Sep 19, 2018 · Tidal sand ridges are large-scale rhythmic bedforms that are observed on the offshore parts of shelf seas where sand is abundantly available. Spacings between successive ridges are several kilometres, they evolve on centennial time scales, and their crests are cyclonically rotated with respect to the direction of the principal tidal currents.

Dec 10, 2020 · Tidal sand ridges are large-scale bottom features that occur on continental shelves with strong tidal currents and abundance of sand. These ridges have longshore spacings of several kilometres, heights of tens of metres, they evolve on centennial time scales and their crests are cyclonically rotated with respect to the direction of the dominant ...

Sep 4, 2022 · Tidal Ridge Knives and Leatherwork specializes in handmade knives, sheaths and various other types of leatherwork and tooling to include outdoor journals. 󱙶

Three categories of large linear sand ridges can be distinguished: tidal ridges, shoreface-connected ridges and long bed waves. We discuss the characteristics of these three types of ridges, their occurrence and the way in which they are formed and maintained. Figure 1: Tidal sand ridge fields in the North Sea.

May 1, 2022 · Describe the superposition and plane distribution of tidal sand ridges by seismic microfacies. Using an application example in the Xihu Depression to show the detailed analysis process. It is suitable for most sedimentary basins with tidal backgrounds and provides guidance for sandstone exploration.

Jul 15, 2007 · On the basis of bathymetric and seismic data and data from piston cores collected by the Chinese–French marine geology and geophysics investigation of 1996, we discuss the internal architecture and mobility of tidal sand ridges in the East China Sea (ECS).

Jan 11, 2023 · The radial tidal sand ridge (RTSR) off the Jiangsu Coast in the south Yellow Sea is one of the world’s unique geomorphic units. It is famous for its radial current pattern, which includes dozens of large either subaerial or subaqueous radial sand ridges and high suspended sediment concentrations (Figure 1A; Wang, 2002; Liu and Xia, 2004).

Dec 6, 2008 · A unique radial tidal sand ridge system (RTSRS) has developed under a complex tidal current field on the eastern China coast between the Yangtze River delta to the south and the abandoned Yellow River (Huanghe) delta to the north. The present study examines the sedimentary evolution of a ridge-channel pair in the central RTSRS.

Oct 1, 2019 · Tidal sand ridges are large-scale rhythmic bedforms that are observed on the offshore parts of shelf seas where sand is abundantly available.

Aug 21, 2021 · Dunes found migrating north-west through the swatchway are potential evidence of a current caused by tidal height differences across the ridge during ebb conditions. The study illustrates how repeated sonar measurements reveal the processes and timescales that lead to the deposition of stratigraphic units.