What happens at a destructive plate boundary where two oceanic plates converge (come together)?

Two oceanic plates are converging and the faster moving or slightly denser one subducts. The basaltic rock of the subducted plate starts to melt and rises through the mantle to form a submarine volcano. Overtime, the submarine volcano builds up in layers and can eventually break through the surface of the ocean to become a volcanic island. An example of this is Guam, the US territory on the western side of the Pacific Ocean. The Pacific Plate is being subducted beneath the smaller Philippine Plate.  

Related Geography A Level answers

All answers ▸

How do I structure a 40 mark essay answer?


Using named examples, assess the relative importance of economic, military and cultural factors in influencing superpower status.


"In spite of more than US$1 trillion in aid to Africa over the last 50 years, GDP per capita growth in Africa decreased and was for many years even measured in negative figures. Aid is more of a hindrance to LEDCs". Discuss.


Evaluate how plate tectonics theory helps our understanding of the distribution of seismic and volcanic events (40 Marks)


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences