fossa Carolina
title_full High-Resolution Direct Push Sensing in Wetland Geoarchaeology—First Traces of Off-Site Construction Activities at the Fossa Carolina
title_fullStr High-Resolution Direct Push Sensing in Wetland Geoarchaeology—First Traces of Off-Site Construction Activities at the Fossa Carolina
title_full_unstemmed High-Resolution Direct Push Sensing in Wetland Geoarchaeology—First Traces of Off-Site Construction Activities at the Fossa Carolina
title_sort high-resolution direct push sensing in wetland geoarchaeology—first traces of off-site construction activities at the fossa carolina
publisher MDPI AG
publishDate 2021
url https://doaj.org/article/88f2a2e0e34f46f4b2114f94f849d746
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