The Vicuña Mackenna Batholith is a group of plutons in the Chilean Coast Range of northern Chile. The plutons of the batholith formed between the Early Jurassic and the Late Cretaceous. The magmas that formed the batholith originated in Earth's mantle and have not suffered any significant crustal contamination. A group of Early Cretaceous plutons were intruded syn-tectonically on the Atacama Fault.