Research about the antiquity of the continental sized large low shear wave velocity provinces at the core-mantle boundary was published in Geochemistry, Geophysics, Geosystems: Primitive helium is sourced from seismically slow regions in the lowermost mantle by Curtis Williams, Sujoy Mukhopadhyay, Maxwell Rudolph and Barbara Romanowicz, and was featured in GeoSpace.
Gigantic masses in the Earth’s mantle have existed for more than 4 billion years.
sujoy2021-08-14T00:38:05-07:00