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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 ...
In the case of a cuspate foreland that has formed close to an island, it is possible for it to extend right up to the island, forming a tombolo. [1] Depending on the physical conditions such as storms, the feature can alternate between a cuspate foreland and a tombolo. [1] Gabo Island in South Australia is an example of where this occurs. [1]
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]
In the adjacent diagram, the two waves cancel each other out, creating a flat surface. However, this is a highly simplified version of events. The incoming wave has the same wave period as the edge wave, so the incoming wave changes from a peak to a trough over the same period as it takes the standing wave to change so they keep the same pattern.
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 ...
Los Morrillos de los Cabos Rojos (Spanish for "the little promontories of the red capes") or more commonly known as Los Morrillos de Cabo Rojo, is a cape and tombolo landform located in southwestern Puerto Rico in the municipality of Cabo Rojo. Los Morrillos is an excellent example of a tombolo, or a tied island, with two sand pits.
St Ninian's Isle is a small tied island connected by the largest tombolo in the UK [2] to the south-western coast of the Mainland, Shetland, in Scotland. It is part of the civil parish of Dunrossness on the South Mainland. The tombolo, known locally as an ayre [3] from the Old Norse for "gravel bank", [4] is 500 metres long. [5]
Presqu'ile is a tombolo on the north shore of Lake Ontario in Northumberland County. [1] When proglacial Lake Iroquois drained, leaving the lower Lake Ontario five limestone islands, the largest of which was Presqu'ile Island reduced the speed of currents carrying sand and silt, causing the dynamic sand spit to grow.