M
Maxim D. Ballmer
Researcher at University College London
Publications - 80
Citations - 1938
Maxim D. Ballmer is an academic researcher from University College London. The author has contributed to research in topics: Mantle (geology) & Lithosphere. The author has an hindex of 22, co-authored 62 publications receiving 1422 citations. Previous affiliations of Maxim D. Ballmer include University of Hawaii at Manoa & ETH Zurich.
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Ponded melt at the boundary between the lithosphere and asthenosphere
Tatsuya Sakamaki,Akio Suzuki,Eiji Ohtani,Hidenori Terasaki,Satoru Urakawa,Yoshinori Katayama,Ken-ichi Funakoshi,Yanbin Wang,John Hernlund,Maxim D. Ballmer +9 more
TL;DR: In this article, the boundary between Earth's rigid lithosphere and ductile asthenosphere is marked by a seismic discontinuity, and it is shown that melts should pond at pressures that correspond to the lithosphere-asthenosphere boundary.
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Persistence of strong silica-enriched domains in the Earth’s lower mantle
Maxim D. Ballmer,Maxim D. Ballmer,Christine Houser,John Hernlund,Renata M. Wentzcovitch,Renata M. Wentzcovitch,Renata M. Wentzcovitch,Kei Hirose +7 more
TL;DR: In this paper, the authors use geodynamic models to show that large-scale heterogeneity associated with a 20-fold change in viscosity, such as due to the dominance of intrinsically strong (Mg, Fe)SiO3-bridgmanite in low-Mg/Si domains, is sufficient to prevent efficient mantle mixing, even on large scales.
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Spatial and temporal variability in Hawaiian hotspot volcanism induced by small-scale convection
TL;DR: In this paper, a numerical model of mantle plume upwelling under Hawaii is presented, showing that small-scale convection in the ambient mantle can erode the base of the lithosphere, creating a washboard topography on the underside of the plate.
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Compositional mantle layering revealed by slab stagnation at ~1000-km depth.
TL;DR: This study reconciles cosmochemical and geophysical constraints using the stagnation of some slab segments at ~1000-km depth as the key observation and shows that lower-mantle enrichment in intrinsically dense basaltic lithologies can render slabs neutrally buoyant in the uppermost lower mantle.
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Non‐hotspot volcano chains originating from small‐scale sublithospheric convection
TL;DR: In this article, small-scale sublithospheric convection (SSC) was used to predict the seafloor age at which volcanism first occurs is sensitive to mantle temperature, as higher temperatures increase the onset age of SSC.