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What are Igneous Rocks?
Classifying Igneous Rocks
Sedimentary Rocks
Metamorphic Rocks
The Rock Cycle
100
Formed from the crystallization of magma.
What are Igneous rocks?
100
Intrusive and Extrusive
What are the 2 broad classifications of Igneous rocks?
100
Pieces of solid material that have been deposited on Earth's surface by wind, water, ice, gravity or chemical precipitation.
What is sediments?
100
Foliated and Non-foliated
What are the two types of Metamorphic rocks we discussed?
100
The Rock Cycle ALWAYS begins with this molten material.
What is Magma?
200
Fine grained igneous rocks that cool quickly on Earth's surface.
What are extrusive igneous rocks?
200
Rocks such as granite which are light colored and have a high silica content.
What are Felsic (Igneous) rocks?
200
Sediments which are laid down on the ground or sink to the bottom of bodies of water.
What is deposition?
200
Temperature, pressure, water content and mineral composition.
What are the 4 factors affecting the formation of magma?
200
Magma, through cooling and crystallization turns into this type of rock.
What is Igneous rocks?
300
Magma that flows out onto Earth's surface.
What is lava?
300
Igneous rocks with low silica content and very high levels of iron and magnesium.
What are Ultramafic (Igneous) rocks?
300
Physical and/or chemical processes that transform sediments into Sedimentary rocks.
What is Lithification?
300
Wavy layers of bands and minerals within metamorphic rocks.
What is Foliated Metamorphic rocks?
300
These two things are needed to turn Igneous rocks into Metamorphic rocks.
What are Heat and Pressure?
400
Course grained igneous rocks that cool slowly beneath the Earth's surface.
What are Intrusive Igneous Rocks?
400
Rocks such as Gabbro which are dark colored and have lower silica contents.
What are Mafic (Igneous) rocks?
400
Course-grained, medium-grained and fine-grained clastics.
What are the types of Sedimentary rocks?
400
Metamorphic rocks which lack mineral grains with long axes in one directions.
What is Non-foliated Metamorphic rocks?
400
This must happen for Igneous rocks to become Sedimentary rocks.
What is weathering and erosion?
500
Different minerals form at different temperatures.
What is fractional crystallization?
500
Another way to classify Igneous rocks.
What is grain size?
500
The percentage of open spaces between grains in a rock.
What is porosity?
500
The continuous changing and remaking of rocks.
What is the Rock Cycle?
500
This must happen for Metamorphic rocks to become Igneous rocks.
What is melting, cooling and crystallization?