Scientists Reveal Hidden Mantle Superhighways Beneath Tonga
A breakthrough study has provided the most detailed 3D look yet at the inner workings of the Tonga Subduction Zone, where ...
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Researchers propose new step in tectonic squeeze that turns seafloor into mountains
This theory of oceanic magma mixing is important because it could represent a transitional step in the formation of back arc basins—an important geological structure that shapes landscapes ...
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Advanced seismic imaging deciphers mantle dynamics beneath Tonga subduction zone
High-Resolution Anisotropic Tomography Reveals Mantle Flow Complexity and Slab-Plume Interactions, Redefining Subduction Zone ...
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Tony Barresi
Two geochemically distinct types of tholeiitic basalts are present; both resemble back-arc basin basalts formed by melting of asthenospheric and sub-arc mantle sources. Group 1 is isotopically more ...