Glacial erratics on and around Rügen

The overview of erratics on and around Rügen facilitates their discovery. A foundling is today mostly single lying, at least one cubic meter of comprehensive block of stone was transported by glaciers during the ice ages in its present location.

Prior to the establishment of the Ice Age theories clustered round the huge " boulders " many stories and legends. Rügen is because of the special situation of the island during the ice ages and by the ongoing coastal erosion a lot of interesting large boulders. In the Neolithic period, people from boulders megalithic tombs that have not yet received numerous complaints on erected. Until the 19th century, large boulders were used as " quarry " to them from building material for monuments (eg, 1854, the Prussian columns at Neukamp and Great Stresow or for the Ernst- Moritz- Arndt- tower on the Rugard ), for coastal - and harbor fortifications to win paving and millstones. The development fell on Rügen countless boulders victim. Today boulders are considered worth preserving natural monuments and have a different status.

The data of the largest boulders on Rügen are shown in the table below. More information can be found in the relevant sections on the individual boulders.

General

On the Baltic Sea island of Rügen and its immediate vicinity, there are especially many large boulders. Firstly Rügen applies (especially the Jasmund peninsula ) as glaciers current divide between the belt and the Oder flow of the Vistula glaciation, resulting in a typical medial scree band has developed. On the other boulders by coastal erosion were ( particularly through the surf ) exposed and can be found on beaches in front of the cliff. Here they fell over time from the glacial till layer was superimposed during the ice age in many places of the mighty chalk layer. The main direction of the glacier stream came from the relatively nearby island of Bornholm, which is why some of the particularly large boulders reprimanding found there.

Boulders, from which the internal structure and composition of their area of ​​origin can be determined, is called Leitgeschiebe. The origin can be determined by the material in the sediment determination literature, but also by comparison with rock samples from the upcoming. Such exists a Nordic collection at the Ernst- Moritz- Arndt- University Greifswald For Rügen. By determining the origin of these large boulders, the directions of the individual glacier streams could be identified.

The proprietary geotopes belong to such complaints boulders of crystalline and metamorphic rocks that have a minimum volume of 10 m³. Most of the boulders, however, the volume can not be determined exactly because they are usually hidden in the bottom part. The dimensions given in the list are therefore based on the traditional estimates, which are also used by most geologists in their publications. In the list, the aboveground volume measured is also indicated; the hidden part in the ground here is thus not taken into account. The proximity factor 0.6 corrects this experience has shown that the deviation from the rectangular shape.

Table

1) Above ground surveyed proportion according to the formula length × width × height × 0.6 (proximity factor) 2) in Mecklenburg-Vorpommern legally protected geological sites are collected by the State Office for the Environment, Nature Conservation and Geology in a register. They are clearly marked with the signature " G2" and a number.

Boulders on land

The Seven Schneider Stone

The Jastor in Sassnitz

The Möwenstein on the island Ummanz

The boulder Jasmund

Boulders in the water

The boulder Blandow at Blandow (municipality Lohme )

The swan stone before Lohme

The Uskam before Saßnitz

The Fritz -Worm - stone to Lobbe