15 Questions
What are the two main factors that cause metamorphism?
Heat and pressure
During which process do small crystals in the rock combine to form larger crystals?
Recrystallization
What is the process called where new minerals are formed by changing the chemical composition of the parent rock's crystals?
Neometamorphism
Which type of rock is formed from the recrystallization of limestone?
Marble
What does metasomatism involve?
Chemical change in rock's composition
What is the meaning of 'metamorphic' in the context of geology?
A change in the form of rocks due to heat, pressure, or both
What are the three main metamorphic processes mentioned in the text?
Recrystallization, neometamorphism, metasomatism
What is impact metamorphism also known as?
Shock metamorphism
What happens to the minerals under impact metamorphism?
They transform into a special form due to high temperature and pressure
How do metamorphic rocks originate, according to the text?
From any type of rock: igneous, sedimentary, or other metamorphic rocks
What is the organic matter formed in a swampy humid area called?
Peat
At what depth and temperature does peat become low-grade lignite?
1 km deep and 50 degrees Celsius
What happens to the peat at higher temperatures and in deeper zones within the earth's interior?
It becomes denser bituminous coal
What is another name for anthracite?
Hard coal
What causes the metamorphic rock process of metasomatism to start?
The alteration of chemical composition of crystals by gaseous chemicals
Learn about metamorphism in geology and how rocks undergo changes in form when subjected to heat, pressure, or both over a long period of time. Understand the origins and processes of metamorphic rocks.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
