Negative core–mantle boundary heat flux beneath low-shear-wave-velocity provinces (opens in new tab)

The Earth’s core–mantle boundary hosts structures and processes that affect our planet’s thermal evolution. Spatial and temporal changes in core–mantle boundary heat flux influence core dynamics and its associated geodynamo. These variations, in turn, are controlled by details of mantle dynamics and may be affected by lowermost mantle structures, in particular large low-shear-wave-velocity provinces, which are commonly interpreted as reservoirs of hot, chemically differentiated material. Here...