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The Gotland Deep (), is a marine depression in the
Baltic Sea The Baltic Sea is an arm of the Atlantic Ocean that is enclosed by the countries of Denmark, Estonia, Finland, Germany, Latvia, Lithuania, Poland, Russia, Sweden, and the North European Plain, North and Central European Plain regions. It is the ...
and, at 248m below sea level, is its fourth lowest point, after the
Landsort Deep The Landsort Deep is a marine abyss located in the Baltic Sea and, at deep, constitutes its deepest point.Ă…land Deep (channel of the Ă…land Sea) and Ulvo Deep (
Bothnian Sea The Bothnian Sea (; ) links the Bothnian Bay (also called the Bay of Bothnia) with the Baltic Sea, Baltic proper. Kvarken is situated between the two. Together, the Bothnian Sea and Bay make up a larger geographical entity, the Gulf of Bothnia, ...
). It is noted for having a periodically anoxic environment. It is located between the Swedish island of
Gotland Gotland (; ; ''Gutland'' in Gutnish), also historically spelled Gottland or Gothland (), is Sweden's largest island. It is also a Provinces of Sweden, province/Counties of Sweden, county (Swedish län), Municipalities of Sweden, municipality, a ...
and the Latvian west coast and marks the deepest point of the East Gotland Basin. Cores from the Gotland Deep have provided insights into the climate and geologic history of the Baltic during the
Holocene The Holocene () is the current geologic time scale, geological epoch, beginning approximately 11,700 years ago. It follows the Last Glacial Period, which concluded with the Holocene glacial retreat. The Holocene and the preceding Pleistocene to ...
.


See also

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Depression (geology) In geology, a depression is a landform sunken or depressed below the surrounding area. Depressions form by various mechanisms. Types Erosion-related: * Blowout (geomorphology), Blowout: a depression created by Aeolian processes, wind erosion t ...
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Mariana Trench The Mariana Trench is an oceanic trench located in the western Pacific Ocean, about east of the Mariana Islands; it is the deep sea, deepest oceanic trench on Earth. It is crescent-shaped and measures about in length and in width. The maxi ...
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Landsort Deep The Landsort Deep is a marine abyss located in the Baltic Sea and, at deep, constitutes its deepest point.Baltic Sea Oceanic trenches Depressions (geology) Geography of Sweden Gotland {{ocean-stub