What are the four types of igneous intrusions?

Igneous Intrusions

• Sills: form when magma intrudes between the rock layers, forming a horizontal or gently-dipping sheet of igneous rock. …
• Dykes: form as magma pushes up towards the surface through cracks in the rock. …
• Batholiths:

What are the four types of igneous intrusions quizlet?

Terms in this set (10)

• Pluton. a body of intrusive igneous rock.
• Intrusion. an intrusive igneous formation (dike, sill, etc.)
• Batholith. a really big body of intrusive igneous rock (usually felsic or intermediate)
• Lacollith. …
• Xenolith. …
• Stock. …
• Sill. …
• Dike.

What are 4 intrusive igneous rocks?

Intrusive igneous rocks crystallize below Earth’s surface, and the slow cooling that occurs there allows large crystals to form. Examples of intrusive igneous rocks are: diabase, diorite, gabbro, granite, pegmatite, and peridotite.

What are the 4 types of igneous rocks?

As has already been described, igneous rocks are classified into four categories, based on either their chemistry or their mineral composition: felsic, intermediate, mafic, and ultramafic.

What are 4 characteristics of igneous rocks?

Igneous rocks can be easily identified with their texture, density, colour, and mineral composition. Its texture depends on the shape, size, time period to cool down and solidify, and the arrangement of crystals in the rock.

What is an igneous intrusion quizlet?

STUDY. what is an igneous intrusion? hot molten material that has forced its way into the crust through lines of weaknesses and has solidified before reaching the surface.