Rocks The Reference Tables printable pdf download

Rocks The Reference Tables

Name _____________________________

Date ___________________

Rocks and the Reference Tables

Use the rock identification charts on pages 6-7 of the Earth Science Reference Tables to

answer the following questions.

Scheme for Igneous Rock Identification

1. What are some textures of extrusive igneous rocks?

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2. Explain the difference in grain size between Intrusive and extrusive rocks?

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3. Describe how scoria is different from basalt?_____________________

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4. Name of the composition of a rock that is high in iron and magnesium?

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5. Describe the texture and environment of formation of granite.

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6. List the minerals in basalt with their approximate percent composition.

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7. Which minerals are only present in felsic rocks? ____________________

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8. Which minerals are only present in mafic rocks?____________________

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9. Describe the mineral composition of andesite? ____________________

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Rocks The Reference Tables