North Luzon Trough
The North Luzon Trough is a major geological feature located off the northern coast of Luzon Island between the Manila Trench and the Vigan-Agao Fault in the Philippines.[1] It is a well-developed forearc basin formed in front of the Luzon Volcanic Arc, an island arc system.[2] The trough is a result of the active subduction of the Philippine Sea Plate beneath the Eurasian Plate.
Geological formation
The North Luzon Trough formed as a result of the oblique convergence between the Eurasian and Philippine Sea plates.[citation needed] The Philippine Sea Plate is subducting beneath the Eurasian Plate at a rate of approximately 80 millimeters per year (3.1 inches per year). This oblique convergence creates a complex tectonic setting, with both compressional and extensional forces acting on the crust.
The trough itself is a
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