1983
DOI: 10.1016/0375-6742(83)90080-8
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Rock classification by characteristics of aerial gamma-ray measurements

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Cited by 113 publications
(69 citation statements)
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“…The mean and median uranium concentrations from the in-situ data fall between the average values for continental crust and granite, as reported above. Comparing the in-situ measurements with the average data reported by Galbraith and Saunders (1983) and Taylor (1964), it appears the uranium concentration in the surface soils surrounding many of the creeks closely resemble the expected (average) values for similar geologic materials. The range of values that we report for the in-situ eU in soil are similar to the ex-situ 238 U concentrations measured in sediment.…”
Section: In-situ Uranium Measurementssupporting
confidence: 68%
See 1 more Smart Citation
“…The mean and median uranium concentrations from the in-situ data fall between the average values for continental crust and granite, as reported above. Comparing the in-situ measurements with the average data reported by Galbraith and Saunders (1983) and Taylor (1964), it appears the uranium concentration in the surface soils surrounding many of the creeks closely resemble the expected (average) values for similar geologic materials. The range of values that we report for the in-situ eU in soil are similar to the ex-situ 238 U concentrations measured in sediment.…”
Section: In-situ Uranium Measurementssupporting
confidence: 68%
“…The mean and median eU concentrations were 40 Bq kg -1 and 41 Bq kg -1 . Galbraith and Saunders (1983) and Taylor (1964) , respectively. Additionally, Taylor (1964) reported an average uranium concentration in continental crust of 2.7 ppm (corresponding to an eU concentration of 33 Bq kg -1 ).…”
Section: In-situ Uranium Measurementsmentioning
confidence: 99%
“…O conteúdo de tório nas rochasígneas, assim como de urânio e potássio, cresce com o aumento da concentração de sílica durante a diferenciação e a cristalização magmática, muito embora ele não acompanhe as concentrações de urânio e potássio nos processos tardios de alteração hidrotermal (Galbraith & Saunders, 1983;Shives et al, 2000).…”
Section: Características Geoquímicas Do Tóriounclassified
“…Fatores externos como relevo, vegetação, solos e umidade (Galbraith & Saunders, 1983;Minty, 1997;Wilford et al, 1997;Ulbricht et al, 2009), além da interferência antropogênica, como o uso de fertilizantes em solos agrícolas (Becegato & Ferreira, 2005;Becegato et al, 2008), podem alterar as concentrações e as distribuições naturais de radionuclídeos na paisagem, dificultando a interpretação e obtenção de resultados significativos.…”
Section: Introductionunclassified
“…A aerogamaespectrometriaé rotineiramente utilizada em atividades de mapeamento geológico (Ferreira, 1997;Santos et al, 1999;Oliveira et al, 2001;Dantas et al, 2003), na exploração mineral de variados tipos de mineralização (Saunders et al, 1993;Pires, 1995;Shives et al, 2000;Pascholati et al, 2003) e na caracterização e classificação de rochas graníticas (Galbraith & Saunders, 1983;Portnov, 1987;Maurice & Charbonneau, 1987;Ferreira et al, 2009;Ulbricht et al, 2009).…”
Section: Introductionunclassified