Core–mantle boundary heat flow
The Earth can be viewed as a massive heat engine, with various energy sources and sinks.
Insights into its evolution can be obtained by quantifying the various energy contributions in …
Insights into its evolution can be obtained by quantifying the various energy contributions in …
Structure and dynamics of Earth's lower mantle
EJ Garnero, AK McNamara - science, 2008 - science.org
Processes within the lowest several hundred kilometers of Earth's rocky mantle play a critical
role in the evolution of the planet. Understanding Earth's lower mantle requires putting …
role in the evolution of the planet. Understanding Earth's lower mantle requires putting …
A crystallizing dense magma ocean at the base of the Earth's mantle
The distribution of geochemical species in the Earth's interior is largely controlled by
fractional melting and crystallization processes that are intimately linked to the thermal state …
fractional melting and crystallization processes that are intimately linked to the thermal state …
A review of large low shear velocity provinces and ultra low velocity zones
AK McNamara - Tectonophysics, 2019 - Elsevier
Seismic tomography reveals 2 extensive regions in the lowermost mantle, beneath Africa
and the Pacific, that exhibit lower-than-average seismic wave speeds. These regions have …
and the Pacific, that exhibit lower-than-average seismic wave speeds. These regions have …
Kilometer-scale structure on the core–mantle boundary near Hawaii
The lowermost mantle right above the core-mantle boundary is highly heterogeneous
containing multiple poorly understood seismic features. The smallest but most extreme …
containing multiple poorly understood seismic features. The smallest but most extreme …
Cluster analysis of global lower mantle tomography: A new class of structure and implications for chemical heterogeneity
Earth's lower mantle is dominated by a pair of antipodal large low shear velocity provinces
(LLSVPs) that reach> 1000km up from the core–mantle boundary (CMB). These are …
(LLSVPs) that reach> 1000km up from the core–mantle boundary (CMB). These are …
Hydrogen-bearing iron peroxide and the origin of ultralow-velocity zones
Ultralow-velocity zones (ULVZs) at Earth's core–mantle boundary region have important
implications for the chemical composition and thermal structure of our planet, but their origin …
implications for the chemical composition and thermal structure of our planet, but their origin …
Ultralow velocity zone locations: A global assessment
S Yu, EJ Garnero - Geochemistry, Geophysics, Geosystems, 2018 - Wiley Online Library
We have compiled all previous ultralow velocity zone (ULVZ) studies, and digitized their
core‐mantle boundary (CMB) sampling locations. For studies that presented sampling …
core‐mantle boundary (CMB) sampling locations. For studies that presented sampling …
Spin crossover and iron-rich silicate melt in the Earth's deep mantle
A melt has greater volume than a silicate solid of the same composition. But this difference
diminishes at high pressure, and the possibility that a melt sufficiently enriched in the heavy …
diminishes at high pressure, and the possibility that a melt sufficiently enriched in the heavy …
Internal structure of ultralow-velocity zones consistent with origin from a basal magma ocean
Seismological observations reveal patches of low-velocity anomalies at the core–mantle
boundary known as ultralow-velocity zones. Despite recent advances, their origin and …
boundary known as ultralow-velocity zones. Despite recent advances, their origin and …