Kristýna Dalajková, Jiří Zimák, Jindřich Štelcl, Dalibor Všianský


The paper summarizes the results of colorimetric analyses of a large set of limestone samples from the Mokrá Quarry in the Moravian Karst (NE from Brno, Czech Republic). The examined samples belong to three lithologically different series of strata: Macocha, Líšeň, and Březina Formations. Limestones of these formations differ in the contents of non-carbonate component and, hence, in colour. The samples were prepared in four ways for colorimetric measurements: 1. unpolished bulk samples (cleavage planes were measured), 2. polished sections, 3. powder in a plastic bag, 4. simple uncovered powder. All of the four ways of sample preparation led to different results. The results were expressed using a CIE L*a*b* colour space. Based on the L* (specific lightness) value, the amounts of a non-carbonate component can be roughly judged. The specific lightness can be used for assigning a sample to a lithostratigraphic member and possibly also to correlation reasons in many cases.

Bibliografická citace

Dalajková, K., Zimák, J., Štelcl, J., & Všianský, D. (2016). VYUŽITELNOST KOLORIMETRIE PŘI STUDIU HORNIN – NA PŘÍKLADU VÁPENCŮ VE VELKOLOMU MOKRÁ. Geologické výzkumy na Moravě a ve Slezsku, 22(1-2), 48-51.  doi:http://dx.doi.org/10.5817/GVMS2015-1-2-48

Klíčová slova

Moravian Karst; limestones; colorimetry

Plný Text:


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