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 toothfish Patagonian toothfish The Patagonian toothfish, Dissostichus eleginoides, is a species of cod icefish found in cold waters () between depths of in the southern Atlantic, Pacific, and Indian Oceans and Southern Ocean on seamounts and continental shelves around most sub-Antarctic islands. A close relative, the Antarctic toothfish, (Dissostichus mawsoni) is found farther south around the edges of the Antarctic shelf; and a Marine Stewardship Council-certified fishery is active in the Ross Sea. The average weight of a commercially caught Patagonian toothfish is , depending on the fishery, with large adults occasionally exceeding . They are thought to live up to