noun
- volcanic activity or phenomena
Usage: geological
Examples
- The region’s volcanism has created a landscape of lava fields and ash deposits.
- Scientists study volcanism to better understand Earth’s internal processes.
- Ancient volcanism shaped the mountain range millions of years ago.
- The island chain was formed by underwater volcanism.
- Evidence of past volcanism can be seen in the rock formations.
- Modern volcanism continues to add new land to the coastline.