Zbyslavská mozaika
Zbyslavská mozaika (German: Mosaic of Zbyslav ) is a natural monument in Okres Kutná Hora in the Czech Republic . The rock, on which the surf of the Chalk Sea left its mark, has been under protection on 0.521 hectares since 1977 because of its special geological importance.
The village of Zbyslav , part of the municipality of Vrdy , is located 7 kilometers northeast of Čáslav on a hill made of gneiss . In the Upper Cretaceous the rock protruded from a flat and warm sea. The surf washed up limestone and marl , which were deposited as sediments on the island's beach. The age of the coastal strip is estimated to be 110 million years.
The visible outcrop is only 4 square meters and is therefore also known as the smallest nature reserve in the world. The rock is now at an altitude of 235 mnm. It is covered by a 1–5 centimeter thick layer of small pieces of dark gneiss enclosed in a white-gray putty made of marl and lime. The top layer contains fragments of fossilized worms ( Serpula gordialis ) and shells ( Pollicipes sp. ).
Although the location is unique in the Czech Republic, it is in a desolate state. The mosaic is overgrown by algae and suffers from the weather. There are therefore proposals to provide the rock with a protective roof or to transfer it to a museum.
literature
- Chráněná území České Republiky 1. Střední Čechy. Publisher: Agency ochrany přírody a krajiny ČR. Prague 1996, ISBN 80-902132-0-0
Web links
- www.geology.cz - description (Czech) and picture
Coordinates: 49 ° 56 ′ 36.9 ″ N , 15 ° 28 ′ 27 ″ E