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See detailElementverteilung in einem moorprofil (Präboreal bis subatlantikum) im Tal der Helle/Hill (Hohes Venn, Belgien)
Gaida, R.; Olbrechts, S.; Hindryckx, Marie-Noëlle ULg et al

in Geoökodynamik (1997), XVIII(2/3), 79-90

This investigation was on the distribution of some elements (Ca, Cd, Cr, Cu, Fe, K, Mg, Mn, Ni, Pb, Zn) in a groundwater bog in the Helle/Hill valley in the Hohes Venn, Belgium. The thickness of the ... [more ▼]

This investigation was on the distribution of some elements (Ca, Cd, Cr, Cu, Fe, K, Mg, Mn, Ni, Pb, Zn) in a groundwater bog in the Helle/Hill valley in the Hohes Venn, Belgium. The thickness of the deposit is 155 cm. This bog has developed since the Pre Boreal period. The distribution in the lower part of the bog profile is very strongly influenced by water from the adjacent slope which is characterised by a high content of different metals. This resulted in a significant amount of Fe, Ni and Zn and to a lesser degree of Cu and Cd. The metals stem from ore which originated from the nearby Hill valley tonalite. The weathering of the sulphidic ore created sulphuric acid which is responsible for the low pH values of the peat samples. Not only the influence of the local geology and mineralogy is discussed, but also the behaviour of different plants with respect to element uptake and accumulation. Atmospheric input also has an influence, especially on the distribution of the elements in the upper part of the profile. [less ▲]

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