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Browsing by Subject "Zechstein stratigraphy"

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  • thumbnail.journal.alt
    Item type:Article, Access status: Open Access ,
    Poziomy mineralne w solach cechsztyńskich wysadu solnego Kłodawa jako narzędzie korelacji litostratygraficznej
    (Wydawnictwa AGH, 2010) Wachowiak, Jacek
    Evaporate formations include a number of accessory minerals that are insoluble in water. They can be easily separated by dissolving sediments. The samples collected from rock, potassium-magnesium and zuber salts of the Kłodawa salt diapir were subjected to hydro-separation to obtain insoluble residuum in which the presence of idiomorphic monocrystals was found: anhydrite, sulphate hydrotalkite, magnesite, dolomite, calcite, boracite, kongolite, quartzite, hematite, pirite and sulphur, as well as microcrystalline concentrations of szaibelyite, talc, mica and chlorites. The majority of those minerals occur in various section layers at the same time. Few of them display a very narrow scope of concentration relating to exclusively specific layer or part of the stratum, creating specific mineral layers. They include: quartz and calcite with the ingrowths of bitumen, boracite, szaibelyite, talc, sulphate hydrotalkite and kongolite. Based on the occurrence of those minerals, five mineral levels were identified in the Kłodawa salt diapir. They can present a new tool for lithostratigraphic identification and correlation of strata and layers in Zechstein salt deposits.