Badania surowcowe morskich osadów ilastych miocenu w zapadlisku przedkarpackim

Stefan Kozłowski, Zbigniew Kozydra

Abstrakt


STUDY ON THE MARINE CLAY DEPOSITS OF THE MIOCENE IN THE CARPATHIAN FORE-DEEP

Summary
The Carpathian fore-deep is filled up with the marine clay deposits of the Sarmatian, reaching up to 3000 m in thickness. This is the so-called ,,Krakawiec clay facies". The deposits here discussed are characteristic of three fractions: arenaceous (above 0,06 mm), silt (0,005-0,06 mm) and clay (below 0,005 mm). In the mineral composition of clays dominate illite, detrital quartz, and carbonate minerals. Montmorillonite, organic substances, pyrite and hydrated ferric oxides occur in changing quantities, as admixtures only.
The Krakowiec clays play an important part as a mineral raw material for building ceramics. The clays make approximately 25% of the total resources of clay raw materials for building ceramics of the country. They give more than 140 mill. ceramic units a year. The clays here discussed should also be used in production of light aggregates (agloporites and keramsites). The Krakowiec clays were also documented at several points as complementary mineral raw material for cement production by wet method.

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