A Study Of Major And Trace Element Accumulation In Humic Acids

Dudare, Diana; Purmalis, Oskars; Kļaviņš, Māris

doi:10.17770/etr2011vol1.891

Cited by 1 publication

(1 citation statement)

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“…Peatlands are good terrestrial archives for reconstructing past environmental changes because of their ability to conserve physical, chemical, and biological indicators. TMs are conserved in ombrotrophic peat with very low mobility because they are mostly bound with humic acids (Dudare et al, 2011). Ombrotrophic peatlands, that is, peat bogs, receive all their water from precipitation; so, they have been widely studied to reconstruct TM atmospheric emissions over time throughout the world (Shotyk et al, 1996).…”

Section: Introductionmentioning

confidence: 99%

Past mining activities in the Vosges Mountains (eastern France): Impact on vegetation and metal contamination over the past millennium

et al. 2016

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Coring was carried out in a soligenous marsh in the Vosges Mountains in the past mining district of Sainte-Marie-aux-Mines (eastern France). High-resolution palynological, non-pollen-palynomorph, and geochemical analyses were performed along the core. Correlations between the herbal composition of the landscape and trace metals in the core reveal a specific palynological pattern during mining activities. Two main periods of anthropogenic impacts on vegetation and trace metal contamination are shown: during the 16th–17th centuries, for mining and smelting activities, and the beginning of the 20th century, for smelting and the Industrial Revolution. No drastic deforestations occurred near the study site, contrary to historical descriptions and prints of the valley. Controlled forest practices were implemented from the beginning of the record, that is, since cal. AD 1000, so the impact of mining activities seems to be less significant than expected near mining sites. We demonstrate that the minerotrophic characteristics of the record closest to past mining sites allows for (1) the description of the landscape associated with anthropogenic activities and (2) the recording of past trace metal emissions without post-depositional mobility.

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Section: Introductionmentioning

confidence: 99%