Mineralogy, geochemistry and Nd isotope composition of the Rainbow hydrothermal field, Mid-Atlantic Ridge

نویسندگان

  • ANA FILIPA A. MARQUES
  • VALERIE CHAVAGNAC
  • YVES FOUQUET
چکیده

Petrological, geochemical and Nd-isotopic analyses have been carried out on rock samples from the Rainbow vent field to assess the evolution of the hydrothermal system. The Rainbow vent field is an ultramafic-hosted hydrothermal system located on the Mid-Atlantic Ridge, characterized by vigorous high-temperature venting (~365ºC) and unique chemical composition of fluids: high chlorinity, low pH and very high Fe and REE contents (Douville et al. 2002). Serpentinisation has occurred under a low-temperature (<270ºC) retrograde

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تاریخ انتشار 2005