Results 51 to 60 of about 45,633 (206)
Science Potential of a Deep Ocean Antineutrino Observatory [PDF]
, 2006 This paper presents science potential of a deep ocean antineutrino observatory under development at Hawaii. The observatory design allows for relocation from one site to another.
Aharmin +23 more
core +2 more sources
The case for dynamic subsidence of the U.S. east coast since the Eocene [PDF]
, 2008 The dynamic subsidence of the United States east coast is addressed using the discrepancy between regional and global estimates of sea level, elevation of paleoshorelines, and adjoint models of mantle convection that assimilate plate motions and seismic ...
Gurnis, Michael +3 more
core +1 more source
Ancient recycled lower crust in the mantle source of recent Italian magmatism
Nature Communications, 2019 Recycling of Earth’s crust through subduction and delamination contributes to mantle heterogeneity. Here, the authors measure coupled Sr-Nd-Pb isotope compositions of melt inclusions in Italian potassium-rich lavas, they suggest their results indicate a ...
Janne M. Koornneef +4 more
doaj +1 more source
Subduction to the lower mantle – a comparison between geodynamic and tomographic models [PDF]
Solid Earth, 2012 It is generally believed that subduction of lithospheric slabs is a major contribution to thermal heterogeneity in Earth's entire mantle and provides a main driving force for mantle flow.
T. W. Becker +2 more
doaj +1 more source
Introduction to special section: Hawaii Scientific Drilling Project [PDF]
, 1996 Intraplate or "hot spot" volcanic island chains, exemplified by Hawaii, play an important role in plate tectonic theory as reference points for absolute plate motions, but the origin of these volcanoes is not explained by the plate tectonic paradigm ...
DePaolo, Donald J. +2 more
core +1 more source
Seamounts in the Subduction Factory [PDF]
Oceanography, 2010 The “Subduction Factory” is a metaphor for the geochemical processing of subducted oceanic crust and sediment into components that are either incorporated into the volcanic arc or recycled into Earth’s mantle.
Hubert Staudigel +3 more
doaj
Density structure of Earth’s lowermost mantle from Stoneley mode splitting observations
Nature Communications, 2017 Large-low-shear-wave velocity provinces (LLSVPs) are present at the core–mantle boundary. Here, the authors show that splitting of Stoneley modes is probably due to a lower density of LLSVPs than the surrounding mantle because of the presence of post ...
Paula Koelemeijer +2 more
doaj +1 more source
Journal of Geophysical Research: Solid Earth, 2008 Decorrelation between s‐wave and bulk sound velocities in the lowermost mantle and explicit density models based on seismic tomography give evidence for non‐thermal lateral density variations in the lowermost mantle. Here we implement such variations in a numerical model of mantle flow driven by density anomalies which are derived from seismic ...
Steinberger, B., Holme, R.
openaire +4 more sources
60Fe-60Ni chronology of core formation in Mars
, 2014 The timescales of accretion, core formation, and magmatic differentiation in planetary bodies can be constrained using extinct radionuclide systems. Experiments have shown that Ni becomes more siderophile with decreasing pressure, which is reflected in ...
Dauphas, Nicolas, Tang, Haolan
core +1 more source
Heterogeneity in mantle carbon content from CO2-undersaturated basalts
Nature Communications, 2017 Melting dynamics are affected by the amount of carbon in the Earth’s mantle. Le Voyeret al. report undegassed carbon concentrations from olivine-hosted melt inclusions from the Mid-Atlantic Ridge finding that carbon content varies by two orders of ...
M. Le Voyer +3 more
doaj +1 more source