Geochemical study of precipitates in the architectural surfaces from Bern, Switzerland
Abstract
The study of these precipitates using optical and electron microscopy clearly shows dominant sulfate phases are gypsum (calcium sulfate), mirabilite (sodium hydrated sulfate) and polyhalite (potassium, calcium and magnesium sulfate). Impurities of Ni, Cu, Zn and Pb was encountered by ICP-MS analysis. Identified polymetallic mineralization is associated with the infrastructure of the bridge and the accumulation of pollution from vehicular traffic. This is also confirmed by sulfur and oxygen stable isotope analyses of sulfates.
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DOI: http://dx.doi.org/10.17951/aaa.2015.70.113
Date of publication: 2016-04-29 12:28:31
Date of submission: 2015-12-08 23:10:30
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Copyright (c) 2016 Miłosz Andrzej Huber
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