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When magma cools slowly deep underground it produces a rock with larger crystals than when the magma (or lava) cools quickly near (or on) the surface.

  • Rocks with the largest crystal structure are described as 'pegmatitic'.
  • Rocks with crystals visible to the naked eye are described as 'phaneritic'.
  • Rocks with no apparent crystal structure are called 'aphanitic'
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11y ago
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7y ago

Sills/laccoliths, dykes, lopoliths, batholiths, plutons, centred complexes, kimberlite pipes/diatremes are structures that form from the cooling and hardening of magma beneath earth's surface.

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15y ago

Igneous rock is formed through the process of cooling and hardening.

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14y ago

It produces intrusive, igneous rocks.

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Q: What structures form from the cooling and hardening of magma beneath earth's surface?
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Related questions

What structures are formed from the cooling and hardening of magma beneaths earths surface?

Plutons


What features form as a result of hardening beneath earth surface?

The features that form as a result of magma of magma hardening beneath the earth's surface are volcanic necks,sills and batholiths.


What features form as a result of magma hardening beneath earth surface?

The features that form as a result of magma of magma hardening beneath the earth's surface are volcanic necks,sills and batholiths.


What features form as a result of magma hardening beneath earth?

The features that form as a result of magma of magma hardening beneath the earth's surface are volcanic necks,sills and batholiths.


Which rock type forms from cooling on earth's surface?

Igneous rocks are formed by the cooling and hardening of molten material called magma.


Is it true Extrusions are formed by cooling magma beneath Earth's surface?

True


What is slow cooling magma far beneath earth's surface?

The slow cooling of magma far beneath earth's surface creates the rock inside earth to change slowly... this means that earths surface changes in times because of this cooling magma.


What kind of texture is slow cooling of magma far beneath earth's surface?

Slow cooling of magma far beneath earth's surface has a phaneritic texture (this means that the individual crystals are large enough to be seen with the naked eye).


How does surface hardening different from true hardening?

in my opinion surface hardening is applied only on the surface while the true hardening is applied in the whole part of the metal....


What are structures that form when magma solidifies beneath earth's surface called?

igneous, magmatic


How do you tell if a rock is intrusive?

Intrusive rocks are formed from cooling magma beneath the surface. The opposite would be an extrusive rock, these rocks form from lava cooling on the surface of the earth.


Explain how igneous rocks form?

Igneous rocks are one of the 3 main type of rocks, the others being sedimentary and metamorphic rocks. Igneous rocks are formed from the cooling of lava and magma. There are over 700 kinds of igneous rocks, and most are found beneath the surface of the Earth's crust.