extrusive in a sentence
a.
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Definition
Extrusive refers to volcanic rock or processes that occur when magma erupts onto the Earth's surface and cools rapidly.
Crossword clues for extrusive
Crossword clue ideas and answer hints for the word "extrusive".
- Volcanic rock formed from lava on the surface.
- Produced by magma that erupts and cools quickly.
- Describes rocks formed from surface lava flows.
- Type of igneous rock from volcanic eruptions.
- Related to cooling lava exposed to the atmosphere.
Extrusive sentence examples
- Extrusive volcanic rock forms when lava cools quickly upon reaching the Earth's surface.
- The landscape was shaped by extrusive processes, creating dramatic cliffs and valleys.
- Geologists study extrusive igneous formations to understand the history of volcanic activity in the region.
- Extrusive materials can often be identified by their fine-grained texture and lack of large crystals.
- The presence of extrusive lava flows indicates a relatively recent volcanic eruption in the area.