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In Map 19 (next page) the outcrops of beds A, B, C are only shown north of Fault F that has a throw of 200 meters. Draw strike lines for the lithological boundaries north of the fault and then extend them across the fault to complete the outcrop traces of beds A, B, C on the south side of the fault. Determine the angle of plunge of the folds by using the bedding plane attitudes you obtain from the map and plotting them on an equal area net to arrive at the fold axis (assume cylindrical folds). Also construct a fold profile using methods from lab 4. Use a fold line perpendicular to the hinge line trace, passing through the NW corner of the map. Then undo distortion the profile due to hinge plunge using the grid method.

In Map 19 (next page) the outcrops of beds A, B, C are only shown north of Fault F that has a throw of 200 meters. Draw strike lines for the lithological boundaries north of the fault and then extend them across the fault to complete the outcrop traces of beds A, B, C on the south side of the fault. Determine the angle of plunge of the folds by using the bedding plane attitudes you obtain from the map and plotting them on an equal area net to arrive at the fold axis (assume cylindrical folds). Also construct a fold profile using methods from lab 4. Use a fold line perpendicular to the hinge line trace, passing through the NW corner of the map. Then undo distortion the profile due to hinge plunge using the grid method.

Applications and Investigations in Earth Science (9th Edition)
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
Problem 1LR
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In Map 19 (next page) the outcrops of beds A, B, C are only shown north of Fault F that has a throw of 200 meters. Draw strike lines for the lithological boundaries north of the fault and then extend them across the fault to complete the outcrop traces of beds A, B, C on the south side of the fault. Determine the angle of plunge of the folds by using the bedding plane attitudes you obtain from the map and plotting them on an equal area net to arrive at the fold axis (assume cylindrical folds). Also construct a fold profile using methods from lab 4. Use a fold line perpendicular to the hinge line trace, passing through the NW corner of the map. Then undo distortion the profile due to hinge plunge using the grid method.
Transcribed Image Text:In Map 19 (next page) the outcrops of beds A, B, C are only shown north of Fault F that has a throw of 200 meters. Draw strike lines for the lithological boundaries north of the fault and then extend them across the fault to complete the outcrop traces of beds A, B, C on the south side of the fault. Determine the angle of plunge of the folds by using the bedding plane attitudes you obtain from the map and plotting them on an equal area net to arrive at the fold axis (assume cylindrical folds). Also construct a fold profile using methods from lab 4. Use a fold line perpendicular to the hinge line trace, passing through the NW corner of the map. Then undo distortion the profile due to hinge plunge using the grid method.
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