51.%20Geologic%20Structure

51.%20Geologic%20Structure - Geologic Structure Lecture 5...

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Geologic Geologic Structure Structure Lecture 5 Lecture 5 ± Earth stresses can force rock units to fold, Earth stresses can force rock units to fold, fracture or be displaced upon failure fracture or be displaced upon failure ± The rock unit no longer meets the basic The rock unit no longer meets the basic geologic law of horizontality geologic law of horizontality ± Non horizontal beds/features are defined by Non horizontal beds/features are defined by their their strike strike and and dip dip ± Strike is the compass orientation of a Strike is the compass orientation of a horizontal line on the surface horizontal line on the surface ± Dip is the angle from the horizontal to the Dip is the angle from the horizontal to the surface perpendicular to the strike surface perpendicular to the strike Lecture 5: Geologic Structure Page 1 of 17
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Strike Strike Dip Dip Lecture 5: Geologic Structure Page 2 of 17
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Folds from Horizontal Stress Folds from Horizontal Stress Folds from Vertical Stress Folds from Vertical Stress Lecture 5: Geologic Structure Page 3 of 17
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Flat Lying Rocks Flat Lying Rocks Lecture 5: Geologic Structure Page 4 of 17
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Displaced Rocks Displaced Rocks Dipping Beds More Dipping Beds Lecture 5: Geologic Structure Page 5 of 17
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This note was uploaded on 04/16/2011 for the course GEOL 320 taught by Professor Mathewson during the Spring '11 term at Texas A&M.

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51.%20Geologic%20Structure - Geologic Structure Lecture 5...

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