Results 11 to 20 of about 24,714 (224)

Phase Diagrams of Carbonate Materials at High Pressures, with Implications for Melting and Carbon Cycling in the Deep Earth

open access: yesGeophysical Monograph Series, Page 137-165., 2020

This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.

Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions

Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Konstantin Litasov   +3 more
wiley  

+6 more sources

Was the Kalkarindji Continental Flood Basalt Province a Driver of Environmental Change at the Dawn of the Phanerozoic?

open access: yesGeophysical Monograph Series, Page 435-447., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Peter E. Marshall   +2 more
wiley  

+4 more sources

Vertical motion modeling as a result of mantle convection on the Sea of Okhotsk profile [PDF]

open access: yesГеосистемы переходных зон, 2022
Vertical motions, especially in the active continental margins such as Kuril-Kamchatka transition zone, are still pure studied. One of the factors significantly affecting the amplitudes and directions of vertical motions is mantle convections.
Rustam F. Bulgakov
doaj   +1 more source

Focused Penetrative Plumes: A Possible Consequence of the Dissociation Transition of Post‐Perovskite at ∼0.9 TPa in Massive Rocky Super‐Earths

open access: yesGeochemistry, Geophysics, Geosystems, 2021
Based on the standard view of depth‐increasing viscosity in the mantle of rocky planets, convection in the deep mantle of these planets is expected to become less likely as the size of planet increases.
M. H. Shahnas, R. N. Pysklywec
doaj   +1 more source

The impact of rheological uncertainty on dynamic topography predictions [PDF]

open access: yesSolid Earth, 2019
Much effort is being made to extract the dynamic components of the Earth's topography driven by density heterogeneities in the mantle. Seismically mapped density anomalies have been used as an input into mantle convection models to predict the present ...
Ö. F. Bodur, Ö. F. Bodur, P. F. Rey
doaj   +1 more source

Zoned mantle convection

open access: yesPhilosophical Transactions of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences, 2002
We review the present state of our understanding of mantle convection with respect to geochemical and geophysical evidence and we suggest a model for mantle convection and its evolution over the Earth's history that can reconcile this evidence. Whole-mantle convection, even with material segregated within the D" region just above the core-mantle ...
Albarède, Francis, Hilst, R.D. van der
openaire   +4 more sources

Application of the Yin-Yang grid to a thermal convection of a Boussinesq fluid with infinite Prandtl number in a three-dimensional spherical shell [PDF]

open access: yes, 2004
A new numerical finite difference code has been developed to solve a thermal convection of a Boussinesq fluid with infinite Prandtl number in a three-dimensional spherical shell.
Akira Kageyama   +21 more
core   +1 more source

Geophysical and geochemical constraints on geoneutrino fluxes from Earth's mantle [PDF]

open access: yes, 2012
Knowledge of the amount and distribution of radiogenic heating in the mantle is crucial for understanding the dynamics of the Earth, including its thermal evolution, the style and planform of mantle convection, and the energetics of the core.
Allègre   +46 more
core   +2 more sources

Rapid transition from primary to secondary crust building on the Moon explained by mantle overturn

open access: yesNature Communications, 2023
Geochronology indicates a rapid transition (tens of Myrs) from primary to secondary crust building on the Moon. The processes responsible for initiating secondary magmatism, however, remain in debate.
Tabb C. Prissel   +3 more
doaj   +1 more source

On the Scales of Dynamic Topography in Whole‐Mantle Convection Models

open access: yesGeochemistry, Geophysics, Geosystems, 2018
Mantle convection shapes Earth's surface by generating dynamic topography. Observational constraints and regional convection models suggest that surface topography could be sensitive to mantle flow for wavelengths as short as 1,000 and 250 km ...
M. Arnould   +4 more
doaj   +1 more source

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