Devil's Blade (Tumbach)
The Devil's Blade is located about two kilometers south-southeast of the Heubach town center in the Ostalbkreis in Baden-Württemberg . In the basic word it bears the " blade ", a word common in southern German for steep notch valleys . A left upper course of the Tumbach rises in it (in dialect: "Daunbach").
The Devil's Blade is a natural monument and was created on the Albtrauf of the Eastern Alb as a so-called roar . This is the name given to a karst spring in the Swabian Alb from which water does not come out permanently, but only from time to time, for example after persistent rainfall or when the snow melts.
geomorphology
The imposing large devil's blade has a vertical, semicircular spring niche with a diameter of 100 m and a height of around 80 m. The semicircular rock face is around 20 meters below the edge of the Alb plateau. About halfway up the vertical “niche” there is a one-meter-wide spring opening ( 630 m above sea level ) in the limestones of the Well- Stratified Limestone Formation (ox2, formerly White Jura beta ). Marl layers and well-layered limestone are open .
The actual V-shaped recessed blade in the marl stones of the Impressamergel formation (ox1, formerly White Jura alpha) joins below the source table . The steep sloping rubble slopes of the blade are densely overgrown with trees. Clear saber growth in many trees indicates that the slopes are moving.
(Hydro) geology
When there is a high volume of karst water, the spring jumps on and spits a powerful jet of water around 30 meters freely falling into the blade from the opening with a roar in a wide arc. The Bröller always emerges when water accumulates in the "Gewann Schorren" on the Alb plateau ( 710 m above sea level ) and it sinks, among other things, in the sinkholes one kilometer southeast of the source position. The roar pours more than could be explained by the shrinkage there alone.
A large catchment area is drained from the karst water system of the Alb plateau around 50–100 m above the Teufelsklinge spring. The Tumbach and the Griesbach running parallel to it have created two closely adjacent valleys through backward erosion, between which there is only a strip less than 200 m narrow up on the west-north- western spur of Nägelberg from the Alb plateau; the karst waters are divided between the sources of the Teufelsquelle and the Griesbrunnen of the Griesbach. In several exploratory steps , the Teufelsklingenbröller consortium measured the Teufelsklinge at 1270 m through several siphons (as of April 2010); This makes the cave the longest cave in East Württemberg .
Surname
In the description of the Oberamt Gmünd , part of location descriptions, Heubach, from 1870 it says about the devil's blade u. a .: “A spring from a deep basin breaks out in a strong arc and forms a waterfall that is dusty from afar; - a horribly desolate, deserted, sad place, into which the sun rarely shines, [...] The folk legend wants to know that once upon a time the Savior on the Rosenstein quarreled with Satan and defeated him, whereupon he fell into the devil's blade imprisoned until his time was up and he could be redeemed; and as often as Satan stirs below, the spring swells overflowing. "
geography
Before Heubach, the Albtrauf is roughly three kilometers thick. After the end of the village you choose the valley on the left - seen upstream. The forest on both sides covers the slopes for the most part and in the lower part turns into grasslands and then pasture meadows . The Tumbach, with constant water in the meadows, is fed by three small springs at the end of the valley and on the northern slope. The road 1162 winds in the northern forest slope to Bartholomä .
As long as the forest is densely leafy, the natural monument cannot be seen. The devil's blade and its high niche in the rock cut 190 m into the 180 m high, steep eaves.
Several forest paths suitable for hiking and a footpath for the last 400 m lead from the valley floor at the southern end of Heubach to the spring niche. A wide, horizontal forest path leading away from the road at a height of 640 m also leads to the source niche, where a very steep, short trampled path then leads down to the source table of the niche.
See also
literature
- Hans Binder , Herbert Jantschke: Cave guide Swabian Alb. Caves - springs - waterfalls . 7th completely revised edition. DRW-Verlag, Leinfelden-Echterdingen 2003, ISBN 3-87181-485-7 , p. 58 .
- Geotopes in the Stuttgart administrative region. State Institute for Environmental Protection Baden-Württemberg, Karlsruhe 2002, p. 94 ( online ).
Web links
- Profile of the extensive natural monument in the LUBW's list of protected areas
- Geotope profile at the State Office for Geology, Raw Materials and Mining
Individual evidence
- ↑ Geotope profile at the State Office for Geology, Raw Materials and Mining . Also F31, Geotourist Map, North.
- ↑ H. Binder, H. Jantschke: Höhlenführer Schwäbische Alb . 7th edition. 2003, p. 58 f.
- ↑ babble.speleologie.de ( Memento of the original from April 28, 2011 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. November 2007, there also two photos with karst water.
- ↑ See website of the Arge Teufelsklingenbröller .
- Jump into unexplored depths . In: Gmünder Tagespost , April 15, 2010.
- ↑ Heubach in the description of the Oberamt Gmünd , part location description, p. 337 ( Wikisource ).
Coordinates: 48 ° 46 ′ 8.1 ″ N , 9 ° 56 ′ 29 ″ E