Constraints from material properties on the dynamics and evolution of Earth's core
The Earth's magnetic field is powered by energy supplied by the slow cooling and freezing
of the liquid iron core. Efforts to determine the thermal and chemical history of the core have …
of the liquid iron core. Efforts to determine the thermal and chemical history of the core have …
Earth's mantle composition revealed by mantle plumes
Mantle plumes originate at depths near the core− mantle boundary (~ 2,800 km). As such,
they provide invaluable information about the composition of the deep mantle and insight …
they provide invaluable information about the composition of the deep mantle and insight …
SP12RTS: a degree-12 model of shear-and compressional-wave velocity for Earth's mantle
We present the new model SP12RTS of isotropic shear-wave (VS) and compressional-wave
(VP) velocity variations in the Earth's mantle. SP12RTS is derived using the same methods …
(VP) velocity variations in the Earth's mantle. SP12RTS is derived using the same methods …
Compositional mantle layering revealed by slab stagnation at~ 1000-km depth
Improved constraints on lower-mantle composition are fundamental to understand the
accretion, differentiation, and thermochemical evolution of our planet. Cosmochemical …
accretion, differentiation, and thermochemical evolution of our planet. Cosmochemical …
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 …
whether Earth is the only planet to exhibit thermally bi-modal volcanism—a distinctive …
Eclogites as palaeodynamic archives: evidence for warm (not hot) and depleted (but heterogeneous) Archaean ambient mantle
Some high-Mg eclogite xenoliths, entrained by kimberlites from the mantle lithospheres of
ancient continental cores, and rare orogenic eclogites and ophiolites, exhumed or obducted …
ancient continental cores, and rare orogenic eclogites and ophiolites, exhumed or obducted …
Survival of LLSVPs for billions of years in a vigorously convecting mantle: Replenishment and destruction of chemical anomaly
E Mulyukova, B Steinberger… - Journal of …, 2015 - Wiley Online Library
We study segregation of the subducted oceanic crust (OC) at the core‐mantle boundary and
its ability to accumulate and form large thermochemical piles (such as the seismically …
its ability to accumulate and form large thermochemical piles (such as the seismically …
On the cooling of a deep terrestrial magma ocean
Several episodes of complete melting have probably occurred during the first stages of the
Earth's evolution. We have developed a numerical model to monitor the thermal and melt …
Earth's evolution. We have developed a numerical model to monitor the thermal and melt …
Dynamo constraints on the long-term evolution of Earth's magnetic field strength
Elucidating the processes in the liquid core that have produced observed palaeointensity
changes over the last 3.5 Gyr is crucial for understanding the dynamics and long-term …
changes over the last 3.5 Gyr is crucial for understanding the dynamics and long-term …
The deep Earth may not be cooling down
The Earth is a thermal engine generating the fundamental processes of geomagnetic field,
plate tectonics and volcanism. Large amounts of heat are permanently lost at the surface …
plate tectonics and volcanism. Large amounts of heat are permanently lost at the surface …