Dills dig
The Dillsgraben in the Harplage ridge is a sinkhole near Königsdahlum in the Hildesheim district of Lower Saxony ( Germany ). Its funnel, naturally formed by subrosion (leaching) of easily soluble underground rocks and in which a lake lies, has been designated as a 1.8 hectare natural monument (ND) since 1996 . He is about 1000 years old.
geography
location
The Dillsgraben is embedded in the northeast roof of the Harplage, a 290.1 m above sea level. NHN high ridge in the Innerstebergland . About 1.3 km northwest of the village church of the Königsdahlum belonging to Bockenem, it is located in an elevation between the Hachumer Bach in the north and another brook in the south, which flow into the Nette flowing to the east . A few meters northeast of the sinkhole is a 179.6 m high point on the summit region of the elevation .
Natural allocation
The Dillsgraben belongs in the natural spatial main unit group Weser-Leine-Bergland (No. 37), in the main unit Innerstebergland (379) and in the subunit Southern Innerstebergland ( Bockenemer Land ; 379.1) to the natural area Harplage - Heber ( Lamspringer Berge ; 379.11). The landscape falls to the northeast into the Ambergau natural area (379.12).
Origin and dates
The dill ditch arose as a typical karst phenomenon by causing groundwater Subrosion of slightly redeeming union gypsum rocks in the Middle Muschelkalk . This leaching and washing caused the collapse of the overlying Trochitic limestone cover rocks .
The roughly circular funnel has a diameter of about 140 m. At the foot of its roughly 30 m high and steeply sloping walls lies an almost circular lake that is no more than 60 m deep. Its water level ( 147 m ) rises and falls periodically with the fluctuations in the groundwater level. The flanks of the sinkhole are planted with semi-natural deciduous forests.
Natural monument protection purpose
"As a rare geomorphological individual phenomenon, the" Dillsgraben and its "naturally formed lake are particularly worthy of preservation from a local and scientific point of view". The aim of the designation as a natural monument is to protect and preserve the sinkhole "as a rare and peculiar geological appearance and to secure its scientific and local history."
Dillsburg
A few meters east-northeast of the Dillsgraben is Dillsburg , a castle-like villa built around 1888 by Johann Friedrich Weule (founder of the tower clock factory and bell foundry J. F. Weule ) that is privately owned. This place was mentioned in the Dillssage (legend of the knight Till ) as the location of a castle, for which there are "no other clues".
Individual evidence
- ↑ a b c d e f Ordinance on safeguarding the “Dillsgraben” natural monument in the town of Bockenem , dated August 22, 1996, accessed on March 22, 2015 (.doc file; 1.019 MB)
- ↑ Kaiserpfalz am Höllenloch ( Memento of the original from June 22, 2015 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. ( ND - HI 26) , dated January 23, 2008, on landundforst.agrarheute.com
- ↑ a b Map services of the Federal Agency for Nature Conservation ( information )
- ↑ Topographic map with the Dillsgraben and Königsdahlum ( Memento of the original from June 22nd, 2015 in the Internet Archive ) Info: The archive link has been inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. (DTK 25), on natur-erleben.niedersachsen.de
- ^ Jürgen Hövermann: Geographical land survey: The natural space units on sheet 99 Göttingen. Federal Institute for Regional Studies, Bad Godesberg 1963. → Online map (PDF; 4.1 MB)
- ^ Entry on Dillsburg in the private database "Alle Burgen".
Coordinates: 51 ° 59 ′ 26 ″ N , 10 ° 6 ′ 4 ″ E