Naturdenkmal in Schleswig-Holstein - Liste Der Naturdenkmaler in Uetersen, Lange Anna, Segeberger Kalkberg, Carl-Maria-Von-Weber-Hain (English, German, Paperback)

Kapitel: Liste Der Naturdenkmaler in Uetersen, Lange Anna, Segeberger Kalkberg, Carl-Maria-Von-Weber-Hain, Brautigamseiche, Liste Der Naturdenkmaler in Bad Schwartau, Wandhoff-Findling, Langbett Krausort, Tweltenberge, Uetersener Blutbuche, Struckberg, 5-Mark-Eiche, Flintbeker Eibe. Aus Wikipedia. Nicht dargestellt. Auszug: The Kalkberg (lit. "chalk mountain") is a 91-metre-high rock in the center of Bad Segeberg. The name is a misnomer as it is not made of limestone (calcium carbonate), but from gypsum (calcium sulfate). The gypsum was formed from of sulfate sediments, which were deposited about 250 million years ago by the Zechstein Sea. Smaller disturbances in the more recent epochs of earth history allowed the less dense Zechstein salts to flow together and force their way upwards from a great depth into the younger overlying rocks to a level near that of the present-day surface. Under the Kalkberg is a salt dome, from which it rises by one to two millimeters a year. As the red cliffs of Heligoland or the Munsterdorfer Geestinsel, it is limestone so that one it is of the few formations in Schleswig-Holstein which was not created by the ice ages. The mining of the salt dome ends in 1860. From the salt dome comes the brine feeting the saltwater bath that give Bad Segeberg its name. Old view of the KalkbergOriginally, the Kalkberg was about 110 m high. After centuries of mining of the gypsum, it stands only 91 meters today. In the Middle Ages, Lothair of Saxony built a castle on the mountain - then called Alberg'. It was destroyed in the Thirty Years War by the Swedes. Today, only a well shaft remains. In 1913, limestone caves which located in the lower part of the rock were discovered. They are home to bats and the only known Segeberger cave beetles (Choleva septentrionis holsatica). Before the First World War, the Kalkberg was property of the Prussian state, which every year made not inconsiderable profits from the gypsum ...http: //booksllc.net/?l=d