Rocks and Minerals Earth Science Regents (2021)

Front

What characteristic of a granite intrusion indicates it solidified deep underground?

Back

Coarse texture

Front

What type of rock texture is associated with igneous rocks that formed deep underground?

Back

Coarse grained

Front

Which two types of bedrock are likely to have a zone of contact metamorphism between them?

Back

Limestone and granite

Front

What is the definition of metamorphism?

Back

The process by which rocks change in response to heat, pressure, or chemically active fluids.

Front

What is the difference between intrusive and extrusive igneous rocks?

Back

Intrusive rocks form from magma that cools slowly underground, while extrusive rocks form from lava that cools quickly on the surface.

Front

What does the term 'felsic' refer to in geology?

Back

Felsic refers to igneous rocks that are rich in light-colored minerals such as quartz and feldspar.

Front

What is the significance of crystal size in igneous rocks?

Back

Larger crystals indicate slower cooling rates, typically associated with intrusive rocks, while smaller crystals indicate faster cooling rates, typical of extrusive rocks.

Front

What is contact metamorphism?

Back

Contact metamorphism occurs when rocks are heated by nearby molten magma, leading to changes in mineral composition and texture.

Front

What is the role of temperature and pressure in the formation of metamorphic rocks?

Back

Increased temperature and pressure can cause existing rocks to change physically and chemically, resulting in metamorphic rocks.

Front

What is the definition of a mineral?

Back

A naturally occurring, inorganic solid with a definite chemical composition and a crystalline structure.