文章基本信息

标题：Geochemistry of marine sediments of the Brazilian Northeastern continental shelf
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作者：Nascimento, Fernanda Souza do ; Freire, George Satander Sá ; Miola, Brígida 等
期刊名称：Brazilian Journal of Oceanography
印刷版ISSN：1679-8759
电子版ISSN：1982-436X
出版年度：2010
卷号：58
期号：spe2
页码：1-11
DOI：10.1590/S1679-87592010000600002
出版社：Instituto Oceanográfico da Universidade de São Paulo
摘要：Br (0.04 %) in the samples.There was no correlation between CaCO3 and chemical contents and grain size with depth and bio-components.With the exception of Sr of marine origin, all other elements (P, S, Br, Cl, Fe) are of continental origin.The lithothamnium of some offshore samples shows higher CaCO3 content, while Mg and Na are present only in halimedas.Bioclastic sands contain no Br, and silt and clay fractions are rare and characterize samples closer to the coast.These marine bioclastic granulates are of very pure biogenic calcium carbonates and are thus highly to be recommended for economic purposes.
关键词：carbonato de cálcio marinho;geoquímica;plataforma continental;Brasil
其他关键词：marine sediments;biogenic CaCO3;geochemistry;continental shelf;Brazil