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- 저자 : Umberto Tessari (검색결과 1 건)
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Dario Di Giuseppe,Umberto Tessari,Barbara Faccini,Massimo Coltorti 한국지질과학협의회 2014 Geosciences Journal Vol.18 No.4
In recent years, several approaches for the identificationof the provenance of the sediments have been developed. Inparticular, geochemical, petrographic and mineralogical analyseswere applied to the sediments of the Po Plain in order to discriminatethe alluvial sediments of the Po River from those comingfrom Apennine rivers. In this work, we propose an innovativetechnique based on the measurement of density for the study ofthe Po Plain alluvial sediments. This study is based on the determinationof major and trace elements, particle density and mineralogicalcomposition of 53 superficial sediments. All the data wereprocessed using multivariate statistics. The comparison betweendensity, geochemistry, and granulometry of the Po River and RenoRiver (the most important Apennine river) samples shows how thedensities strictly depend on the chemical-mineralogical compositionand grain size of the sediments and, consequently, on the type ofhydrographic basin of their respective river. On this basis it can bediscriminated the provenance of two different types of alluvial sedimentswith sufficient precision, determining the density of theunconsolidated alluvial material.
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