Cientistas criam mapa global de depósitos de terras raras

26 de maio de 2026

Reportado por IA

Pesquisadores desenvolveram um mapa mundial que destaca onde é provável encontrar elementos de terras raras. O trabalho associa esses metais valiosos a características geológicas específicas nas profundezas da superfície terrestre.

Uma equipe internacional liderada pela Universidade de Cambridge produziu um mapa preditivo para depósitos de terras raras. O estudo combina dados de aproximadamente 9.000 amostras de rochas com imagens sísmicas do interior do planeta. O resultado mostra que as rochas ígneas relevantes se formam principalmente ao longo das bordas íngremes da litosfera continental mais espessa e antiga da Terra.

USGS estimates Appalachian lithium resources could offset U.S. imports for more than three centuries

11 de maio de 2026 Reportado por IA Imagem gerada por IA Verificado

The U.S. Geological Survey says the Appalachian region contains an estimated 2.3 million metric tons of undiscovered, economically recoverable lithium—an amount it calculates could replace about 328 years of U.S. lithium imports at 2024 levels.

Japan identifies significant rare earth deposits in Pacific mud

A Japanese research project has found that medium and heavy rare earth elements make up about 54 percent of the content in deep-sea mud samples collected off Minamitori Island.

Sweden researchers study rare earth deposits for sustainable magnets

24 de julho de 2026 Reportado por IA

Swedish scientists are examining the country's mineral resources to support cleaner production of rare earth elements and magnets. The effort at Uppsala University aims to reduce reliance on China and lower environmental impacts from extraction.

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U.S. discovers huge lithium reserves in Appalachia

Brazil chamber approves regulatory framework for critical minerals

Brazil's Chamber of Deputies approved a bill on Wednesday that sets rules for the exploration of critical minerals and rare earths. The text includes R$ 5 billion in incentives and a council with veto power over foreign partnerships. The vote came on the eve of a meeting between Presidents Lula and Donald Trump.

Wadephul urges rapid expansion of raw materials fund

03 de julho de 2026 Reportado por IA

Foreign Minister Johann Wadephul has called for a swift increase in the raw materials fund for rare earths after his South America trip. He met his Brazilian counterpart Mauro Vieira in Brasília.

quinta-feira, 23 de julho de 2026, 02:22h

Cientistas criam mapa global de depósitos de terras raras

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