Most of Earth’s volcanism occurs at tectonic plate boundaries associated with subduction or rifting processes. The mantle plume hypothesis is an important supplement to tectonics for explaining some high-volume intraplate volcanic fields. However, many magmatic provinces occur as low-volume, monogenetic basaltic-suite fields that are neither plate-boundary processes nor attributable plumes, and...

The spreading of the East Vietnam Sea (EVS, also known as Bien Dong, or South China Sea), leading to occurrence syn-spreading (33-16 Ma) and post-spreading (< 16 present) volcanism. Syn-spreading magma making up thick layers tholeiitic basalt with a geochemical composition close refractory depleted mid-ocean ridge (MORB) is mainly distributed inside EVS basin. widely basin extended SE China,...

The time around 3.7 Ga ago was an epoch when substantial changes in Mars occurred: a substantial decline in aqueous erosion/degradation of landscape features; a change from abundant phyllosilicate formation to abundant acidic and evaporitic mineralogy; a change from olivine-rich volcanism to olivine-pyroxene volcanism; and maybe the cessation of the martian dynamo. Here I show that Mars also ex...

The Neoproterozoic shoshonitic and mildly alkaline bimodal volcanism of Southernmost Brazil is represented by rock assemblages associated to sedimentary successions, deposited in strike-slip basins formed at the post-collisional stages of the Brasilian/Pan-African orogenic cycle. The best-preserved volcano sedimentary associations occur in the Camaquã and Campo Alegre Basins, respectively in th...

Collision of oceanic plateaus with trenches has played a key role in the continental growth and plate tectonic reorganizations throughout Earth's history. However, understanding collision between an initially rifted plateau trench is still deficient. Here we conduct first seismic tomography receiver function analyses Yap subduction zone, western Pacific Ocean, where Caroline Plateau colliding T...