Trace and major elements in rock samples from Itingussú River Basin, Coroa-Grande, Rio de Janeiro

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• 作者：D. R. Araripe ; L. F. Bellido ; S. R. Patchineelam ; A. V. B. Bellido ; M. T. Guimar?es and M. B. A. Vasconcellos
• 刊名：Journal of Radioanalytical and Nuclear Chemistry
• 出版年：2006
• 出版时间：October, 2006
• 年：2006
• 卷：270
• 期：1
• 页码：103-109
• 全文大小：169 KB
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Nuclear Chemistry
  Physical Chemistry
  Nuclear Physics, Heavy Ions and Hadrons
  Diagnostic Radiology
  Inorganic Chemistry
  
• 出版者：Akad茅miai Kiad贸, co-published with Springer Science+Business Media B.V., Formerly Kluwer Academic
• ISSN：1588-2780

文摘

The goal of the present work was to determine the concentration of 23 elements by instrumental neutron activation analysis in rock samples from the vicinity of Itingussú River, in order to investigate the contribution of trace and major elements from the local lithology to the river basin. The Itingussú River Basin ends in a mangrove area not yet largely impacted by antropogenic activities. So far, there are no data for the concentration of trace elements in that region, even though these data are important to the understanding of the influence of the rocks on the composition of the mangrove sediments. The results showed some enrichment of Th and some light rare earths, probably because of the presence of the mineral allanite and other accessory minerals, as identified by petrographic analysis.