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Yes they are. Dikes are tabular discordant bodies that are produced when magma is injected into fractures and Sills are tabular plutons formed when magma is injected along sedimentary bedding surfaces.

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โˆ™ 13y ago
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Q: Are sills and dikes an example of intrusive igneous activity?
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Related questions

Which is not an example of intrusive activity sills and dikes laccoliths lahars Batholiths?

Lahars are not intrusive. They are mudflows formed from extrusive material.


Five intrusive igneous rock structures?

1) Batholiths and Stocks2) loccoliths3) sills and dikes


Describe five intrusive igneous rock structures?

Batholiths, Stocks, Laccoliths, Sills, & Dikes


Is gabbro a dike?

Gabbro is an intrusive mafic igneous rock. A dike is a type intrusive igneous structure and is not associated with any particular type of igneousn rock. Gabbro can form dikes, sills, and other structures.


Sheets of igneous rock that are parallel to the layers they intrude?

A sheet of igneous rock that protrudes into the surrounding layers of rock is called a dike. Dikes are most often horizontal sheets that can form in many layers.


Which feature forms when magma cools beneath Earthโ€™s surface?

igneous rocks When magma cools and solidifies in these spaces, Intrusive or plutonic igneous rocks are formed deep beneath the Earth's surface. Intrusive features like stocks, laccoliths, sills, and dikes are formed.


What is a intrusive igneous rock body including batholiths stocks sills and dikes formed through mountain building processes and oceanic- oceanic collisions called?

Plutons


What forms when magma pushes into vertical cracks and cuts through layers of rock.?

When magma pushes into vertical cracks and cuts through layers across, igneous rocks called dikes are formed. Dikes are one form of plutons. An intrusive dike would form.


What is it called when magma forces itself into surrounding underground rock?

It's called an intrusion.Depending on just how the igneous rock (molten rock) enters into the existing rock, you can have dikes, sills, plutons and batholiths.


How are sills and dikes arranged in relation to the surrounding rocks?

Igneous rock makes dikes and sills. Basalt or Diabese Dikes are actually usually composed of dolerite.


Where is igneous rock in magma intrusion into sedimentary rock?

In dikes and sills.


What is an intrusive igneous body?

Stock Batholith