ES 2.3 Metamorphic Rock

What are the two main types of metamorphic rocks and how are they different?

• intrusive and extrusive; intrusive rocks are formed inside the earth and extrusive rocks are formed on the surface
• foliated and nonfoliated; foliated rocks do not have visible bands/layers and nonfoliated rocks do have visible bands/layers
• intrusive and extrusive; intrusive rocks are formed on the earth's surface and extrusive rocks are formed in the Earth
• foliated and nonfoliated; foliated rocks have visible bands/layers and nonfoliated rocks do not have visible bands/layers

The difference between regional metamorphism and contact metamorphism is that regional metamorphism is caused by _____ from __________ and contact metamorphism is caused by _________ from _______ intruding into other rock.

• heat, tectonic plates, pressure, magma
• pressure, tectonic plates, heat, magma
• heat, magma, pressure, tectonic plates
• pressure, magma, heat, tectonic plates

When metamorphic rocks are formed, the extreme heat is usually caused by the _______.

• gravity in the atmosphere
• collision of tectonic plates
• the fiery hot magma in the Earth's mantle
• weight of the mountains

__________  metamorphic rocks have mineral grains that are not arranged in distinct bands.

• Conglomerate
• Non-foliated
• Foliated
• Permeated

Which texture best describes the rock above?

• porphyritic 
• nonfoliated
• foliated
• clastic

Metamorphic Rocks are classified by

• Mineral Composition
• Texture (foliated / non foliated)
• Grain Sizes
• How they formed.

What does sandstone change into?

• gneiss
• quartzite
• marble
• slate

Igneous intrusions cause which type of metamorphism?

• contact
• regional

What force is associated with contact metamorphism?

• heat
• pressure

Where do we usually find regional metamorphism?

• ocean floor
• mountain
• plate boundaries
• deserts