Stone (Eitorf)

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stone
Eitorf municipality
Coordinates: 50 ° 45 ′ 20 "  N , 7 ° 27 ′ 34"  E
Height : approx. 234–270 m above sea level NHN
Residents : 228  (2014)
Postal code : 53783
Area code : 02243
Stein (Eitorf), aerial photo (2017)
Stein (Eitorf), aerial photo (2017)

Stein is a district of the municipality of Eitorf in the Rhein-Sieg district .

location

Stein is in the Eitorfer Switzerland . Neighboring towns are Mühleip and Keuenhof-Hove .

Residents

In 1885 Stein had 25 residential buildings and 133 residents.

Basalt quarry stone

In the Stein district, the basalt columns were dismantled commercially.

The Stein volcano is registered as a natural monument NSG SU-086. The basalt is 19 million years old. It covers an area of ​​0.1 km², the column height is 15-20 m.

Most of the approx. 270 basalt formations in the Middle Rhine region are less thick. The volcano in stone is one of the few exceptions. According to the current state of knowledge about the formation of the basalt volcanoes in the Rhineland and based on investigations on the local occurrence by the geological state office of North Rhine-Westphalia in Krefeld, the volcanic events in Stein can be reconstructed as follows: The extraction of the basaltic magma took place on the northwestern edge of the Occurrence via a tubular chimney which broke apart under the pressure of further penetrating masses in the southeast. The lava flowed into a depression in front of the volcano, more than 20 m deep, where it accumulated and solidified to form a lava blanket. In the next 19 million years, the volcano's cinder cone was completely built up. The rock of the quarry created in the lava cover shows the cooling-related secretion forms typical for basalts, predominantly pentagonal and hexagonal columns. The pillars lying flat in front of the quarry walls collapsed during the blasting and demolition work.

The quarry is a refuge for rare animals and plants. Above all, the Russian bear (a type of butterfly) and the yellow-bellied toad are threatened species.

Web links

Individual evidence

  1. ↑ Municipality of Eitorf, accessed on February 25, 2014 ( Memento of the original from November 9, 2017 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. @1@ 2Template: Webachiv / IABot / www.eitorf.de
  2. ^ Community encyclopedia for the Kingdom of Prussia . Volume XII. Rhineland Province. Publishing house of the Royal Statistical Bureau, Berlin 1888, p. 115 ( digitized version [PDF; 1.5 MB ; accessed on May 19, 2017]).