Campo magnético da Terra pode ser explicado por super- resfriamento do núcleo

A mais de cinco mil km abaixo da superfície, o núcleo da Terra é uma esfera sólida composta por ferro e níquel.

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Ele desempenha um papel crucial na sustentação da vida.

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Sem ele, as condições na superfície seria extremamente diferentes.

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Segundo pesquisas, o núcleo interno é o responsável pela geração do campo magnético da Terra.

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Durante sua solicitação, elementos como oxigênio e carbono que não se misturam bem com um sólido quente são expulsos.

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Isso cria um líquido quente e menos denso na base do núcleo externo.

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Esse líquido Ascende e se mistura com o restante do núcleo externo, gerando correntes elétricas que produzem o campo magnético da Terra.

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