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Carbon isotope analyses of peat profiles from the Karkonosze Mts. (SW Poland) and tree-ring cellulose from Wisła river valley in the Kraków region (S Poland) have been carried out. The samples analysed represent approximately the last 1100 years.The δ13C profile in peat from the Szrenica peat bog ranges from -26.74 to -21.81‰ and the δ13C value of tree rings range from -27.82 to -21.94 permil. The...
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