The Luzon Volcanic Arc is a chain of volcanoes in a north-south line across the Luzon Strait from Taiwan to Luzon. The name Luzon Volcanic Arc was first proposed by Carl Bowin et al. to describe a series of Miocene to recent volcanoes due to eastward subduction along the Manila Trench for approximately 1,200 km from the Coastal Range in Taiwan south to southern Mindoro in the Philippines. Islands that form part of the arc are the Eastern Coastal Range of Taiwan, Green Island, Taiwan, Orchid Island, Kaotai Rock, Mavudis or Y'ami Island, Mabudis, Siayan Island, Itbayat Island, Diogo Island, Batan Island, Unnamed volcano Ibuhos, Sabtang Island, Babuyan, Didicas, Camiguin Island. At the south end it terminates on Luzon. The geochemistry of a number of volcanoes along the arc have been measured. There are five distinct geochemical domains within the arc (Mindoro, Bataan, Northern Luzon, Babuyan, and Taiwan). The geochemistry of the segments verified that the volcanoes are all subduction related (e.g., strong niobium anomalies and calc-alkaline characteristics). Isotopes and trace elements show unique geochemical characteristics in the north. Geochemical variations northward (Babuyan segment) were due to the subduction of sediments derived from the erosion of continental crust from China and Taiwan.