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  • Mineralogy and sedimentology of diatomaceous sediments of Slovenia
    Horvat, Aleksander, 1961- ; Mišič, Miha
    The aim of the paper was to describe the diatomaceous sediments discovered in Slovenia, classify and clarify the differences between them on the basis of the mineralogical and geochemical ... characteristics. In the entire Central Paratethys diatomaceous sediments occur in temporally limited sequences, usually in sedimentary rocks that do not contain carbonates. In Slovenia diatomaceous sediments have only been discovered in four fragmentary Middle Miocene sections. The diatomaceous sediments of Slovenia can be placed with respect to their contents of opal-A, clay minerals and carbonate into three groups. In the first group are the samples containing the highest quartz and opal-A and no carbonates. They can be termed diatomaceous siltstones. The second group may associate those samples with a high carbonate content, low quartz and opal-A content and relatively low clay mineral contents. They can be termed diatomaceous siltstones. The third group of samples has a wider dispersion than the first two. Typical are the high contents of quartz and opal-A, and relatively low contents of carbonates and in some samples high percent of a tuff component. The samples of this group could also be attributed to diatomaceous carbonate siltstone with the exception of sample Bc1-1. As the proportion of tuffaceous component exceeds 20 %, it may be termed tuffaceous diatomite.
    Vir: RMZ - Materials and geoenvironment : periodical for mining, metallurgy and geology = RMZ - Materiali in geookolje : revija za rudarstvo, metalurgijo in geologijo. - ISSN 1408-7073 (Letn. 51, št. 4, dec. 2004, str. 2145-2161)
    Vrsta gradiva - članek, sestavni del
    Leto - 2004
    Jezik - angleški
    COBISS.SI-ID - 488030

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    Digitalna knjižnica Slovenije - dLib.si

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