Preliminary data regarding the tailing pond of Suha Valley – Tarnița, Suceava County (Romania)
Journal Title: Analele stiintifice ale Universitatii "Alexandru Ioan Cuza" din Iasi - seria Geologie - Year 2012, Vol 58, Issue 1
Abstract
The tailings pond of Suha Valley consists of the waste material generated by the now-abandoned ore-processing plant of Tarnița. In terms of mineralogy, primary minerals (quartz, galena, sericite, subordinate barite and sphalerite) and secondary minerals (probably sulfates and Fe oxy-hydroxides) have been identified. Over 70% of the solid material falls within the fine and very fine fractions (less than 0.25 mm). Soluble fractions can exceed 58%, increasing with the amount of secondary minerals; the pH values are extremely low (2.17–3.51). The abundance of toxic metals emphasizes two sequences, as follows: (1) Zn > Cu > Pb > As (specific to samples with a high content of secondary minerals); (2) Cu > Pb > Zn > As (specific to samples with a low content of secondary minerals). The physical and chemical parameters of the waste deposit indicate a high risk of environmental contamination, amplified by their susceptibility to airborne, hydromechanical and hydrochemical transport.
Authors and Affiliations
Dan Stumbea, Marius Marian Chicos
Keywords
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