Dynamics and evolution of the deep mantle resulting from thermal, chemical, phase and melting effects

PJ Tackley - Earth-Science Reviews, 2012 - Elsevier
The core–mantle boundary (CMB)–the interface between the silicate mantle and liquid iron
alloy outer core–is the most important boundary inside our planet, with processes occurring …

Globally distributed subducted materials along the Earth's core-mantle boundary: Implications for ultralow velocity zones

SE Hansen, EJ Garnero, M Li, SH Shim, S Rost - Science Advances, 2023 - science.org
Ultralow velocity zones (ULVZs) are the most anomalous structures within the Earth's
interior; however, given the wide range of associated characteristics (thickness and …

[PDF][PDF] Energetics of the core

F Nimmo - Treatise on geophysics, 2007 - es.ucsc.edu
This chapter reviews theoretical approaches to calculating the energy and entropy budgets
of the Earth's core. The energy budget allows the growth of the inner core with time to be …

Thermal evolution of the core with a high thermal conductivity

S Labrosse - Physics of the Earth and Planetary Interiors, 2015 - Elsevier
The rate at which heat is extracted across the core mantle boundary (CMB) is constrained by
the requirement of dynamo action in the core. This constraint can be computed explicitly …

Simulating the thermochemical magmatic and tectonic evolution of Venus's mantle and lithosphere: Two‐dimensional models

M Armann, PJ Tackley - Journal of Geophysical Research …, 2012 - Wiley Online Library
Numerical convection models of the thermochemical evolution of Venus are compared to
present‐day topography and geoid and recent resurfacing history. The models include …

Rates and styles of planetary cooling on Earth, Moon, Mars, and Vesta, using new models for oxygen fugacity, ferric-ferrous ratios, olivine-liquid Fe-Mg exchange, and …

K Putirka - American Mineralogist, 2016 - pubs.geoscienceworld.org
Mantle potential temperatures (T p) provide insights into mantle circulation and tests of
whether Earth is the only planet to exhibit thermally bi-modal volcanism—a distinctive …

Core origin of seismic velocity anomalies at Earth's core–mantle boundary

S Fu, S Chariton, VB Prakapenka, SH Shim - Nature, 2023 - nature.com
Seismic studies have found fine-scale anomalies at the core–mantle boundary (CMB), such
as ultralow velocity zones (ULVZs), and the core rigidity zone,. ULVZs have been attributed …

Melting of subducted basalt at the core-mantle boundary

D Andrault, G Pesce, MA Bouhifd, N Bolfan-Casanova… - Science, 2014 - science.org
The geological materials in Earth's lowermost mantle control the characteristics and
interpretation of seismic ultra–low velocity zones at the base of the core-mantle boundary …

Mantle dynamics in super-Earths: Post-perovskite rheology and self-regulation of viscosity

PJ Tackley, M Ammann, JP Brodholt, DP Dobson… - Icarus, 2013 - Elsevier
The discovery of extra-solar “super-Earth” planets with sizes up to twice that of Earth has
prompted interest in their possible lithosphere and mantle dynamics and evolution. Simple …

[HTML][HTML] The tectonics and volcanism of Venus: New modes facilitated by realistic crustal rheology and intrusive magmatism

J Tian, PJ Tackley, DL Lourenço - Icarus, 2023 - Elsevier
To explain Venus' young surface age and lack of plate tectonics, Venus' tectonic regime has
often been proposed to be either an episodic-lid regime with global lithospheric overturns, or …