Direct push sensing in wetland (geo)archaeology: High-resolution reconstruction of buried canal structures ( Fossa Carolina , Germany)
J. Hausmann|Christoph Zielhofer|Lukas Werther|Stefanie Berg-Hobohm|Peter Dietrich|Robert Heymann|Ulrike Werban
(Geo)archaeological trenching techniques in floodplain and wetland environments are challenging due to the impact of groundwater inflow highly unstable trench edges. Alternatively, classical driving core often correspond with contraction organic layers bias height accuracies. Here, we present application direct push sensing for minimal-invasive (geo)archaeological surveys zones affected by a high table, especially when high-resolution parameterization buried structures is required. Two these applications electrical conductivity logging measurement colorimetric proxies unconsolidated sediments. The tools provide multi-proxy information about layer structure, texture, parameters. speed allows recording large data set vertical lateral resolution. In this study exemplary results canal structure within valley SW Germany. We cross-section from zone table. part Charlemagne's summit (Fossa Carolina), an Early Medieval hydro-engineering project bridging Central European Watershed. compare samples discuss prediction generation options parameter transfer multiple one-dimensional logs two-dimensional high-resolution. context, use situ-obtained as site characterization. model fills robust sediment data. Given cost time effectiveness such tools, high-depth accuracy was grown rapidly, compared less densely performed drillings that require additional effort laboratory analyses. Carolingian excavation depth 6 m below current surface. There evidence fills, which reveal aquatic semi-terrestrial stillwater deposition and, therefore, post-Carolingian ponds. have conceptual width deep-buried artificial water course at least 3–4 m. This passage cargo scows payload several tons central canal.
Quaternary International