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the claim
There are locations where the sea floor descends into the mantle of the Earth
the verdict
SUPPORTED
the evidence backs this
refutedsupported
the weight of evidence
6 sources for · 0 against

Abundant geological and seismological evidence confirms that at subduction zones, tectonic plates descend from the sea floor into the Earth's mantle.

Evidence for · 6
The Taitao Ophiolite-Granite Complex, Chile: Emplacement of Ridge-Trench Intersection Oceanic Lithosphere on Land and Origin of Calc-Alkaline I-Type Granites
2015 · cited by 13
Discusses the subduction of an oceanic ridge beneath the South American plate.
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The analysis

The claim states that there are locations where the sea floor descends into the mantle of the Earth, which describes tectonic subduction zones. Multiple provided papers (e.g., [0], [1], [3], [5], [6], [11]) explicitly discuss oceanic plates and slabs descending into the Earth's mantle at various trenches and subduction zones around the globe. Therefore, the claim is strongly supported by the evidence.

More for · 5
Subduction Dynamics and Mantle Pressure: 2. Towards a Global Understanding of Slab Dip and Upper Mantle Circulation
2020 · cited by 12
Investigates global subduction zones and the dynamics of slabs descending into the upper mantle.
Lithological structure of western Pacific lithosphere reconstructed from mantle xenoliths in a petit-spot volcano
2022 · cited by 7
Examines the Pacific plate subducting into the Mariana Trench.
Catastrophic shear-removal of subcontinental lithospheric mantle beneath the Colorado Plateau by the subducted Farallon slab.
2019 · cited by 3
Analyzes the subduction of the Farallon oceanic plate beneath North America.
Geodynamic subduction models constrained by deep earthquakes beneath the Japan Sea and eastern China.
2020 · cited by 2
Details Pacific plate subduction under the Japan Sea down to ~600 km.
Seismic imaging of a basaltic Lesser Antilles slab from ancient tectonics.
2025 · cited by 1
Describes lithospheric material descending through the upper mantle to the mantle transition zone at subduction zones.
Everything we examined (12)
  1. The Taitao Ophiolite-Granite Complex, Chile: Emplacement of Ridge-Trench Intersection Oceanic Lithosphere on Land and Origin of Calc-Alkaline I-Type Granitespeer-reviewedsupports
  2. Subduction Dynamics and Mantle Pressure: 2. Towards a Global Understanding of Slab Dip and Upper Mantle Circulationpeer-reviewedsupports
  3. Trace elements in abyssal peridotite olivine record melting, thermal evolution, and melt refertilization in the oceanic upper mantlepeer-reviewedno side takennot shown: read and judged not to bear on this claim
  4. Lithological structure of western Pacific lithosphere reconstructed from mantle xenoliths in a petit-spot volcanopeer-reviewedsupports
  5. Cenozoic India-Asia collision driven by mantle dragging the cratonic root.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  6. Catastrophic shear-removal of subcontinental lithospheric mantle beneath the Colorado Plateau by the subducted Farallon slab.peer-reviewedsupports
  7. Geodynamic subduction models constrained by deep earthquakes beneath the Japan Sea and eastern China.peer-reviewedsupports
  8. Rapid shear zone weakening during subduction initiation.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  9. Unique composition and evolutionary histories of large low velocity provinces.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  10. Early arc crust formation preserved in the Grenadines archipelago, southern Lesser Antilles arc.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  11. Contemporaneous mobile- and stagnant-lid tectonics on the Hadean Earth.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  12. Seismic imaging of a basaltic Lesser Antilles slab from ancient tectonics.peer-reviewedsupports
The paper trail · every fact has a biography
first checked05 Aug 2026
judged → SUPPORTED · 8205 Aug 2026
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