Quartz diorites represent the earliest (ca. 540 Ma) and most primitive plutonic rocks in the
Pan African Damara belt and they pre-date the main phase of high-T regional …

Current models for melt segregation and ascent are not adequate to accurately describe
transport and accumulation in combination. We propose that transport is discontinuous and …

Abstract: Primitive magmas representing mantle partial melts minimally affected by
fractionation and assimilation are rare in the magmatic arc environment. Most examples are …

Long-lived continental margin arcs are characterized by episodes of large-volume
magmatism (or flare-ups) that can persist for∼ 30 my before steady-state arc conditions …

A review of the literature shows that layering in granitoids is the expression of three
processes occurring concurrently during the growth of plutons (injection, hydrodynamic …

Mafic dykes of the Antarctic Peninsula continental-margin arc are compositionally diverse,
comprising calc-alkaline (dominant), shoshonite, tholeiite, and OIB-like varieties. Their …

The South Atlantic basins during the Late Cretaceous were characterized by overall
expansion and the opening of deep‐water connections, eventually permitting deep‐ocean …

Abstract The mid to Late Triassic marks an episode of magmatism, deformation and
metamorphism along the proto-Pacific margin of the Antarctic Peninsula and Patagonia …

Magmatic rocks from the Antarctic Peninsula show marked variations in isotope composition,
which reflect changes in the geodynamic evolution of the peninsula through time. Most …

The Cretaceous marks an episode of enhanced magmatism, sedimentation and tectonic
processes along the entire proto-Pacific convergent margin of West Gondwana. Cretaceous …