Explain how volcanic eruptions occur at destructive plate margins (4 marks usually).

Oceanic crusts are forced beneath the continental crust at a subduction zone because they are denser. Heat produced by friction turns the sinking oceanic plate into magma. This then tries to reach the surface as pressure continues to build. When it succeeds there will be a violent volcanic eruption. Examples of this can be found along the Pacific Ring of Fire.

Answered by Georgina E. Geography tutor

15664 Views

See similar Geography GCSE tutors

Related Geography GCSE answers

All answers ▸

Explain how long-shore drift occurs and changes the shape of the landscape.


How is an Oxbow lake formed?


Explain how sedimentary rocks such as sandstone are formed [6 marks].


Name and explain the formation of the river landform labelled A in Resource 1. (Waterfall Formation - 6 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