Jörg Lang
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View article: Does the structural inventory control tunnel-valley formation? – Insights from the North German Basin
Does the structural inventory control tunnel-valley formation? – Insights from the North German Basin Open
Tunnel valleys are impressive erosional landforms and may attain extreme depths of almost 600 m. Open and buried tunnel valleys have been mapped in many formerly glaciated sedimentary basins. Characteristics of tunnel valleys include …
View article: The impact of the structural framework of the North German Basin on Pleistocene tunnel‐valley formation
The impact of the structural framework of the North German Basin on Pleistocene tunnel‐valley formation Open
Tunnel valleys are impressive subglacial erosional landforms and may attain depths of almost 600 m. Climatic and glaciological factors exert the primary control on tunnel‐valley formation. Furthermore, regional geological features, e.g. fa…
View article: Assessing the impact of potential future glaciations on the long-term safety of radioactive waste repositories: relevant processes and examples from current studies
Assessing the impact of potential future glaciations on the long-term safety of radioactive waste repositories: relevant processes and examples from current studies Open
The safety of repositories for high-level radioactive waste has to be assessed for very long time periods (e.g., 1 Ma by German regulations), which implies that the impact of potential future cold stages and glaciations on the geological b…
View article: Integrated 3D Seismic Analysis of Pleistocene Tunnel Valleys and their infills in the German North Sea sector 
Integrated 3D Seismic Analysis of Pleistocene Tunnel Valleys and their infills in the German North Sea sector  Open
Our research project is dedicated to the development of a comprehensive model for analysing the distribution, dimensions, and evolution of Pleistocene tunnel valleys and their deposits in northern Germany and adjacent areas. The primary ob…
View article: Comment on egusphere-2023-2104
Comment on egusphere-2023-2104 Open
Abstract. Salt structures and their surroundings can play an important role in the energy transition related to a number of storage and energy applications. Thus, it is important to assess the current and future stability of salt bodies in…
View article: The past is the key to the future – considering Pleistocene subglacial erosion for the minimum depth of a radioactive waste repository
The past is the key to the future – considering Pleistocene subglacial erosion for the minimum depth of a radioactive waste repository Open
Erosion during potential future glaciations, especially the incision of deep tunnel valleys, is a major challenge for the long-term safety of a radioactive waste repository. Tunnel valleys are a common feature of formerly glaciated sedimen…
View article: Deformation of salt structures by ice-sheet loading: insights into the controlling parameters from numerical modelling
Deformation of salt structures by ice-sheet loading: insights into the controlling parameters from numerical modelling Open
Subsurface salt flow is driven by differential loading, which is typically caused by tectonics or sedimentation. During glaciations, the weight of an ice sheet represents another source of differential loading. In salt-bearing basins affec…
View article: Depositional architecture and aggradation rates of sand-rich, supercritical alluvial fans: Control by autogenic processes or high-frequency climatic oscillations?
Depositional architecture and aggradation rates of sand-rich, supercritical alluvial fans: Control by autogenic processes or high-frequency climatic oscillations? Open
Alluvial fans are important paleoclimatic archives, that may record high-frequency climatic oscillations. However, climate signals may be overprinted or even be destroyed by autogenic processes caused by channel avulsion and lobe switching…
View article: Ice-load induced salt movement – insights into the controlling parameters from numerical modelling
Ice-load induced salt movement – insights into the controlling parameters from numerical modelling Open
<p>Subsurface salt movement is primarily driven by differential loading, which is typically caused by tectonics or sedimentation. During glacial periods, the weight of an ice sheet may represent another source of differential loading…
View article: Three‐dimensional submerged wall jets and their transition to density flows: Morphodynamics and implications for the depositional record
Three‐dimensional submerged wall jets and their transition to density flows: Morphodynamics and implications for the depositional record Open
Jets that expand from an orifice into an ambient water body represent a basic flow model for depositional environments related to expanding flows. Momentum‐dominated jets evolve into gravity‐dominated density flows. To understand this tran…
View article: Sedimentary structure of inferred cyclic‐step bedforms in submarine volcaniclastic slope deposits, Cuatro Calas, south‐east Spain
Sedimentary structure of inferred cyclic‐step bedforms in submarine volcaniclastic slope deposits, Cuatro Calas, south‐east Spain Open
Cyclic steps are widespread on submarine slopes of many modern insular volcanoes. This paper provides the first detailed description and interpretation of the sedimentary structures and depositional architecture of cyclic‐step deposits of …
View article: Magnetic resonance tomography constrained by ground-penetrating radar for improved hydrogeophysical characterization
Magnetic resonance tomography constrained by ground-penetrating radar for improved hydrogeophysical characterization Open
Geophysical methods can characterize aquifer systems noninvasively and are particularly helpful to image the complex depositional architecture of the subsurface. Among these, ground-penetrating radar (GPR) is an effective tool for detailed…
View article: Bedforms and sedimentary structures related to supercritical flows in glacigenic settings
Bedforms and sedimentary structures related to supercritical flows in glacigenic settings Open
Upper‐flow‐regime bedforms, including upper‐stage‐plane beds, antidunes, chutes‐and‐pools and cyclic steps, are ubiquitous in glacigenic depositional environments characterized by abundant meltwater discharge and sediment supply. In this s…
View article: Reconstruction of bedform dynamics controlled by supercritical flow in the channel–lobe transition zone of a deep‐water delta (Sant Llorenç del Munt, north‐east Spain, Eocene)
Reconstruction of bedform dynamics controlled by supercritical flow in the channel–lobe transition zone of a deep‐water delta (Sant Llorenç del Munt, north‐east Spain, Eocene) Open
Stable supercritical‐flow bedform phases under two‐dimensional steady flow are geometrically simple and include long‐wavelength cyclic steps at high Froude numbers and antidunes characterized by in‐phase flow that is near critical. Less we…
View article: Role of Upper-Flow-Regime Bedforms Emplaced by Sediment Gravity Flows in the Evolution of Deltas
Role of Upper-Flow-Regime Bedforms Emplaced by Sediment Gravity Flows in the Evolution of Deltas Open
Upper-flow-regime bedforms and their role in the evolution of marine and lacustrine deltas are not well understood. Wave-like undulations on delta foresets are by far the most commonly reported bedforms on deltas and it will take time befo…
View article: Ice‐marginal forced regressive deltas in glacial lake basins: geomorphology, facies variability and large‐scale depositional architecture
Ice‐marginal forced regressive deltas in glacial lake basins: geomorphology, facies variability and large‐scale depositional architecture Open
This study presents a synthesis of the geomorphology, facies variability and depositional architecture of ice‐marginal deltas affected by rapid lake‐level change. The integration of digital elevation models, outcrop, borehole, ground‐penet…