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Tombolo near Karystos, Euboea, Greece Tombolo contrasted with other coastal landforms.. A tombolo is a sandy or shingle isthmus.A tombolo, from the Italian tombolo, meaning 'pillow' or 'cushion', and sometimes translated incorrectly as ayre (an ayre is a shingle beach of any kind), is a deposition landform by which an island becomes attached to the mainland by a narrow piece of land such as a ...
However, this can lead to excessive salient build up, resulting in tombolo formation, which reduces longshore drift shoreward of the breakwaters. This trapping of sediment can cause adverse effects down-drift of the breakwaters, leading to beach sediment starvation and increased coastal erosion. This may then lead to further engineering ...
The sandy isthmus or tombolo "The Neck" connects North and South Bruny Island in Tasmania, Australia. An isthmus (/ ˈ ɪ s m ə s, ˈ ɪ s θ m ə s /; [1] pl.: isthmuses or isthmi) [2] is a narrow piece of land connecting two larger areas across an expanse of water by which they are otherwise separated. [3]
A smaller sediment protrusion can also be developed in the back side of the obstacle. The final phase of this process is the complete coalescence between these sediment features and the blockage of the water body located behind the obstacle, with the consequent formation of a connection between the obstacle and the mainland (i.e., the tombolo)...
Normally, tombolos are created due to the effects of the island on waves (through refraction) and to sediment transport, which usually produces a beach perpendicular to the mainland rather than parallel to it.
In geography and geology, fluvial sediment processes or fluvial sediment transport are associated with rivers and streams and the deposits and landforms created by sediments. It can result in the formation of ripples and dunes , in fractal -shaped patterns of erosion, in complex patterns of natural river systems, and in the development of ...
The concept of longshore drift or transportation of sediment parallel to the shore by wave action has evolved considerably with time. Early observations related to sediment displacement can be traced back to coastal communities, but the formal scientific understanding of this started crystallizing in the 19th and early 20th centuries.
The bar often is formed as a result of sediment deposited in the delta region of a river or – as is the case in Miquelon – by a tombolo. Name