Isotopes, DUPAL, LLSVPs, and anekantavada

WM White - Chemical Geology, 2015 - Elsevier
The mantle perspective provided by radiogenic isotope geochemistry has evolved over the
last 40 years. Although the idea of an upper mantle depleted in incompatible elements by …

The redox geodynamics linking basalts and their mantle sources through space and time

F Gaillard, B Scaillet, M Pichavant, G Iacono-Marziano - Chemical Geology, 2015 - Elsevier
The Earth's mantle redox state regulates the fate and transfer of metals by magmatism,
buffers the igneous inputs of volcanic gases in the atmosphere and controls the depth of …

[HTML][HTML] Can we constrain the interior structure of rocky exoplanets from mass and radius measurements?

C Dorn, A Khan, K Heng, JAD Connolly… - Astronomy & …, 2015 - aanda.org
Aims. We present an inversion method based on Bayesian analysis to constrain the interior
structure of terrestrial exoplanets, in the form of chemical composition of the mantle and core …

Core formation and core composition from coupled geochemical and geophysical constraints

J Badro, JP Brodholt, H Piet… - Proceedings of the …, 2015 - National Acad Sciences
The formation of Earth's core left behind geophysical and geochemical signatures in both
the core and mantle that remain to this day. Seismology requires that the core be lighter than …

Planetary and meteoritic Mg/Si and δ30Si variations inherited from solar nebula chemistry

N Dauphas, F Poitrasson, C Burkhardt… - Earth and Planetary …, 2015 - Elsevier
The bulk chemical compositions of planets are uncertain, even for major elements such as
Mg and Si. This is due to the fact that the samples available for study all originate from …

Exotic crust formation on Mercury: Consequences of a shallow, FeO‐poor mantle

KE Vander Kaaden… - Journal of Geophysical …, 2015 - Wiley Online Library
The range in density and compressibility of Mercurian melt compositions was determined to
better understand the products of a possible Mercurian magma ocean and subsequent …

[HTML][HTML] Elemental ratios in stars vs planets

A Thiabaud, U Marboeuf, Y Alibert, I Leya… - Astronomy & …, 2015 - aanda.org
Context. The chemical composition of planets is an important constraint for planet formation
and subsequent differentiation. While theoretical studies try to derive the compositions of …

The feeding zones of terrestrial planets and insights into Moon formation

NA Kaib, NB Cowan - Icarus, 2015 - Elsevier
The final stage of terrestrial planet formation consists of several hundred approximately
lunar mass bodies accreting into a few terrestrial planets. This final stage is stochastic …

Thermally dominated deep mantle LLSVPs: a review

DR Davies, S Goes, HCP Lau - The Earth's Heterogeneous Mantle: A …, 2015 - Springer
The two large low shear-wave velocity provinces (LLSVPs) that dominate lower-mantle
structure may hold key information on Earth's thermal and chemical evolution. It is generally …

In search of late-stage planetary building blocks

RJ Walker, K Bermingham, J Liu, IS Puchtel… - Chemical …, 2015 - Elsevier
Genetic contributions to the final stages of planetary growth, including materials associated
with the giant Moon-forming impact, late accretion, and late heavy bombardment are …