Paczółtowice - unique carboniferous "marble"

• Autorzy: Makowska D.
• Konferencja: XVth International Conference of Young Geologists Her'lany 2014 : Międzybrodzie Żywieckie, Poland, May, 8th-10th 2014
• Języki publikacji: EN

Abstrakty

EN

The Paczółtowice "marble" is a unique Carboniferous limestone modified in the later Carboniferous-Permian times as a result of plutonic and tectonic activity that resulted in the rocks inhomogeneity. Three varieties of the Paczółtowice "marble" can be distinguished. The first and prettiest variety of the Paczółtowice "marble", called "polish onyx", is a multicolour, middling and thickly-crystalline calcite vein with thickness up to 20 m. It is probably Permian lateral secretion in the Carboniferous limestone, which was formed by the hydrothermal processes. Second variety is a multicolour Carboniferous limestone modified by warm, Fe-rich dilutions related to the volcanic activity known from the Dębnik anticline. It is represented by white, grey and reddish "marble" exhibiting unusual diffusion rings. The third variety is a calcareous breccia of this Carboniferous limestone joined together with multicoloured calcite. These limestones are called "marbles" because they show similar technical properties like marble sensu stricto. The Paczółtowice "marble" has favorable technical properties and significant parts of the deposit have a high decorative value. Hence, it was a valuable material used for many monuments. Most often, this colorful limestone was combined together with the Dębnik marble, which exhibits a deep black colour after polishing. Both marbles together give a fantastic contrast and wonderful decorative effect in the monuments. The Paczółtowice "marble" was discovered in the Paczółtowice village which is situated 6 km from Krzeszowice and occurs within the "Kraków Valleys" Landscape Park (southern Poland). This area is protected because of its valuable geology, fauna and flora. In such situation, there is a conflict between any desire to deposit development and the requirements of the protection of nature and landscape. The peculiarity of this "marble" tends to maintain deposits in the balance sheet as a reserve of raw material for a small retrieval, mainly for reconstruction of existing monuments. Exploitation of the "marble" could be possible in parts of the deposit, but appropriate environmental and landscape rigors must be respected. The quarry face could expose the details of the geological structure of the site. After finishing exploitation, a quarry would improve its landscape value and become a fantastic geotouristic attraction.

Słowa kluczowe

EN

Carboniferous limestones; Polish onyx; Dębnik anticline

• Wydawca: Wydawnictwa AGH
• Czasopismo: Geology, Geophysics and Environment
• Rocznik: 2014
• Tom: Vol. 40, no. 1
• Strony: 103

Twórcy

autor

Makowska D.

• AGH University of Science and Technology, Faculty of Geology, Geophysics and Environmental Protection; al. Mickiewicza 30, 30-059 Krakow, Poland