Articles | Volume 12, issue 9
https://doi.org/10.5194/se-12-2087-2021
https://doi.org/10.5194/se-12-2087-2021
Research article
 | 
14 Sep 2021
Research article |  | 14 Sep 2021

Coupled dynamics and evolution of primordial and recycled heterogeneity in Earth's lower mantle

Anna Johanna Pia Gülcher, Maxim Dionys Ballmer, and Paul James Tackley

Video supplement

Coupled dynamics and evolution of primordial and recycled heterogeneity in Earth's lower mantle - Supplementary Videos Anna J. P. Gülcher https://doi.org/10.5281/zenodo.4767426

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Short summary
The lower mantle extends from 660–2890 km depth, making up > 50 % of the Earth’s volume. Its composition and structure, however, remain poorly understood. In this study, we investigate several hypotheses with computer simulations of mantle convection that include different materials: recycled, dense rocks and ancient, strong rocks. We propose a new integrated style of mantle convection including piles, blobs, and streaks that agrees with various observations of the deep Earth.