How are vesicles and amygdales formed in an igneous rock?

When a lava cools in forms air bubbles which can then burst. Leaving a hollow vesicle behind. Amygdales are vesciles infilled by minerals. Hydrothermal water with dissolved minerals pass through vesicles. As the liquid cools minerals such as quartz and calcite precipitate. This forms amygdales.

RC
Answered by Ruth C. Geology tutor

3753 Views

See similar Geology A Level tutors

Related Geology A Level answers

All answers ▸

What are the major components required for a oil accumulation to form.


What are the three broad classifications of rock type? How is each produced?


Explain why the Composition of the Plagioclase Feldspar may vary within an Intrusion.


What does Porphyritic mean ?


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