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The Gotland Basin is the large central basin in the 
The
Hille, Sven; Nausch, Gunther; and Leipe, Thomas (2005) "Sedimentary deposition and reflux of phosphorus (P) in the Eastern Gotland Basin and their coupling with P concentrations in the water column" ''Oceanologia'' 47(4): pp. 663–679
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Baltic Sea
The Baltic Sea is an arm of the Atlantic Ocean that is enclosed by Denmark, Estonia, Finland, Germany, Latvia, Lithuania, Poland, Russia, Sweden and the North and Central European Plain.
The sea stretches from 53°N to 66°N latitude and from ...
between Sweden
Sweden, formally the Kingdom of Sweden,The United Nations Group of Experts on Geographical Names states that the country's formal name is the Kingdom of SwedenUNGEGN World Geographical Names, Sweden./ref> is a Nordic country located on ...
and the Baltic countries
The Baltic states, et, Balti riigid or the Baltic countries is a geopolitical term, which currently is used to group three countries: Estonia, Latvia, and Lithuania. All three countries are members of NATO, the European Union, the Eurozone, ...
. It is subdivided into the Gdansk Deep (or Gdansk Basin), the Western Gotland Basin, and the Eastern Gotland Basin. Within the Eastern Gotland Basin is the Gotland Deep (249 metres deep) which is an anoxic basin. The Western Gotland Basin contains Landsort Deep
Landsort () is a Swedish village with a lighthouse on the island of Öja. The village has around 30 permanent residents.
The tower was built in 1689, with an upper conical iron section added in 1870. Open fires, serving as beacons, have been l ...
, which is the deepest spot of the Baltic sea (459 metres deep).
The sediment
Sediment is a naturally occurring material that is broken down by processes of weathering and erosion, and is subsequently transported by the action of wind, water, or ice or by the force of gravity acting on the particles. For example, sand an ...
s in the Gotland Basin are important for studying the climate change
In common usage, climate change describes global warming—the ongoing increase in global average temperature—and its effects on Earth's climate system. Climate change in a broader sense also includes previous long-term changes to E ...
s in northern Europe
Europe is a large peninsula conventionally considered a continent in its own right because of its great physical size and the weight of its history and traditions. Europe is also considered a Continent#Subcontinents, subcontinent of Eurasia ...
over the past 5,000 years.
Further reading
* Emeis, K.C.; Neumann, T.; Endler, R.; Struck, U.; Kunzendorf, H.; Christiansen, C. (1998) “Geochemical records of sediments in the Gotland Basin - products of sediment dynamics in a not so stagnant basin?” ''Applied Geochemistry'' 13, No. 3: 349-358 ;Hille, Sven; Nausch, Gunther; and Leipe, Thomas (2005) "Sedimentary deposition and reflux of phosphorus (P) in the Eastern Gotland Basin and their coupling with P concentrations in the water column" ''Oceanologia'' 47(4): pp. 663–679
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References
Baltic Sea Anoxic waters Sedimentary basins of Europe {{regional-geology-stub