Listar Ciencias Exactas y Naturales por autor "Kawashita, Koji"
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Razões isotópicas 87Rb/86Sr, 87Sr/86Sr e 143Nd/144Nd como traçadores de proveniência de rochas sedimentares siliclásticas: exemplos no Grupo Camaquã(Paleozóico interior; RS, Brasil)
Borba, Andre Weissheimer de; Mizusaki, Ana Maria Pimentel; Silva, Diogo Rodrigues Andrade da; Kawashita, Koji (2003) [Artículo de periódico]The Rb-Sr and Sm-Nd isotopic systems are ideal in constraining the provenance of fine-grained clastic rocks. This is particularly true for continental, fluvio-lacustrine, sedimentary units deposited under semi-arid climate ... -
Rb-Sr systematics of holocene pelitic sediments and their bearing on whole-rock dating
Cordani, Umberto Giuseppe; Mizusaki, Ana Maria Pimentel; Kawashita, Koji; Thomaz Filho, Antonio (2004) [Artículo de periódico]In many cases, when dealing with argillaceous fine-grained sedimentary rocks, the isotopic ages obtained from Rb–Sr whole-rock isochron calculations are of geological significance, despite the fact that the initial conditions ...