Seismic anisotropy is a key observational tool for map** flow in Earth's upper mantle.
However, interpreting patterns of anisotropy relies on a firm understanding of the …

Subduction initiation is a key process in the operation of plate tectonics. Our understanding
of melting processes and magmatic evolution during subduction initiation has largely been …

The compositional variability of the lithospheric mantle at extensional settings is largely
caused by the reactive percolation of uprising melts in the thermal boundary layer and in …

After travelling in Earth's interior for up to billions of years, recycled material once injected at
subduction zones can reach a subridge melting region as pyroxenite dispersed in the host …

The genesis of primitive arc magmas has had a major impact on continent formation through
time, but the rarity of exposures of deep arc sections limits our understanding of the details of …

Variations of the stable Ca isotopic compositions (noted as δ 44/40 Ca relative to the
SRM915a standard) of basalts are interpreted as effects of mantle sources. Mantle …

Abstract Pyroxenites, comprising only approximately 2%–10% by volume of the upper
mantle, are among the most important lithological heterogeneity in the mantle. The formation …

The geodynamic evolution of the proto-northern Indian continental margin during
Paleoproterozoic is widely debated. The proposed models include (i) a mantle plume …

Pyroxenite veins and dikes are commonly observed in the mantle section of ophiolites.
Because of their mantle occurrence, these pyroxenites are free from crustal contamination …

Tectonic switch from rift zones to subduction zones is common along convergent plate
boundaries. While this process is susceptible to retrieving from Phanerozoic rock records …