Distribuição de Hg total e suas associações com diferentes suportes geoquímicos em sedimentos marinhos da margem continental brasileira: Bacia de Campos - Rio de Janeiro

Química Nova

Beatriz Ferreira Araujo¹  Marcelo Gomes De Almeida¹  Marcos Sarmet Moreira Barros Salomão¹  Renato Rosa Gobo¹  Verônica Caldas Siqueira¹  Álvaro Ramon Coelho Ovalle¹  Carlos Eduardo De Rezende¹ 

[1] ,Universidade Estadual do Norte Fluminense Centro de Biociências e Biotecnologia Laboratório de Ciências AmbientaisCampos dos Goytacazes RJ ,Brasil

关键词: mercury;    Continental Margin;    carbonate;   

DOI  :  10.1590/S0100-40422010000300002

来源: SciELO

【 摘 要 】

Mercury distribution and geochemical support on the Continental Margin was evaluated at the Campos Basin, Rio de Janeiro state, Brazil. The average concentrations for all analyzed elements were, respectively, 20 ± 5 ng g-1 (Hg); 30 ± 14 mg g-1 (Al); 16 ± 6 mg g-1 (Fe), and 254 ± 83 µg g-1 (Mn). Silt and clay content, total carbonate and Hg, and organic carbon increased with depth. Finally, the relationship between Hg and silt clay showed significant positive correlation. Total Hg concentrations are the background level described primarily (~40 ng g-1).

【 授权许可】

CC BY-NC   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License