Szukana fraza: [Abstrakt = "This paper presents results of research of unevenly aged tills \(boulder clays\) occuring in the construction ground of the northern part of Poznań. For these deposits physical features and their parametres connected with the consistency and cohesiveness were determined. They were also characterised in terms of grain size. Furthermore, using the X\-ray diffraction method, the analysis of the mineral composition of clay fraction in the examined samples of boulder clays was conducted. The resulst of the aforementioned tests, of interdisciplinary dimension, is the correlation mineralogical properties \(associated with the origin of deposits\) of moraine cohesive soils with their geotechnical parametres."]

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