Results 21 to 30 of about 1,343,718 (191)
The influence of potassium on core and geodynamo evolution [PDF]
, 2004 We model the thermal evolution of the core and mantle using a parametrized convection scheme, and calculate the entropy available to drive the geodynamo as a function of time.
Abramowitz +19 more
core +1 more source
Multiscale model of global inner-core anisotropy induced by hcp-alloy plasticity [PDF]
, 2016 $\bullet$ Multiscale model of inner-core anisotropy produced by hcp alloy deformation$\bullet$ 5 to 20% single-crystal elastic anisotropy and plastic deformation by pyramidal slip $\bullet$ Low-degree inner-core formation model with faster ...
Cardin, Ph +3 more
core +4 more sources
Earthʼs inner core: Innermost inner core or hemispherical variations?
Earth and Planetary Science Letters, 2014 The structure of Earth's deep inner core has important implications for core evolution, since it is thought to be related to the early stages of core formation. Previous studies have suggested that there exists an innermost inner core with distinct anisotropy relative to the rest of the inner core. Using an extensive new data set of handpicked absolute
K.H. Lythgoe +3 more
openaire +2 more sources
Microscopic Vortex Velocity in the Inner Crust and Outer Core of Neutron Stars [PDF]
, 2016 Treatment of the vortex motion in the superfluids of the inner crust and the outer core of neutron stars is a key ingredient in modeling a number of pulsar phenomena, including glitches and magnetic field evolution.
Alpar, M. Ali, Gügercinoğlu, Erbil
core +2 more sources
The inner inner core of Earth [PDF]
Proceedings of the National Academy of Sciences, 2002 The solid inner core (Fig. 1) is the most remote and enigmatic part of our planet, and, next to the crust, is the smallest “official” subdivision of Earth's interior. It was discovered in 1936 (1), and by 1972 it was established that it was solid, albeit with a very small rigidity (2–4). By 1993 it had been established that it was crystalline (5).
openaire +3 more sources
Earth's Inner Core dynamics induced by the Lorentz force [PDF]
, 2015 Seismic studies indicate that the Earth's inner core has a complex structure and exhibits a strong elastic anisotropy with a cylindrical symmetry. Among the various models which have been proposed to explain this anisotropy, one class of models considers
Cardin, P. +3 more
core +4 more sources
Geochemistry, Geophysics, Geosystems, 2018 Standard Earth models assume a simple uniform inner core boundary (ICB) separating the liquid iron outer core from the solid iron inner core. Metallurgical and geodynamic experiments, however, predict lateral variations along this boundary originating ...
Januka Attanayake +4 more
doaj +1 more source
Analyses of anomalous amplitudes of antipodal PKIIKP waves
Earth and Planetary Physics, 2019 Approaching the distance of 180°, seismic focusing greatly amplifies the normally weak PKIIKP phase (underside reflection from the inner core boundary). Anomalously strong amplitudes of the PKIIKP phase reported previously at near antipodal distances (at
WenShuang Wang, XiaoDong Song
doaj +1 more source
Gross thermodynamics of two-component core convection [PDF]
, 2004 We model the inner core by an alloy of iron and 8 per cent sulphur or silicon and the outer core by the same mix with an additional 8 per cent oxygen.
Alfè +31 more
core +1 more source
Thermal convection in Earth's inner core with phase change at its boundary [PDF]
, 2013 Inner core translation, with solidification on one hemisphere and melting on the other, provides a promising basis for understanding the hemispherical dichotomy of the inner core, as well as the anomalous stable layer observed at the base of the outer ...
Alboussière, Thierry +2 more
core +2 more sources