NDLI: Integração de dados de decaimento radiométrico de urânio: estudo de caso na região de Santa Maria (RS)

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Integração de dados de decaimento radiométrico de urânio: estudo de caso na região de Santa Maria (RS)

Content Provider	Semantic Scholar
Author	Pereira, João Eduardo Da Silva Silva, José Silvério Da Strieder, Adelir José Pires, Carlos
Copyright Year	2008
Abstract	This work consists of data integration of uranium concentrations, parts per million (ppm), associated to the different rock formations belonging to Parana Basin in the region of Santa Maria, in the Rio Grande do Sul state southern Brazil. This study was developed from primary data generated by the Companhia de Pesquisas de Recursos Minerais as part of the AERO/Camaqua; Project, 1010 code series, digitalized in the 1997 Geosoft XYZ format. Through an irregular net of values of uranium concentration, with 25806 observations were spatially oriented by Universal Transverse Mercator/UTM coordinates. Which were varied from west to east 206190 to 276813 E, and from north to south 6670888 to 6735665 N, totalizing an area of 4574.75 km 2 . Using Statistica 7.1 software licensed to the Department of Statistics at the Federal University of Santa Maria, the mean values of and the confidence limits with α = 0.05, the standard deviations of uranium concentrations for each rock formation. The comparisons between the mean values were made through the Tuckey’s Test and the spatial variation of the concentrations in relation to the geographical coordinates were adjusted to a polynomial model. The results obtained showed that the uranium concentrations occur in a distinct way in the different geological formations studied (aluvionar unconsolitaded sediments, sandstones and igneous volcanic acid and basic rocks). The uranium variable, when spatialized in relation to the geographical coordinates UTM were adjusted to a second order polynomial model.
Starting Page	577
Ending Page	585
Page Count	9
File Format	PDF HTM / HTML
DOI	10.5327/rbg.v38i3.1418
Volume Number	38
Alternate Webpage(s)	http://ppegeo.igc.usp.br/index.php/rbg/article/download/7608/7035
Alternate Webpage(s)	https://doi.org/10.5327/rbg.v38i3.1418
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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