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Radiochimica Acta

International Journal for chemical aspects of nuclear science and technology

Editor-in-Chief: Qaim, Syed M.

IMPACT FACTOR 2017: 1.202

CiteScore 2017: 1.22

SCImago Journal Rank (SJR) 2017: 0.409
Source Normalized Impact per Paper (SNIP) 2017: 0.869

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Volume 98, Issue 7


Selected trace and minor elements in sandstones from Paraguay

J. F. Facetti-Masulli / P. Kump / E. González
Published Online: 2010-07-08 | DOI: https://doi.org/10.1524/ract.2010.1734


Selected trace and minor elements analyzed by XRF in sandstone samples were Rb-Sr-Zr-Nb-Ba-La-Ce-Nd as well as Ti-Mn-Fe with which they are often correlated. Refractory elements like REE are considered useful indicators of geochemical processes and, in this case, of provenance . Usually they maintain their original relationships and are transferred almost directly into sediments. The values here found, absolute and normalized, show correlations among the samples, allowing the establishment of their origin. Most of them in the spidergram patterns display positive spikes of Zr, and negative anomalies at Nb, Sr, Ti: differences in their height/depth could be in relation with the different Series or Formations. Strikingly, spidergrams of samples collected from the Patiño Formation show marked negative anomalies interalia of Ba, as well as positive spikes of Nb and Zr, very similar to those found in magmatic specimens from Misiones, Carapeguá-Acahay and Alto Paraguay Province and quite different from the other analyzed samples. In addition a remarkable presence of Precambrian signatures were found in the analyzed sandstones from the Paleozoic.

Keywords: Eastern-Paraguay; Sandstones; LREE; Refractories; Spidergrams

About the article

* Correspondence address: Comisión Nacional de Energía Atómica and Universidad Nacional de Asunción, Asunción, Paraguay,

Published Online: 2010-07-08

Published in Print: 2010-07-01

Citation Information: Radiochimica Acta International journal for chemical aspects of nuclear science and technology, Volume 98, Issue 7, Pages 441–446, ISSN (Print) 0033-8230, DOI: https://doi.org/10.1524/ract.2010.1734.

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