extrusive Synonyms
No Synonyms and anytonyms found
extrusive Meaning
extrusive (a)
of rock material; forced out while molten through cracks in the earth's surface
extrusive (a.)
Forced out at the surface; as, extrusive rocks; -- contrasted with intrusive.
extrusive Sentence Examples
- The extrusive magma flowed out of the volcano, forming a lava flow.
- The extrusive igneous rocks were formed by the cooling and solidification of molten rock that flowed out of a volcano.
- The extrusive volcanic rocks are characterized by their fine-grained texture and glassy appearance.
- Obsidian is a common extrusive igneous rock that is formed when molten rock cools very rapidly.
- Pumice is another common extrusive igneous rock that is formed when molten rock is full of gas bubbles.
- Basalt is an extrusive igneous rock that is formed when molten rock is rich in iron and magnesium.
- Lava domes are formed when viscous extrusive magma flows out of a volcano and piles up around the vent.
- Cinder cones are formed when fragments of extrusive magma are ejected from a volcano and build up around the vent.
- Shield volcanoes are formed when extrusive magma flows out of a volcano and builds up a broad, gently sloping cone.
- Extrusive rocks are important sources of minerals, such as copper, gold, and silver.
FAQs About the word extrusive
of rock material; forced out while molten through cracks in the earth's surfaceForced out at the surface; as, extrusive rocks; -- contrasted with intrusive.
No synonyms found.
No antonyms found.
The extrusive magma flowed out of the volcano, forming a lava flow.
The extrusive igneous rocks were formed by the cooling and solidification of molten rock that flowed out of a volcano.
The extrusive volcanic rocks are characterized by their fine-grained texture and glassy appearance.
Obsidian is a common extrusive igneous rock that is formed when molten rock cools very rapidly.
