A deep Earth layer may have primed the planet for plate tectonics.

  • Published In: Sciencemag.org, 2025. P. N.PAG 1 of 3

  • Database: Applied Science & Technology Source Ultimate 2 of 3

  • Authored By: Richter, Hannah 3 of 3

Abstract

The article discusses a new theory proposing that a deep layer in Earth's mantle transition zone may have initiated plate tectonics by releasing water-rich rocks that weakened the rigid surface rocks, allowing magma to break out. Researchers studied water content in 30-million-year-old magmas from the South China Sea, finding higher water levels than expected, suggesting a connection to the mantle transition zone. While the theory expands our understanding of plate tectonics, further research is needed to confirm its applicability to other regions and time periods. [Extracted from the article]

Additional Information

  • Source:Sciencemag.org. 2025/03, pN.PAG
  • Document Type:Article
  • Subject Area:Science
  • Publication Date:2025
  • Accession Number:183895017
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