Geography A-Level
Decompression melting
What Decompression melting means in Geography A-Level, as defined for AQA.
Definition of Decompression melting
Check what you remember
Read the wording for your board, then hide it and explain Decompression melting in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
As mantle or plume material rises, falling pressure causes this process, which generates basaltic magma.
Topics that use Decompression melting
- Plate tectonics (AQA A-Level)
Related terms
- Conservative margins
- Destructive margins
- Magma plumes
- Slab pull
- Vulcanicity
- Constructive margins
- Convection currents
- Hotspot volcanoes
Using Decompression melting in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
Practise Geography questions
Create a free account to answer exam-style questions on this topic and get feedback on your answers.
Start free
All Geography A-Level termsA week of Premium from your first lesson · Then the free plan continues · No card, no charge