CE 211 - Igneous Rocks and Rock Cycle Quiz

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?