Finkenberg (Bonn)
| Finkenberg | |
|---|---|
 Vineyard on the Finkenberg |
|
| height | 97.3 m above sea level NHN |
| location | Bonn - Limperich , North Rhine-Westphalia |
| Mountains | Siebengebirge |
| Coordinates | 50 ° 43 '59 " N , 7 ° 8' 23" E |
| rock | basalt |
| Age of the rock | 27.5 million years |
The Finkenberg is a small mountain in the Limperich district of Bonn , upstream of the Ennert , the northernmost foothills of the Siebengebirge , to the west. Originally the mountain consisted of a 119 meter high summit and three smaller hills. Today, after being used as a quarry for a long time, it only reaches 97 m above sea level . The mountain is registered as a 29 hectare landscape protection area , part of the quarry as a natural monument . On it are the remains of Limperich Castle and the "northernmost vineyard in the Rhineland".
history
The first known mention of the mountain comes from 1166 as "Vinkenberge", viticulture in the area is mentioned as early as 922. Limperich Castle dates from the 13th century. In 1811 Napoleon is said to have assessed Bonn's strategic location from Finkenberg. Basalt mining on the Finkenberg began around 1830. A field railway brought the stones to the Rhine for loading . From 1847 to 1977 the Finkenberg was also used for land surveying; the trigonometric point had to be moved several times, among other things because of the basalt mining.
Forced laborers were used in the quarries in both World War I and World War II . The name "Russenpohl" for one of the two lakes created in quarry pits reminds of the Russian prisoners from the First World War. Three of the Polish forced laborers in World War II were murdered on the Finkenberg in 1941, a memorial stone commemorates this.
Stone quarrying ended in 1952. The remaining pits were initially wild, and from 1969 to 1973 they were used as rubbish dumps . In the early 1960s, a soccer field and a dog sports field were created on the Finkenberg. After the refuse was backfilled, the affected areas were replanted and the mountain was designed as a recreational area with paths. From 1992 the terraced vineyard , which had not been used since the 1950s, was restored, and since 2004 it has been appointed by the Limperich Citizens' Association. In 1999 the Finkenberg was included in the "Ennert Landscape Plan" and parts of the quarry were exposed again to serve as a biotope for rare plants and reptiles.
geology
The Finkenberg is one of the oldest elevations in the Siebengebirge, the solidification of the magma to basalt was dated in 1980 by Todt and Lippolt using the potassium-argon method to be 27.5 million years. The original rock into which the magma penetrated, is Trachyt - Tuff , above both there is clay soil . According to Schürmann (1912) and Frechen (1942), the mountain consists of a flat arched basalt dome in the south and a storage corridor in the northwest.
According to the geological map of the Geological Service NRW, it is an alkali basalt.
The Mineralogical Museum Bonn has numerous minerals from Finkenberg in its collection, including small amounts of sapphire .
Web links
- City of Bonn - Finkenberg
- Leisure guide General-Anzeiger Bonn - Finkenberg
- Limperich.de - The Finkenberg
- Private page "Our Finkenberg"
- Mindat.org - Geology and Mineralogy of the Finkenberg
Individual evidence
- ↑ Information according to the digital terrain model (available in the TIM-online map service )
- ↑ Rudolf Schmidt: The Finkenberg in the state survey (= Monument and History Association Bonn-Rechtsrheinisch eV [Hrsg.]): Small contributions to monument and history in Bonn on the right bank of the Rhine . Volume 1 ). Bonn 2014, ISBN 978-3-9812164-2-4 (23 pages).