A) hard, foliated, hornfels chips in a shale heated by an intrusive granite B) unusually coarse-grained migmatites that crystallized in a caldera C) globular to teardrop-shaped, dark, glassy, silica-rich impact melts D) granular breccias produced by fault zone shattering A) hard, foliated, hornfels chips in a shale heated by an intrusive granite B) unusually coarse-grained migmatites that crystallized in a caldera C) globular to teardrop-shaped, dark, glassy, silica-rich impact melts D) granular breccias produced by fault zone shattering

Exam 7: Metamorphism and Metamorphic Rocks

Examine the words and/or phrases for each question below and determine the relationship among the majority of words/phrases. -Choose the option that does not fit the pattern.

(Multiple Choice)

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Question 61

Foliation in metamorphic rocks is mainly evident in the parallel alignment of certain types of mineral grains.What minerals are they?

(Short Answer)

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Question 62

Foliated metamorphic rocks are composed largely of nonequidimensional grains of minerals such as quartz and calcite.

(True/False)

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Question 63

Slate and schist are both derived by metamorphism of shales and mudstones.

(True/False)

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Question 64

What are two ways that heat (temperature)drives metamorphism?

(Essay)

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Question 65

What do you call a coarse grained, foliated metamorphic rock having thick bands of dark ferromagnesian minerals alternating with pink feldspar and quartz layers?

(Multiple Choice)

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Question 66

Ductile deformation occurs at low stress rates.

(True/False)

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Question 67

Which low-grade metamorphic rock, composed of extremely fine mica and other mineral grains, typically exhibits well-developed rock cleavage?

(Multiple Choice)

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Question 68

Under the application of uniform, confining pressure, rocks will generally ________.

(Multiple Choice)

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Question 69

Which metamorphic rock is formed by cooking sandstone and lacks foliation?

(Short Answer)

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Question 70

What term describes the zone of contact metamorphism where hornfels forms, surrounding an intrusive magma body?

(Multiple Choice)

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Question 71

Relative to a central intrusion, how does metamorphic grade vary across the aureole? Explain or draw this using index minerals or different rock types.

(Essay)

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Question 72

Contact metamorphism is most readily apparent at shallow depths, where the thermal gradients are the steepest (hot intrusion/cold roof rock).

(True/False)

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Question 73

________ is a strong, parallel alignment of coarse mica flakes and/or of different mineral bands in a metamorphic rock.

(Multiple Choice)

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Question 74

What type of sedimentary rock is typically metamorphosed to form slates or phyllites?

(Short Answer)

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Question 75

What are tekites?

(Multiple Choice)

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Question 76

Which of the following rocks would exhibit visible, textural evidence of having undergone significant partial melting?

(Multiple Choice)

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Question 77

Which of the following best describes the conditions of contact metamorphism?

(Multiple Choice)

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Question 78

Amphibolites have gneissic textures and form by regional metamorphism of granites and rhyolites.

(True/False)

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Question 79

A sillimanite hornfels would ________.

(Multiple Choice)

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Question 80

Showing 61 - 80 of 143

Examine the words and/or phrases for each question below and determine the relationship among the majority of words/phrases. -Choose the option that does not fit the pattern.

Foliation in metamorphic rocks is mainly evident in the parallel alignment of certain types of mineral grains.What minerals are they?

Foliated metamorphic rocks are composed largely of nonequidimensional grains of minerals such as quartz and calcite.

Slate and schist are both derived by metamorphism of shales and mudstones.

What are two ways that heat (temperature)drives metamorphism?

What do you call a coarse grained, foliated metamorphic rock having thick bands of dark ferromagnesian minerals alternating with pink feldspar and quartz layers?

Ductile deformation occurs at low stress rates.

Which low-grade metamorphic rock, composed of extremely fine mica and other mineral grains, typically exhibits well-developed rock cleavage?

Under the application of uniform, confining pressure, rocks will generally ________.

Which metamorphic rock is formed by cooking sandstone and lacks foliation?

What term describes the zone of contact metamorphism where hornfels forms, surrounding an intrusive magma body?

Relative to a central intrusion, how does metamorphic grade vary across the aureole? Explain or draw this using index minerals or different rock types.

Contact metamorphism is most readily apparent at shallow depths, where the thermal gradients are the steepest (hot intrusion/cold roof rock).

________ is a strong, parallel alignment of coarse mica flakes and/or of different mineral bands in a metamorphic rock.

What type of sedimentary rock is typically metamorphosed to form slates or phyllites?

What are tekites?

Which of the following rocks would exhibit visible, textural evidence of having undergone significant partial melting?

Which of the following best describes the conditions of contact metamorphism?

Amphibolites have gneissic textures and form by regional metamorphism of granites and rhyolites.

A sillimanite hornfels would ________.

An Introduction to Geology and Plate Tectonics

Minerals: The Building Blocks of Rocks

Igneous Rocks

Volcanoes and Volcanic Processes

Weathering and Soil

Sedimentary Rocks

Geologic Time

Crustal Deformation

Earthquakes and Earth's Interior

The Ocean Floor

Plate Tectonics: The Framework for Modern Geology

Mountain Building and Continental Frameworks

Mass Wasting: The Work of Gravity

Running Water

Groundwater

Glaciers and Glaciation

Deserts and Winds

Shorelines

Mineral and Energy Resources

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