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Red paleosols on limestone at the base of loess sequence on Susak vs. terra rossa infillings in limestone cracks and cavities: high-resolution depth and chronological approach

The cracks in Senonian limestones on the island of Susak are filled by red clayey materials (terra rossa) which we consider remain of the oldest paleosol(s) on the island. The same limestone is covered by loess-paleoosol sequence up to 90 m thick. The lowermost red paleosol in this sequence covers the carbonate bedrock. From the mineralogical and geochemical view point two different types of terra rossas are situated within limestone cracks. The first dating study of the loess – palaeosol sequence on Susak was performed by Wacha et al. (2011 a, b) and showed that that most of the exposed sedimentary record can be correlated with oxygen isotope stages (OIS) 5 to 2. With the means of IRSL dating methods and high-resolution palaeomagnetic measurements we will try to provide age(s) of the lowermost red paleosol that covers the carbonate bedrock and acquire knew information about terra rossa in limestone cracks. Wacha, L., Mikulčić Pavlaković, S., Novothny, Á., Crnjaković, M. & Frechen, M. 2011a: Luminescence Dating of Upper Pleistocene Loess from the Island of Susak in Croatia. Quaternary International 234/ 1–2, 50–61. Wacha, L., Mikulčić Pavlaković, S., Frechen, M. & Crnjaković, M. 2011b: The Loess Chronology of the Island of Susak, Croatia. Quaternary Science Journal (E&G) 60/1, 153–169.

red paleosols; terra rossa infillings in limestone cracks and cavities; high-resolution depth and chronological approach; Susak; Croatia

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