The true attitude of bedding at Flagstone, New York, is 319degree, 65degree. Wha
ID: 802809 • Letter: T
Question
The true attitude of bedding at Flagstone, New York, is 319degree, 65degree. What is the apparent dip of bedding on a vertical quarry face that trends toward 020"? In the Granite Wash Mountains of Arizona, bedding in a flysch sequence is oriented 227degree, 34degree. A spaced cleavage in this unit is oriented 022degree, 68degree. The intersection of bedding with cleavage produces a lineation that is visible on bedding-plane surfaces. What is the attitude of the lineation? A sandstone bed strikes 140degree across a stream. The stream flows down a narrow gorge with vertical walls. The apparent dip of the bed on the walls of the gorge is 25degree rightarrow 095degree. What is the true dip of the bed?Explanation / Answer
Answer: 6:
Apparent dip can be calculated as follows:
tan(a) = tan (b) * Sin (c) --------------- equation 1
Where, a = apparent dip, b= true dip, c= angle between strike and apparent dip
Answer 9:
In this case the attitude of lineation is apparent dip, therefore same equation 1 can be use as in Answer 6
Answer 10:
As here also, true dip can be found by using equation 1.
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