Luzon Volcanic Arc

The name "Luzon Volcanic Arc" was first proposed by Carl Bowin et al.[1][2] 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.

The geochemistry of the segments verified that the volcanoes are all subduction related (e.g., strong niobium anomalies and calc-alkaline characteristics).

Geochemical variations northward (Babuyan segment) were due to the subduction of sediments derived from the erosion of continental crust from China and Taiwan.

This supports the conjecture that the variations were due to an increasing "crustal" component in subducted sediments as the continental blocks in the north were approached (China and Taiwan).

[5] The geochemistry suggested that continental crust (probably from sediments) played an important role in the Macolod corridor[6] and the Mindoro segments.