Former shell limestone quarry southwest of Krautheim
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Former Muschelkalkbruch SW of Krautheim
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 The shell limestone quarry near Krautheim |
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| location | Volkach - Krautheim (Volkach) , Lower Franconia , Bavaria , Germany | |
| surface | 1000 m² | |
| Identifier | Geotope 675A002 | |
| Geographical location | 49 ° 53 ' N , 10 ° 17' E | |
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| Sea level | from 223 m to 256 m | |
Former Muschelkalkbruch southwest of Krautheim (officially former Muschelkalkbruch SW von Krautheim , also Weinbergsleitengraben ) is a geotope and natural monument in the outskirts of the Volkach district of Krautheim in the Lower Franconian district of Kitzingen .
Geographical location
The former Muschelkalkbruch is located in the southwest of the Krautheim district. Today the Krautheim sewage treatment plant can be found to the north. The northeast is occupied by other abandoned stone and clay quarries that lie on the road towards Rimbach . An unnamed tributary of the Weidachbach flows past in the south, while the Weidachbach itself flows further south-west towards Obervolkach . The abandoned quarry can be reached via the St 2274 state road and connected to it by a dirt road over the Wenceslas mill and the brickworks .
description
The quarry is part of an extensive fault with a narrow horst clod , the so-called fault zone Wipfeld - Gaibach - Prichsenstadt . The fault zone is one of the most prominent fractional tectonic elements in Lower Franconia. It presents itself as a Hercynian break and is the strongest of these breaks in the region. The zone around Krautheim is characterized by heavier stratification.
The profile includes parts of the Middle Muschelkalk , especially the thick-cheeked stylolite limestone , and the beginning of the Upper Muschelkalk . However, the latter is difficult to access and only marginally visible. The fracture is the only outcrop of the middle shell limestone in the fault zone. In the former quarry, there are sections that are raised by bending tectonics with stones from the Knaurige Bank, Yellow Kipper, as well as fossils from the Upper Terebratelbank and Ostracodenton.
| Profile of the quarry | |||||||
|---|---|---|---|---|---|---|---|
| Strength | rocks | ||||||
| 0.30 m | Gray limestone, dense, secreting banky | ||||||
| 0.50 m | beech lentil limestone, in marl slate | ||||||
| 0.35 m | Clay marl slate , finely layered, ocher yellow | ||||||
| 0.35 m | Limes, platy, marl deposits | ||||||
| 0.25 m | Schillkalke , gray, red stained | ||||||
| 0.20 m | beech lime lentils, gray, with clay marl slate | ||||||
| 0.35 m | Clay marl slate, ocher yellow, finely layered, discolored yellowish, fossil-free | ||||||
| 0.25 m | beech limestone, dense | ||||||
| 0.20 m | Schill limestone, platy, red-spotted | ||||||
| 0.35 m | beech limestone, bulging gray | ||||||
| 0.20 m | oak, crystalline limestone bank, hard, dense | ||||||
| 0.55 m | Schillkalkbank, gray, with fine red spots | ||||||
Development
In the past, the Krautheim quarry was one of the many smaller quarries in the area. Here Schill limestone was broken for building purposes. Today the quarry is overgrown and partially filled. Today it is owned by the city of Gerolzhofen , which also presents the fossils discovered here in its city museum. The Krautheim quarry probably came into the hands of the city during the National Socialist dictatorship because the stones were used to build roads.
As a research and teaching object, the natural monument is freely accessible today and has been the destination of scientific excursions several times . The geoscientific value of the quarry is described as valuable, the second highest category. In particular, the rarity of such a sequence of layers in the region is the reason for this classification. The quarry is part of the geological spatial unit Eastern Franconian Plates .
literature
- Josef Schwarzmeier: Geological map of Bavaria 1: 25,000. Explanations for sheet no. 6127 Volkach . Munich 1983.
Web links
Individual evidence
- ↑ Schwarzmeier, Josef: Geological Map of Bavaria 1: 25,000. Sheet No. 6127 Volkach . P. 67 and 69.
- ^ Bavarian State Office for the Environment: Former. Muschelkalkbruch SW von Krautheim , PDF file, accessed on February 3, 2018.
- ↑ Schwarzmeier, Josef: Geological Map of Bavaria 1: 25,000. Sheet No. 6127 Volkach . P. 25.
- ↑ Schwarzmeier, Josef: Geological Map of Bavaria 1: 25,000. Sheet No. 6127 Volkach . P. 107.
- ↑ Main-Post: Gerolzhofen's quarry in Krautheim , accessed on February 3, 2018.
- ^ Bavarian State Office for the Environment: Former. Muschelkalkbruch SW von Krautheim , PDF file, accessed on February 3, 2018.