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  • Extrusive rock - Wikipedia
    Extrusive rock refers to the mode of igneous volcanic rock formation in which hot magma from inside the Earth flows out (extrudes) onto the surface as lava or explodes violently into the atmosphere to fall back as pyroclastics or tuff [1]
  • EXTRUSIVE Definition Meaning - Merriam-Webster
    The meaning of EXTRUSIVE is relating to or formed by geologic extrusion from the earth in a molten state or as volcanic ash How to use extrusive in a sentence
  • Extrusive rock | Igneous, Volcanic, Magma | Britannica
    extrusive rock, any rock derived from magma (molten silicate material) that was poured out or ejected at Earth’s surface By contrast, intrusive rocks are formed from magma that was forced into older rocks at depth within Earth’s crust; the molten material then slowly solidifies below Earth’s surface, where it may later be exposed through
  • Intrusive Vs. Extrusive Igneous Rocks – Geology In
    Extrusive igneous rocks, also known as volcanic rocks, are formed when magma reaches the Earth's surface and cools rapidly This process occurs when magma from the Earth's mantle rises to the surface through volcanic vents or fissures, resulting in volcanic eruptions
  • Differences Between Extrusive And Intrusive Rocks - Sciencing
    Extrusive rocks and intrusive rocks both form when hot molten material crystallizes However, extrusive rocks form from lava at the surface of the Earth, whereas intrusive rocks form from magma underground, often relatively deep in the Earth
  • Extrusive - Definition, Meaning Synonyms - Vocabulary. com
    DISCLAIMER: These example sentences appear in various news sources and books to reflect the usage of the word ‘extrusive' Views expressed in the examples do not represent the opinion of Vocabulary com or its editors
  • Extrusive - definition of extrusive by The Free Dictionary
    Define extrusive extrusive synonyms, extrusive pronunciation, extrusive translation, English dictionary definition of extrusive adj Derived from magma poured out or ejected at the earth's surface Used of igneous rocks
  • EXTRUSIVE definition and meaning | Collins English Dictionary
    2 meanings: 1 tending to extrude 2 (of igneous rocks) formed from magma issuing from volcanoes or cracks in the earth's Click for more definitions
  • extrusive adjective - Definition, pictures, pronunciation and usage . . .
    Definition of extrusive adjective in Oxford Advanced Learner's Dictionary Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more
  • Volcanic and Extrusive Igneous Rocks - ThoughtCo
    Extrusive igneous rocks cool quickly on the Earth's surface, making them fine-grained and gassy Volcaniclastic rocks are unique because they have properties of both igneous and sedimentary rocks Pumice and scoria are lightweight volcanic rocks filled with gas bubbles, often used in construction
  • What is the difference between intrusive rocks and extrusive rocks
    Extrusive rocks are a type of igneous rock that form from the solidification of lava on the Earth’s surface They are called “extrusive” because they extrude or erupt onto the Earth’s surface from volcanic vents, rather than solidifying beneath the Earth’s surface like intrusive rocks
  • EXTRUSIVE Definition Meaning - Dictionary. com
    Extrusive definition: tending to extrude See examples of EXTRUSIVE used in a sentence
  • What is the Difference Between Extrusive and Intrusive Igneous Rocks
    The difference between extrusive and intrusive igneous rocks is their formation Intrusive Igneous rocks form from magma that cools and hardens underground; extrusive rocks form from magma that erupts onto the Earth's surface
  • Extrusive - (Intro to Geology) - Vocab, Definition . . . - Fiveable
    Extrusive refers to igneous rocks that are formed from lava that cools and solidifies quickly on the Earth's surface This rapid cooling typically results in fine-grained textures because there isn’t enough time for large crystals to form, making extrusive rocks distinct in their appearance and composition compared to their intrusive
  • What does extrusive mean? - Definitions. net
    Extrusive refers to a type of igneous rock that is formed when magma from within the Earth's crust escapes onto the surface, cools and solidifies The term can also describe volcanism or any geologic process that happens on or near the planet's surface





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