The type of plate boundary along the Peru-Chili trench is the convergent type which is acting between the Nazca plate and the South American plate Md. Rafiqul Islam, PhD Assistant Professor Dept. of Petroleum & Mining Engineering Shahjalal University of Science & Technology Sylhet-3114, Bangladesh
Trenches such as the Peru-Chile trench are found at destructive (also known as convergent) subductive plate margins where the denser oceanic plate is being subducted beneath the lighter continental plate. Trenches are common at subduction zones.