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.
Lahars are not intrusive. They are mudflows formed from extrusive material.
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.
Igneous rock makes dikes and sills. Basalt or Diabese Dikes are actually usually composed of dolerite.
Batholiths - parallel Sills- parallel Dikes- cut across
Both are formed from the solidification of cooling magma.
Lahars are not intrusive. They are mudflows formed from extrusive material.
1) Batholiths and Stocks2) loccoliths3) sills and dikes
Batholiths, Stocks, Laccoliths, Sills, & Dikes
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.
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.
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.
Plutons
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.
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.
Igneous rock makes dikes and sills. Basalt or Diabese Dikes are actually usually composed of dolerite.
In dikes and sills.
Stock Batholith