Urey ratio and the structure and evolution of Earth's mantle

J Korenaga - Reviews of Geophysics, 2008 - Wiley Online Library
The Urey ratio describes the contribution of internal heat production to planetary‐scale
energy balance, and knowing this thermal budget for Earth is essential to understand its …

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 …

Postperovskite phase transition and its geophysical implications

K Hirose - Reviews of Geophysics, 2006 - Wiley Online Library
The stability of (Mg, Fe) SiO3 perovskite in the deep lower mantle has long been uncertain.
Recently, a phase transition from perovskite to postperovskite was discovered through a …

Reduced radiative conductivity of low-spin (Mg, Fe) O in the lower mantle

AF Goncharov, VV Struzhkin, SD Jacobsen - Science, 2006 - science.org
Optical absorption spectra have been measured at pressures up to 80 gigapascals (GPa) for
the lower-mantle oxide magnesiowüstite (Mg, Fe) O. Upon reaching the high-spin to low …

Mantle dynamics with pressure-and temperature-dependent thermal expansivity and conductivity

N Tosi, DA Yuen, N de Koker… - Physics of the Earth and …, 2013 - Elsevier
In numerical simulations of mantle convection it is commonly assumed that the coefficients of
thermal expansion α and thermal conduction k are either constant or pressure-dependent …

Intermediate-spin ferrous iron in lowermost mantle post-perovskite and perovskite

JF Lin, H Watson, G Vankó, EE Alp, VB Prakapenka… - Nature …, 2008 - nature.com
Iron-bearing silicate post-perovskite and perovskite are believed to be the dominant
minerals of the lowermost mantle and the lower mantle, respectively. The electronic spin …

Optical absorption and radiative thermal conductivity of silicate perovskite to 125 gigapascals

H Keppler, LS Dubrovinsky, O Narygina, I Kantor - Science, 2008 - science.org
Mantle convection and plate tectonics are driven by the heat flow from Earth's core to the
surface. The radiative contribution to heat transport is usually assumed to be negligible …

Heat fluxes at the Earth's surface and core–mantle boundary since Pangea formation and their implications for the geomagnetic superchrons

N Zhang, S Zhong - Earth and Planetary Science Letters, 2011 - Elsevier
The Earth's surface and core–mantle boundary (CMB) heat fluxes are controlled by mantle
convection and have important influences on Earth's thermal evolution and geodynamo …

General approach for studying first-order phase transitions at low temperatures

CE Fiore, MGE da Luz - Physical Review Letters, 2011 - APS
By combining different ideas, a general and efficient protocol to deal with discontinuous
phase transitions at low temperatures is proposed. For small T's, it is possible to derive a …

The postperovskite transition

SH Shim - Annu. Rev. Earth Planet. Sci., 2008 - annualreviews.org
The discovery of the postperovskite (PPv) transition has profound impact on our
understanding of the core-mantle boundary (CMB) region. Unlike perovskite (Pv), the PPv …