Naslov
Paleotla u pleistocenskim praporima Baranje i Srijema – geokemijske i mineraloške značajke
(Paleosols in pleistocene loess in Baranja and Srijem -geochemical characteristics)

Autori
Galović, Lidija

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Uloge tla u okolišu / Kisić, Ivica - Šibenik : Hrvatsko tloznanstveno društvo, 2006, 53-53

ISBN
953-6135-54-X

Skup
X. kongres Hrvatskog tloznanstvenog društva

Mjesto i datum
Šibenik, Hrvatska, 14.06.2006. - 17.06.2006

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
paleosol; loess; geochemistry; Pleistocene; Croatia

Sažetak
From the geological point of view, Eastern Slavonija and Baranja are built mostly of the Pleistocene loess and Holocene alluvial sediments. Four typical profiles on the Bansko brdo Mt. and along the Danube River were investigated and subjected to detailed geochemical investigations. Intensive autochthonous pedogenesis is required for the K-horizon formation, suggesting that several K-horizons without interbedded paleosols must indicate erosion of their ones existed paleosols. Thus, the possibility of marking paleosols by “ counting from surface” is ruled out. The synthesis of investigated profiles would probably result with at least eight profiles. The preliminary results of dating indicate that the oldest analysed paleosol was deposited during the Riβ /Würm interglacial. Well developed investigated paleosols are Eutric Cambisols, while the less developed paleosols are Kastenozems. As far as investigated profiles are concerned, A-horizon is eroded from all paleosols. Paleosols are enriched with less mobile trace elements, which is especially emphasized in the well developed paleosols. Paleosol horizons could be clearly extracted from loess on the bases of weathering coefficients - Ba/Sr, and (CaO+Na2O+MgO+K2O)/Al2O3. Results of statistical tests showed that weathering coefficient Ba/Sr, fits the criteria of equality of variances and means for less and for better developed horizons of paleosols. Accordingly, possibility cannot be rejected that the two sub-groups of samples belong to the same population (paleosols).

Izvorni jezik
Engleski

Znanstvena područja
Geologija, Poljoprivreda (agronomija)

POVEZANOST RADA