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Anthropogenic impact and lead pollution throughout the Holocene in southern Iberia

García-Alix, Jiménez-Espejo, Lozano, Jiménez-Moreno, Martínez-Ruiz, Sanjuán, Jimenez, Alfonso, Ruiz-Puertas, Anderson
Present day lead pollution is an environmental hazard of global proportions. A correct determination of natural lead levels is very important in order to evaluate anthropogenic lead contributions. In this paper, the anthropogenic signature of early…
Type: Document
Year: 2013

Eolian deposition of forest-fire charcoal above tree limit, Colorado Front Range, USA: Potential contamination of AMS radiocarbon samples

Benedict
Shallow soil cores from 56 localities along the crest of the Colorado Front Range were processed by water flotation and wet sieving, then examined for wood charcoal and charred conifer-needle fragments. Charred particles were largest and most…
Type: Document
Year: 2002