From intra-oceanic subduction to arc accretion and arc-continent collision: Insights from the structural evolution of the Río San Juan metamorphic complex, northern Hispaniola

► Model of arc-arc collision and underplating of arc terranes along the northern Caribbean plate convergent margin. ► 120-110 Ma: Subduction of oceanic crust took place under the opposite Caribbean and proto-Pacific island-arc systems. ► 110-100 Ma: Subduction/underplating of the proto-Pacific arc beneath the Caribbean island-arc. ► 100-85 Ma: Trench roll-back is accompaigned by Caribbean island arc rifting and exhumation of the accreted arc terranes.