Metamorphic Rocks and Processes

This video tutorial covers the classification of rocks, focusing on metamorphic rocks. It explains how metamorphic rocks undergo changes due to intense heat and pressure, introducing two types of metamorphism: contact and regional. Contact metamorphism occurs when rocks come into contact with magma or lava, while regional metamorphism is driven by pressure at convergent plate boundaries. The video also discusses the progression of metamorphic rocks from shale to gneiss and provides a brief overview of the metamorphic rock chart.

What are the three main types of rocks based on their formation?

• Sedimentary, Metamorphic, Volcanic

• Igneous, Sedimentary, Volcanic

• Igneous, Volcanic, Metamorphic

• Igneous, Sedimentary, Metamorphic

What primarily causes contact metamorphism?

• Freezing temperatures

• Erosion by water

• Contact with intense heat from magma or lava

• Pressure from tectonic plates

In contact metamorphism, what happens to rocks when they come into contact with magma?

• They melt completely

• They are eroded away

• They are burned and change into new forms

• They remain unchanged

What is the main factor driving regional metamorphism?

• Cooling of magma

• Erosion by wind

• Pressure from converging tectonic plates

• Heat from the sun

Which type of plate boundary is associated with regional metamorphism?

• Convergent

• Transform

• Static

• Divergent

What is the first metamorphic rock formed from shale under heat and pressure?

• Slate

• Gneiss

• Phylite

• Schist

What is the final metamorphic rock in the progression from shale before it potentially melts?

• Slate

• Gneiss

• Phylite

• Schist

What characteristic is notable in gneiss due to intense pressure?

• Porous structure

• Bands of minerals

• Smooth texture

• Bright colors

What happens to gneiss if additional heat and pressure are applied?

• It remains unchanged

• It melts into magma or lava

• It turns into slate

• It becomes sedimentary rock

Where can you find a summary of metamorphic rock characteristics?

• In the igneous rock chart

• In the conclusion of the video

• In the metamorphic rock chart on page 7

• In the introduction section