Geologic Maps

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Geologic Maps
Goal To understand the basic elements of a
geologic map
Simplified Maine bedrock map
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What is a geologic map?

• Bedrock
• Surficial
• Hazards
• Structural

• Map showing distribution of geologic features

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Reporting the orientations of surfaces and lines
on a map
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How are geologic maps made?
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Field area
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Simplified geologic map of the area
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Balance between data and interpretation
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Recognizing different types of contacts
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Unconformities, faults, and intrusive contacts
will show truncation