What question did this study set out to answer?

The research aims to quantify the effects of secular cooling on mantle dynamics and heat transfer at the core-mantle boundary over geological time scales.

August 1, 2026Earth and Planetary Science LettersOpen Access

Influence of secular cooling on core-mantle boundary heat flux and mantle plume temperature over 1.8 billion years

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Authors

JZJ. ZhangUniversity of Wollongong NFNicolas FlamentUniversity of Wollongong SLS. LabrosseÉcole Normale Supérieure de Lyon

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Implication

Modeling secular cooling effects on core-mantle boundary heat flux and mantle plume temperature over 1.8 billion years, indicating significant global mantle dynamics implications.

Key Points

The research aims to quantify the effects of secular cooling on mantle dynamics and heat transfer at the core-mantle boundary over geological time scales.
Incorporated secular cooling into 3D global mantle flow models
Used plate reconstructions spanning 1.8 billion years
Assessed CMB heat flux and mantle plume temperatures based on modeled heat flow
Secular cooling reduces core-mantle boundary heat flow and globally averaged mantle plume temperature
Predicted global plume cooling rate is approximately 110°C Gyr-1, aligned with petrological data
CMB heat flux is strongly anti-correlated with the area of lower-mantle basal structures, indicating slab influence in heat transfer.

Cite This Study

Zhang et al. (2026) studied this question.

synapsesocial.com/papers/6a6d97eae258b358b3c6aba3 https://doi.org/10.1016/j.epsl.2026.120242

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Implication

Modeling secular cooling effects on core-mantle boundary heat flux and mantle plume temperature over 1.8 billion years, indicating significant global mantle dynamics implications.

Influence of secular cooling on core-mantle boundary heat flux and mantle plume temperature over 1.8 billion years

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Implication

Key Points

Cite This Study

Influence of secular cooling on core-mantle boundary heat flux and mantle plume temperature over 1.8 billion years

Discussion

Member takes

Implication

Key Points

Cite This Study

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