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The geothermal degassing and fumarolic alteration occurring at Soussaki, an area in SE mainland Greece, facilitated a strongly acidic environment which resulted in the serpentinized ultramafic parent rock's severe weathering and a large increase of mobility of trace elements, which may be incorporated in newly formed fumarolic alteration products and secondary clays (Cr – bearing clays). We hypothesized that the fumarolic – hydrothermal alteration of ultramafic parent rock would increase the mobility and availability and would cause the distribution of Cr, Ni, Mn and Co in stream sediments and soils in labile fractions. Stream sediment and surface soil samples were collected from 46 sampling sites and the Co > Mn > Cr) is controlled primarily by the Eh/pH system. © 2018 Elsevier Ltd |
