Resumen
A paleoceanografia representa uma abordagem multidisciplinar que reúne esforços no intuito de reconstruir a história dos oceanos pretéritos e os efeitos das interações entre as variações na composição, circulação e produtividade nas grandes massas d’água e as mudanças climáticas. Além do interesse pelo passado, a paleoceanografia assume um caráter vanguardista quando se trata de realizar prognósticos de mudanças climáticas futuras. Nesse contexto, os foraminíferos planctônicos, além da sua abundância e ampla distribuição geográfica, armazenam em suas testas a composição das águas onde viveram, registrando as condições físico-químicas das massas d’água. Idade, temperatura e produtividade estão entre os parâmetros que podem ser inferidos por meio do estudo das associações e da composição das carapaças destes organismos. Esse trabalho tem como objetivo apresentar a aplicação de métodos isotópicos e numéricos em paleoceanografia utilizando foraminíferos planctônicos como ferramenta de trabalho.
Citas
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