Döhlen Basin

The Doehlen Basin is a landscape unit in Saxony southwest of Dresden.

Geography

The Doehlen basin extends for a length of 22 km and a width of 6 km above the county Saxon Switzerland & Eastern Ore Mountains. In the center of the basin is the major district town Freital; the naming of the basin goes back on the Freitaler district Döhlen. The highest point of the area is 425 m above sea level. NN of Lerchenberg at Poss village; the lowest point at 160 m above sea level. NN is located in the valley of the White Ritz. The northwestern boundary of the basin Doehlen is the area around the city Wilsdruff, in the southeast it reaches up to Maxen (municipality Müglitztal ). Approximately along the Dresden city border is the transition to the " Elbe basin", in Karsdorf (city Rabenau ) is the Doehlen basin above the Eastern Ore Mountains.

At the local administrative level, the landscape extends over large parts of the cities and Freital Rabenau as well as the communities Bannewitz and Kreischa. Tangent is also the area of Tharandt Wilsdruff, Müglitztal, Dohna and glassworks. Its proximity to the former residence and today's city of Dresden, this area is fairly densely populated. Around 60 major cities are located in the Doehlen pools, which are the most populated places in Weißeritztal, especially Deuben, Döhlen and Potschappel from which in the 20th century became the town of Freital. By incorporations of laying nearby places, the population grew up to a peak level of about 45,000 inhabitants, currently she is at about 39,000. Throughout Doehlen pool live about 60,000 people.

Geology

Surrounded Doehlen is the basin of the Meissner intrusive and the Elbe Valley Slate Mountains. The Karsdorfer fault forms the geological boundary to the southern Eastern Ore Mountains.

Formation and sedimentation of the basin lasted from Upper Carboniferous to Oberrotweil Lying, they were trending NW- SE from the adjacent fault zone ( Elbe Valley zone) tectonically influenced. The Doehlen basin has an up to 800 m thick basin fill, which is divided into four formations. About half of the layer sequence set pyroclastics.

History

Of economic importance were the coal seams of the Döhlen formation whose deposits were known since the 16th century and especially in the late 19th and early 20th centuries provoked an intense mining activity. As of 1968, the mining activity was limited to the removal of uranium ore leading coal on the north western edge of the basin Doehlen by the Wismut. Since 1989, the aboveground and underground facilities in the region are preserved and renovated.