Concept 3 Quiz

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Briefly explain the origin, compositional variations, and crystallization of magma and the distribution of igneous rocks.

This activity contains 10 questions.

Igneous rocks that contain the last minerals to crystallize from magma and consist mainly of feldspars and quartz are said to have a ____________ composition.

maficlithicfelsicgneissicmetamorphic

Which one of the following is not a primary element found in magma?

siliconironoxygencarbonaluminum

Place each mineral or rock type in the correct position on Bowen's Reaction Series by selecting the correct response.
(Bowen's Reaction Series diagram, Copyright © Prentice Hall, Inc.)

The letters A through D appear on an image associated with this question.

This question presents 4 items numbered 3.1 through 3.4. Each item is presented with a pulldown menu containing the letters A through D. For each item below, use the pull-down menu to select the letter that labels the correct part of the image.

3.1 Quartz	[hint]
3.2 Basalt	[hint]
3.3 Potassium feldspar	[hint]
3.4 Granite	[hint]

	Magma is exactly the same as lava.
	Magma is exactly the same as lava.
	True False

Which of the following is not a common dark (mafic) silicate mineral?

potassium feldsparolivineamphibolepyroxenenone of the above

The process that results as the random movement of ions slows and the ions come to rest organized within a pattern is called

liquificationionizationtwinningcrystallizationradioactive decay

The formation of one or more secondary magmas from a single parent magma is best called

crystallizationassimilationmagmatic mixingmagmatic differentiationnone of the above

If a theoretical ultramafic magma begins to solidify, we can expect

minerals rich in Fe and Mg begin to crystallizethe remaining magma composition to be changedother minerals form as the magma continues to coolthe magma to become more silica-rich, making quartz more likely to formall of the above

In which of the following locations are you least likely to see plutonic igneous rocks exposed at the surface?

Mt. Rushmore, Black Hills of South DakotaMt. Washington, New HampshireYosemite National Park, CaliforniaHawaiiall of the above

The crystallization of silicate minerals from magma is better understood because of the experiments and work of

Louis AgassizCharles LyellN. L. BowenAlfred Wegenerall of the above

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