The role of water in Earth's mantle

E Ohtani - National Science Review, 2020 - academic.oup.com
Geophysical observations suggest that the transition zone is wet locally. Continental and
oceanic sediment components together with the basaltic and peridotitic components might …

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 …

Adiabatic temperature profile in the mantle

T Katsura, A Yoneda, D Yamazaki, T Yoshino… - Physics of the Earth and …, 2010 - Elsevier
The temperature at the 410-km discontinuity is re-evaluated by comparing the depth of the
discontinuity with the olivine–wadsleyite transition pressure obtained using in situ X-ray …

Ambient and excess mantle temperatures, olivine thermometry, and active vs. passive upwelling

KD Putirka, M Perfit, FJ Ryerson, MG Jackson - Chemical Geology, 2007 - Elsevier
Mantle temperatures provide a key test of the mantle plume hypothesis, and olivine-liquid
equilibria provide perhaps the most certain means of estimating mantle temperatures. Here …

Primary magmas and mantle temperatures through time

J Ganne, X Feng - Geochemistry, Geophysics, Geosystems, 2017 - Wiley Online Library
Chemical composition of mafic magmas is a critical indicator of physicochemical conditions,
such as pressure, temperature, and fluid availability, accompanying melt production in the …

Thermoelastic Properties of -Perovskite: Insights on the Nature <?format ?>of the Earth's Lower Mantle

RM Wentzcovitch, BB Karki, M Cococcioni… - Physical review …, 2004 - APS
We have determined by means of first principles quasiharmonic calculations the elastic
constants and acoustic velocities of M g S i O 3 perovskite, the most abundant mineral of the …

A model for C–O–H fluid in the Earth's mantle

C Zhang, Z Duan - Geochimica et Cosmochimica Acta, 2009 - Elsevier
A model is presented for predicting the composition (H2O, CO2, CH4, H2, CO, O2 and
C2H6) in the C–O–H fluid system under high temperatures and pressures found in the …

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 …

The elastic constants of MgSiO3 perovskite at pressures and temperatures of the Earth's mantle

AR Oganov, JP Brodholt, GD Price - Nature, 2001 - nature.com
The temperature anomalies in the Earth's mantle associated with thermal convection can be
inferred from seismic tomography, provided that the elastic properties of mantle minerals are …

On the consistency of seismically imaged lower mantle slabs

GE Shephard, KJ Matthews, K Hosseini, M Domeier - Scientific reports, 2017 - nature.com
The geoscience community is increasingly utilizing seismic tomography to interpret mantle
heterogeneity and its links to past tectonic and geodynamic processes. To assess the …