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Image number: 1874932

Dune Miquelon-Langlade Isthmus Saint-Pierre and Miquelon ; Langlade and Miquelon islands are connected by a sandy isthmus 12Km, farm since the late 18th century. Legend has long wanted him to be formed on the wrecks of many ships from running aground on the shoals wanting to pass between the two islets. Since 1816, more than 650 shipwrecks have been identified. With work on the isthmus by the CNRS past ten years, we now have evidence that its formation is the result of a natural phenomenon. However, the accumulation of wrecks could well have accelerated the process | The erosion due to rising sea levels and increased frequency and severity of storms, increasingly threaten the cord dune become a key channel of communication daily habitants.A Each year, the road must be redone, and revegetation, laying ganivelles, riprap gabions and other not seem to weigh very heavily against the threat of Ocean. View cord "buttereaux" sand dunes highly subject to erosion from wind and the sea in the northern part of the isthmus. Left the ocean, right the brackish lagoon of Grand Barachois.

© Thibaut Vergoz / Biosphoto

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Keywords

Landscape

Area / Brackish water / Lacuna

Earth's crust / Landform / Island

Earth's crust / Landform / Isthmus

Atmosphere / Seasons / Temperate season / Spring

Area / Marine area / Sea / Temperate sea

Environment / Biodiversity management / Environment management / Ecological engineering / Dune protection / Mechanical dune protection / Lattice fence

Area / Strand / Seaside / Coastal dune

Atmosphere / Meteorological phenomenon / Sky / blue sky

May

World sea and ocean / Atlantic Ocean / North Atlantic Ocean

Matter (substance) / Water (matter) / Water surface

Europe / European Union / France / French overseas collectivity / Saint Pierre and Miquelon archipelago

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