Geochemistry of the peat bog at Etang de la Gruère, Jura Mountains, Switzerland, and its record of atmospheric Pb and lithogenic trace metals (Sc, Ti, Y, Zr, and REE) since 12,370 14 C yr BP

Lead isotopes as particulate contaminant tracers and chronostratigraphic markers in lake sediments in northeastern North America

“…In the first study to measure Pb isotopes in corals, Shen and Boyle (1987) were able to see the use and subsequent phase out of leaded gasoline in North America in Bermuda corals over the 20 th century (Shen and Boyle, 1987). In a follow up study out of the same group, Kelly et al (2009) C collected from a Swiss peat bog contained evidence of early agriculture and early mining and smelting activities in the Pb isotopes (Shotyk et al, 1998).…”

Biomarkers and inorganic proxies in the paleoenvironmental reconstruction of mires: The importance of landscape in Las Conchas (Asturias, Northern Spain)

“…Elevated concentrations of mineral matter in the surface layers of bogs (Le Roux and Shotyk,200G) have been attributed to the following: a change in peat accumulation rate (Steinmann and Shotyk, 1997); peat decomposition and humification (Zaccone et al, 2012); variation in the rate of deposition of atmospheric soil dust (Shotyk, 2001;Zaccone et al, 2012) sometimes produced by local human activity, or significant input of volcanic ash (Ougmore and Newton, 1992;Wastegard et al, 2003). AIso, higher ash content may indicate a temporary drying of the bog surface in response to localland use practices, such as extensive forest clearing or grazing (Steinmann and Shotyk, 1997).…”

Biogeochemistry of Nickel and Its Release into the Environment

“…Ombrotrophic peat cores have recently proved to be meaningful archives of recent as well as ancient atmospheric metal deposition, especially for Pb [122][123][124] and Hg [125][126][127][128]. In contrast, there are only a few systematic studies on the distribution and fate of Ni in ombrotrophic bogs [129][130][131][132][133][134].…”

“…The wide dispersion of concentration values is highly dependent on variations due to the strong seasonal infl uence on the mechanism of atmospheric transportation [142]. 14 C dating) corresponds to the Holocene Climate Optimum when rates of atmospheric soil dust deposition were at their lowest [122,136]. Times of high dust deposition are indicated by elevated Sc concentrations in the peat [136].…”