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1. Draw and/or discuss the tightness of the fold. How do folds become tighter?

1. Draw and/or discuss the tightness of the fold. How do folds become tighter?

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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1. Draw and/or discuss the tightness of the fold. How do folds become tighter? 2. What is dip isogon? Draw and discuss the fold types based on Ramsay's classification (1967). 3. Draw the upright fold, inclined fold, and recumbent fold, and show the fold axial plane. Draw the Fold Plane and Hinge Line. 4. How do rocks fold? (Draw and Discuss the Flexural slip, Flexural flow, and Tangential Longitudinal Strain (Orthogonal Flexure)). A. What is the difference between a similar and parallel fold (Ramsay's fold type 2 and 1B respectively)? B. Which type of the above fold processes and fold types would be dominant in the deformation of a shale layer vs. a sandstone layer? And Why? 5. Discuss the difference between foliation and lineation (use drawings if necessary). What is the reason why we have foliation and lineation? A.Give examples of foliation and lineation. 6. How is cleavage formed? Discuss the difference between slaty cleavage, pressure solution cleavage, and cleavage refractions. 7. Draw the relationship of cleavage and foliation types, arranged according to burial depth or temperature and with an indication of the spacing of foliation domains. 8. Discuss the relationship between folding and cleavage.
Transcribed Image Text:1. Draw and/or discuss the tightness of the fold. How do folds become tighter? 2. What is dip isogon? Draw and discuss the fold types based on Ramsay's classification (1967). 3. Draw the upright fold, inclined fold, and recumbent fold, and show the fold axial plane. Draw the Fold Plane and Hinge Line. 4. How do rocks fold? (Draw and Discuss the Flexural slip, Flexural flow, and Tangential Longitudinal Strain (Orthogonal Flexure)). A. What is the difference between a similar and parallel fold (Ramsay's fold type 2 and 1B respectively)? B. Which type of the above fold processes and fold types would be dominant in the deformation of a shale layer vs. a sandstone layer? And Why? 5. Discuss the difference between foliation and lineation (use drawings if necessary). What is the reason why we have foliation and lineation? A.Give examples of foliation and lineation. 6. How is cleavage formed? Discuss the difference between slaty cleavage, pressure solution cleavage, and cleavage refractions. 7. Draw the relationship of cleavage and foliation types, arranged according to burial depth or temperature and with an indication of the spacing of foliation domains. 8. Discuss the relationship between folding and cleavage.
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