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UrduBy analyzing noble gas isotope data, a scientist determined that the ancient plume mantle had a water concentration that was a factor of 4 to 250 times lower when compared with the water concentration of the upper mantle. The resulting viscosity contrast could have prevented mixing within the mantle, helping to explain certain long-standing mysteries about Earth’s formation and evolution.
Tag: Mantle
Geoscientists to study structure and properties of Antarctic lithosphere
Researchers from Washington University in St. Louis received a grant from the National Science Foundation to determine the thermal and compositional structure of Antarctica using seismic, gravity and topography data and petrological modeling.