WPŁYW CECH PETROLOGICZNYCH NA WŁAŚCIWOŚCI MECHANICZNE SOLI KAMIENNEJ Z LGOM (LEGNICKO-GŁOGOWSKIEGO OKRĘGU MIEDZIOWEGO)

Katarzyna Cyran, Tomasz Toboła, Paweł Kamiński

Abstract


EFFECT OF PETROLOGICAL FEATURES ON MECHANICAL PROPERTIES OF ROCK SALT FROM THE LGOM (LEGNICA–GŁOGÓW COPPER DISTRICT)

The paper presents the attempt to find a correlation between the content of impurities and mechanical parameters of rock salt from the LGOM. Research was carried out in three steps: uniaxial compressive strength tests, determination of the content of insoluble minerals (impurities), and observations under the microscope and Raman microspectroscopy. The research results reveal that the rock salt which is characterized by low content of insoluble minerals (0.13–2.11% wt.) shows no correlation between the mechanical properties and the content of impurities. However, it was found that mechanical properties depend on both the distribution of impurities in halite crystals and the presence of fluid inclusions and hydrocarbons along the crystal boundaries. Moreover, the distribution of anhydrite at the edges of halite crystals may influence an increase of rock salt strength. On the contrary, the presence of fluid inclusions and hydrocarbons along the halite crystal boundaries may reduce the rock salt strength.


Keywords


parametry wytrzymałościowe, petrologia soli, zawartość części nierozpuszczalnych, inkluzje fluidalne, mikrospektroskopia ramanowska, materia organiczna.

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