Geologic Maps and Cross Sections
Geologic Maps and Cross Sections
Geologic Maps and Cross Sections
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<strong>Geologic</strong> Structures<br />
Types of stress <strong>and</strong> resulting structures:<br />
Compressional, tensional, <strong>and</strong> shear<br />
Folding (ductile) vs. faulting (brittle rocks)<br />
What are three components of attitude or<br />
orientation of a layer?<br />
Make sure to adjust for magnetic declination of compass<br />
Strike<br />
Compass direction of a horizontal line on bedding<br />
plane (following the “Right Rule” – i.e. dips to right)<br />
Dip direction<br />
perpendicular to strike direction<br />
Dip angle<br />
actual amount of tilt of the layer<br />
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