Troll rocks

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Troll rocks near Münster-Sarmsheim.

The Trollfelsen are a rock formation of the Rotliegend near Münster-Sarmsheim in the Bad Kreuznach district in Rhineland-Palatinate . They are the main attraction in the Trollmühle nature reserve in the Trollbachtal .

geology

The up to 15 meters high troll cliffs represent the weathered remains of an alluvial fan that poured from the Hunsrück into the Saar-Nahe basin during a hot and dry climatic period during the Permian . They consist of a coarse-grained fanglomerate , which is composed of the Lower Devonian rocks of the Hunsrück. These are mainly quartzites , sandstones , slate and phyllites . In addition, there are limestones that come from a central Devonian reef near Stromberg . Geologically, the troll rocks are assigned to the Wadern layers . The erosion formed towers and bizarre structures from the clastic sedimentary rock . The three most conspicuous rocks are called "Nikolaus", "Camel" and "Egg Rocks".

ecology

The troll rocks mark one of the driest and climatically warmest points in Rhineland-Palatinate. The steep rocks offer a habitat for particularly thermophilic plants. The ground-flowered sedge ( Carex halleriana ), which was first identified at this point in 1934 by David Wiemann, settles here .

Federal highway 61 runs below the Trollfelsen .

The rocks are also used as a climbing area, there are around 15 routes of difficulty levels II - VII.

literature

  • Wolfgang R. Dachroth: Oberrotliegend on the southern edge of the Hunsrück. Der Aufschluss Volume 28. Heidelberg 1977. pp. 61–67.
  • Heinz Hoppstädter: The rocky cliffs in the Trollbachtal. Naheland calendar 1973, local history series of the Bad Kreuznach district 1973.
  • Karlheinz Rothausen, Volker Sonne: Mainz Basin. Geological Guides Collection, Volume 79. Gebr. Borntraeger, Berlin 1984. P. 99.
  • K. Stapf: Alluvial fan and playa sediments in the Upper Red-lying area of ​​the Saar-Nahe basin. Messages from POLLICHIA issue 70, Bad Dürkheim 1982. pp. 7–54.

Web links

Commons : Troll Rocks  - Collection of images, videos and audio files

Individual evidence

  1. ↑ Dachroth 1977; Stapf 1982.
  2. ↑ Rothausen, Sonne 1984, p. 99.
  3. ↑ Trollfelsen , ig-klettern-rhein-main.de, accessed on June 11, 2012

Coordinates: 49 ° 56 '  N , 7 ° 53'  E