North Patagonian Batholith North Patagonian Batholith The North Patagonian Batholith () is a series of igneous plutons in the Patagonian Andes of Argentina and Chile. The Northern Patagonian Batholith was formed in the Mesozoic Era and Cenozoic Era. It is made up of a collection of individual plutons made up of granodiorite, tonalite and diorite among other rocks. Most plutons of the North Patagonian Batholith are of Cretaceous Period to the Miocene age of the Neogene Period (135 Ma to 25-15 Ma), during the Mesozoic Era. Late Miocene to early Pliocene (10 to 5 Ma) leucogranites were also intruded. The Tertiary intrusions are
Patagonian Desert desert iguana, western ribbon snake, and various species of eagle and hawk are a few of the variety of animals living in the region. The flora of the region is quite common for its climate and includes several species of desert shrubs like "Acantholippia" and "Benthamiella" and tuft grasses like "Stipa" and "Poa". Aquatic grasses and larger flora exist on the outskirts of the desert and around the ephemeral lakes that form from the Andes' runoff. The desert has hosted various indigenous peoples in its past, as evidenced by cave paintings in the area. The earliest inhabitants of the desert