Novas evidências apontam para fenda tectônica emergente na Zâmbia

12 de maio de 2026

Reportado por IA

Gases de fontes termais na região central da Zâmbia mostram sinais de fluidos do manto subindo à superfície, sugerindo uma fenda continental em estágio inicial. Pesquisadores afirmam que isso pode marcar o início de um novo limite de placa tectônica. As descobertas provêm de amostras coletadas na Fenda de Kafue.

A Fenda de Kafue faz parte de uma zona de 2500 quilômetros que se estende da Tanzânia à Namíbia. Geólogos notaram há muito tempo sua baixa gravidade, alto calor subterrâneo e pequenos terremotos, mas até agora faltavam provas diretas de atividade profunda. A análise de isótopos de hélio e carbono de cinco fontes termais e três poços corresponde a assinaturas provenientes de até 190 quilômetros abaixo da crosta.

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