Geochemical regional surveys: comparative analysis of data from soils and stream sediments

António Miguel Pereira Jorge Ferreira

Geochemical regional surveys: comparative analysis of data from soils and stream sediments

DCT - Departamento de Ciências da Terra

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Geochemical maps based on soils and on stream sediments were compared. It was found that the natural background for elements in the two media is quite similar. The same applies to their spatial patterns, except for P. The ratio stream sediment/soil element concentrations increases with increasing soil acidity for Ca, Cu, K, Ba, and also for Mn, Sr and Zn, suggesting that element mobilization under low pH is an important process controlling sediment composition.

Original language	Unknown
Title of host publication	-
Pages	22-25
Publication status	Published - 1 Jan 2010
Event	19th World Congress of Soil Science - Duration: 1 Jan 2010 → …

Conference

Conference	19th World Congress of Soil Science
Period	1/01/10 → …

Cite this

Ferreira, A. M. P. J. (2010). Geochemical regional surveys: comparative analysis of data from soils and stream sediments. In - (pp. 22-25)

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AB - Geochemical maps based on soils and on stream sediments were compared. It was found that the natural background for elements in the two media is quite similar. The same applies to their spatial patterns, except for P. The ratio stream sediment/soil element concentrations increases with increasing soil acidity for Ca, Cu, K, Ba, and also for Mn, Sr and Zn, suggesting that element mobilization under low pH is an important process controlling sediment composition.

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