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the claim

Remnants of the Farallon plate have remained stable inside the Earth's mantle

the verdict
SUPPORTED
the evidence backs this
Recorded sources
4 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that Remnants of the Farallon plate have remained stable inside the Earth's mantle?

Yes. Multiple seismic tomography and waveform inversion studies confirm that remnants of the subducted Farallon plate persist deep within the Earth's mantle, including the lower mantle and near the core-mantle boundary.

Verdict: SUPPORTED · 4 sources for, 0 against · Last checked

The analysis

The retrieved papers consistently use seismic tomography and waveform inversions to image subducted Farallon plate material in the lower mantle and deep interior, supporting the claim with multiple independent lines of evidence and no dissenting sources.

Evidence for · 4
Understanding seismic heterogeneities in the lower mantle beneath the Americas from seismic tomography and plate tectonic history
2007
Tomographic and plate motion models associate fast seismic anomalies in the lower mantle with the subducted Farallon plate.
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Ren, Y., Stutzmann, E., Hilst, R. D. v. d., & Besse, J. (2007). Understanding seismic heterogeneities in the lower mantle beneath the Americas from seismic tomography and plate tectonic history. doi.org. https://doi.org/10.1029/2005jb004154

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More for · 3
Lower Mantle Substructure Embedded in the Farallon Plate: The Hess Conjugate
2017
Seismic waveform inversions reveal high-velocity slab-like anomalies in the lower mantle beneath the U.S. linked to the Farallon plate.
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Ko, J. Y., Helmberger, D. V., Wang, H., & Zhan, Z. (2017). Lower Mantle Substructure Embedded in the Farallon Plate: The Hess Conjugate. doi.org. https://doi.org/10.1002/2017gl075032

Seismic evidence for subduction-induced mantle flows underneath Middle America.
2020
Seismic models identify the Farallon anomaly dominating the transition zone and uppermost lower mantle.
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H, Z., RJ, S., & J, Y. (2020). Seismic evidence for subduction-induced mantle flows underneath Middle America.. doi.org. https://doi.org/10.1038/s41467-020-15492-6

Imaging paleoslabs in the D″ layer beneath Central America and the Caribbean using seismic waveform inversion.
2017
Seismic waveform inversions image paleoslabs just above the core-mantle boundary beneath Central America and the Caribbean, interpreted as long-subducted Farallon plate remnants.
Get citation
AFE, B., K, K., K, K., & RJ, G. (2017). Imaging paleoslabs in the D″ layer beneath Central America and the Caribbean using seismic waveform inversion.. doi.org. https://doi.org/10.1126/sciadv.1602700

What does the evidence say?

The retrieved papers consistently use seismic tomography and waveform inversions to image subducted Farallon plate material in the lower mantle and deep interior, supporting the claim with multiple independent lines of evidence and no dissenting sources.

Receipt History
first checked04 Aug 2026
judged → SUPPORTED · 8704 Aug 2026
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