Abstract: Earth's mantle is more than 2800 km deep, compositionally heterogenous, and potentially stratified. However, understanding of its heterogeneities and stratification is limited. Recently, plume-like anomalies were detected to exhibit different types of anomalous behavior at ∼1000 km depth, where they laterally pond, neck or broadly penetrate to the upper mantle, suggesting that their behavior may be influenced by possible viscosity or density stratification near this depth. However, the specific key reasons are unclear. Here, we use 2D thermal...
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Topics: 
Geophysics
Petrology