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Sunken worlds under the Pacific? High-res models reveal workings of Earth's mantle
More information: Thomas L. A. Schouten et al, Full-waveform inversion reveals diverse origins of lower mantle positive wave speed anomalies, Scientific Reports (2024). DOI: 10.1038/s41598-024-77399-2 ...
Seismic anisotropy in the deep mantle could partly be derived from the deformation of hydrous phase D
In the uppermost lower mantle, seismic anisotropy is ubiquitous near subducting slabs, where shear waves with horizontal ...
EurekAlert!3y
Lower Mantle Minerals (IMAGE)
Crystal structures of major mineral phases composing the Earth's deep mantle, (Mg,Fe)SiO3 bridgmanite (Brg), its high-pressure phase post-perovskite (PPv), CaSiO3 perovskite, and (Mg,Fe ...
EurekAlert!1y
MFM simulation of the canonical Moon-Forming giant impact (VIDEO)
Here different colors trace different components of Gaia and Theia. The lower mantle of Gaia, denoted by the dashed circle with a radius of 0.8 Earth radii (RE), is only marginally contaminated by ...
University of Bristol3y
The fate of carbonate in oceanic crust subducted into earth's lower mantle
Drewitt, J. W. E., Walter, M. J., Zhang, H., McMahon, S. C., Edwards, D., Heinen, B. J., Lord, O. T., Anzellini, S., & Kleppe, A. K. (2019). The fate of carbonate in ...