Deformation of a modern alluvial plain |
| |
Authors: | AJ van Loon |
| |
Institution: | aFaculty of Earth Sciences, University of Silesia, Bedzinska 60, 41-200 Sosnowiec, Poland |
| |
Abstract: | The alluvial plain of the Waal River (The Netherlands), over 4000 m2, showed large flow-lobe like structures after it had fallen dry following floodings. The upstream-directed parabola-shaped folds had mutual distances from < 1 m to about 10 m and amplitudes of up to a few decimeters. The deformation is ascribed to a rare coincidence of hydrological, topographic, and weather conditions. Local high-energy currents developed opposite to the main river current direction, dragging the top layer along over several meters. A drilled section indicates that no true detachment plane but rather a detachment zone is present. Similar structures formed under comparable conditions have not been described previously in the literature. |
| |
Keywords: | Soft-sediment deformation Dragging Alluvial plain Waal River The Netherlands |
本文献已被 ScienceDirect 等数据库收录! |
|