Extrusive (Adjective)
Meaning
Of rock material; forced out while molten through cracks in the earth's surface.
Classification
All adjective clusters.
Examples
- The volcanic rock formation was characterized by its extrusive texture, indicating it had been ejected from the earth's surface as molten lava.
- Extrusive rocks, such as basalt and andesite, are commonly found in areas surrounding volcanic regions.
- The geologist studied the extrusive rocks to understand the volcanic activity that had shaped the landscape millions of years ago.
- The dark color and fine-grained texture of the rock suggested it was an extrusive rock that had cooled rapidly after being ejected from the earth's surface.
- The presence of extrusive rocks in the area provided evidence of ancient volcanic activity that had long since ceased.