# structural geology question bank

Jun 28th, 2015
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ATTITUDE OF PLANES AND LINES : 1. Define dip of a bedding plane. 2. What do you mean by true and apparent dip? 3. Draw a neat sketch to define pitch and plunge of a line. 4. Two planes intersect along a horizontal line. Must one of them be horizontal? Show with the help of neat sketches.

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ATTITUDE OF PLANES AND LINES1. Define dip of a bedding plane.2. What do you mean by true and apparent dip?3. Draw a neat sketch to define pitch and plunge of a line. (2)4. Two planes intersect along a horizontal line. Must one of them be horizontal? Show with the help of neat sketches. (3)5. What is plunge of a line? How is it represented?6. How is the attitude of a plane represented?7. Can the pitch of a line be greater than its plunge? Explain your answer. On what situation(s) is the pitch of a line equal to its plunge? (2+3) [JDC Test]8. A bed is exposed along vertical planes of different orientations. Which vertical plane would show maximum plunge for the trace of bedding plane? [JDC Test 1993]9. A bed (30/60SE) is exposed on a sloping surface. The bed shows an outcrop width of 20m measured in a down-slope traverse trending 75. The surface slope is 30. Determine the true thickness of the bed. (10) [JU 2004]10. What is strike direction? (2) 11. State the condition in which pitch of a line is equal to its amount of plunge. (3) [CU 2002]12. Can the amount of pitch be equal to the amount of plunge of a line lying on an inclined plane? Explain. (4) [

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