trustmebro.to/r/…
✓ checked
trust me, bro:
here is the receipt.
the claim

The viscosity of the Earth's mantle spans several orders of magnitude

the verdict
SUPPORTED
the evidence backs this
Recorded sources
2 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 the viscosity of the Earth's mantle spans several orders of magnitude?

Yes. Geophysical studies and postseismic deformation analyses confirm that the Earth's mantle viscosity spans multiple orders of magnitude, ranging from approximately 10^17 to over 10^22 Pa·s depending on region, depth, and temperature.

Verdict: SUPPORTED · 2 sources for, 0 against · Last checked

The analysis

The claim states that the viscosity of the Earth's mantle spans several orders of magnitude. Papers [2] and [6] provide explicit numerical estimates of mantle viscosity across different regions and depths, demonstrating a range from 10^17 Pa·s up to greater than 10^22 Pa·s (a span of five orders of magnitude). Therefore, the claim is strongly supported by the evidence.

Evidence for · 2
Spatiotemporal Variation of Mantle Viscosity and the Presence of Cratonic Mantle Inferred From 8 Years of Postseismic Deformation Following the 2010 Maule, Chile, Earthquake
2018
Get citation
Li, S., Bedford, J., Moreno, M., Barnhart, W., Rosenau, M., & Oncken, O. (2018). Spatiotemporal Variation of Mantle Viscosity and the Presence of Cratonic Mantle Inferred From 8 Years of Postseismic Deformation Following the 2010 Maule, Chile, Earthquake. doi.org. https://doi.org/10.1029/2018GC007645

See more details
More for · 1
A Common Diffusional Mechanism for Creep and Grain Growth in Polymineralic Rocks: Application to Lower Mantle Viscosity Estimates
2024
Get citation
Okamoto, A. & Hiraga, T. (2024). A Common Diffusional Mechanism for Creep and Grain Growth in Polymineralic Rocks: Application to Lower Mantle Viscosity Estimates. doi.org. https://doi.org/10.1029/2023JB027803

Related receipts
Receipt History
first checked05 Aug 2026
judged → SUPPORTED · 7205 Aug 2026
Anyone with this link can read the claim and its public receipt, including any personal information in that text. Open permanent receipt.
Check your own claim
Challenge the receipt
Requests are recorded for review. This does not start an automatic check or guarantee a response time.

See the evidence timeline

Citation formatting by citeproc-js (Frank Bennett) and the Citation Style Language project. Source and licenses.

This receipt is an automated verdict against our published method · not an opinion about any author or publication.
Terms · Privacy · How verdicts work