CE 211 - Igneous Rocks and Rock Cycle Quiz

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What is the term used to describe very fine-grained igneous rocks?

Aphanitic (correct)

Glassy

Phaneritic

Porphyritic

Which type of igneous rock texture is characterized by the presence of both coarse and fine-grained minerals?

Pyroclastic

Aphanitic

Porphyritic (correct)

Phaneritic

Which type of igneous rock texture is formed when magma or lava cools very quickly, resulting in a glassy appearance?

Pegmatitic

Pahoehoe Lava

Aa Lava

Glassy (correct)

What is the term used to describe the ejection of fragmented rock material from a volcanic eruption?

Pyroclastic Materials Signup and view all the answers

Which type of igneous rock texture is characterized by very large, coarse-grained minerals?

Pegmatitic Signup and view all the answers

What is the name given to the rough, jagged surface of an `aa` lava flow?

Aa Lava Signup and view all the answers

What type of igneous rock has a glassy texture?

Obsidian Signup and view all the answers

Which type of igneous material is formed by explosive volcanic eruptions?

Pyroclastic materials Signup and view all the answers

What type of igneous rock has a coarse-grained, pegmatitic texture?

Pegmatite Signup and view all the answers

Which type of lava flow has a rough, clinkery surface?

Aa lava Signup and view all the answers

Which of the following is an extrusive igneous rock?

Basalt Signup and view all the answers

What is the main difference between intrusive and extrusive igneous rocks?

Intrusive rocks cool more slowly than extrusive rocks. Signup and view all the answers

What category of igneous rocks contains more light-colored feldspars and silica than dark-colored minerals?

Granitic rocks Signup and view all the answers

Which type of igneous rock is known for containing mostly darker silicate minerals and calcium-rich plagioclase feldspar, with little quartz?

Basaltic rocks Signup and view all the answers

What is the primary mineral in granitic rocks that makes up about 70% of the Earth's crust?

Feldspar Signup and view all the answers

Which type of igneous rock tends to be more dense than granitic rocks?

Basaltic rocks Signup and view all the answers

What category of igneous rocks has a composition between granites and basalts, with approximately 25% dark silicate minerals?

Andesitic rocks Signup and view all the answers

What is the term used for basaltic lava that has a rough, jagged surface texture?

Aa lava Signup and view all the answers

CE 211 - Igneous Rocks and Rock Cycle Quiz

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Questions and Answers

What is the term used to describe very fine-grained igneous rocks?

Which type of igneous rock texture is characterized by the presence of both coarse and fine-grained minerals?

Which type of igneous rock texture is formed when magma or lava cools very quickly, resulting in a glassy appearance?

What is the term used to describe the ejection of fragmented rock material from a volcanic eruption?

Which type of igneous rock texture is characterized by very large, coarse-grained minerals?

What is the name given to the rough, jagged surface of an `aa` lava flow?

What type of igneous rock has a glassy texture?

Which type of igneous material is formed by explosive volcanic eruptions?

What type of igneous rock has a coarse-grained, pegmatitic texture?

Which type of lava flow has a rough, clinkery surface?

Which of the following is an extrusive igneous rock?

What is the main difference between intrusive and extrusive igneous rocks?

What category of igneous rocks contains more light-colored feldspars and silica than dark-colored minerals?

Which type of igneous rock is known for containing mostly darker silicate minerals and calcium-rich plagioclase feldspar, with little quartz?

What is the primary mineral in granitic rocks that makes up about 70% of the Earth's crust?

Which type of igneous rock tends to be more dense than granitic rocks?

What category of igneous rocks has a composition between granites and basalts, with approximately 25% dark silicate minerals?

What is the term used for basaltic lava that has a rough, jagged surface texture?

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Upgrade to continue

CE 211 - Igneous Rocks and Rock Cycle Quiz

Podcast Beta

Questions and Answers

What is the term used to describe very fine-grained igneous rocks?

Which type of igneous rock texture is characterized by the presence of both coarse and fine-grained minerals?

Which type of igneous rock texture is formed when magma or lava cools very quickly, resulting in a glassy appearance?

What is the term used to describe the ejection of fragmented rock material from a volcanic eruption?

Which type of igneous rock texture is characterized by very large, coarse-grained minerals?

What is the name given to the rough, jagged surface of an aa lava flow?

What type of igneous rock has a glassy texture?

Which type of igneous material is formed by explosive volcanic eruptions?

What type of igneous rock has a coarse-grained, pegmatitic texture?

Which type of lava flow has a rough, clinkery surface?

Which of the following is an extrusive igneous rock?

What is the main difference between intrusive and extrusive igneous rocks?

What category of igneous rocks contains more light-colored feldspars and silica than dark-colored minerals?

Which type of igneous rock is known for containing mostly darker silicate minerals and calcium-rich plagioclase feldspar, with little quartz?

What is the primary mineral in granitic rocks that makes up about 70% of the Earth's crust?

Which type of igneous rock tends to be more dense than granitic rocks?

What category of igneous rocks has a composition between granites and basalts, with approximately 25% dark silicate minerals?

What is the term used for basaltic lava that has a rough, jagged surface texture?

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What is the name given to the rough, jagged surface of an `aa` lava flow?