Uranium and thorium isotopes in the rive
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Aguinaldo N. Marques Jr.; Iyad Al-Gharib; Michel Bernat; FranΓ§ois Fernex
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Article
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2002
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John Wiley and Sons
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English
β 166 KB
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## Abstract Two expeditions (October 1989 and May 1992) were carried out to two points of the main Amazon River channel and four tributaries. The SolimΓ΅es and Madeira rivers, taking their origin in the Andes, are whitewater rivers. The Negro River is a typical acid, blackwater river. The Trombetas