Activity 3 - Metamorphic Rocks and Your Community

Use the resources listed below to help you complete this activity.

State-Based Resources
General Resources

State-Based Resources: Investigate - Part B: Evidence of Igneous Rocks in Your Community

Examine the geologic map of Ohio .

• Geologic Map of Ohio
• Generalized column of bedrock units in Ohio

Understanding and Applying What You Have Learned

Examine the legend of a geologic map of Ohio and your list of metamorphic rocks found in the region covered by the map.

• Geologic Map of Ohio
• Generalized column of bedrock units in Ohio

Preparing for the Chapter Challenge

Write a one or two paragraph description about the events and evidence for metamorphism in your local area.

• Geologic Map of Ohio
• Generalized column of bedrock units in Ohio

Inquiring Further

Research the history of the formation of metamorphic rocks in the Appalachian Mountains.

There are currently no resources listed for this state.

Investigate how hydrothermal alteration leads to the formation of deposits of valuable minerals like gold, silver, and copper.

• WORD document on Hydrothermal Processes
• Effects of metamorphism on ore deposits
• Fact sheet on gold

General information related to this activity:

Formation of Metamorphic Rocks

Metamorphic Rocks-Physical Geology - TERC
This is an overview of how metamorphic rocks form.

Deformation in Metamorphism

Metamorphism and Metamorphic Rocks - Tulane University
Find out happens when temperature and pressure deform a rock. Description includes clear black and white diagrams to support explanation.

Foliation in Metamorphic Rocks

Metamorphic Atlas of Igneous and Metamorphic Rocks, Minerals and Textures -
California State Polytechnic University
Read the definitions of foliated and non-foliated metamorphic rocks. This site also has a helpful chart to demonstrate the different type of foliations.

The Protoliths of Metamorphic Rocks

Use this table to find out the protoliths of different metamorphic rocks.

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Last updated: May 11, 2010

This project is supported, in part, by the National Science Foundation and the AGI Foundation. Opinions expressed are those of the authors and not necessarily those of the Foundation.