Doubts & DiscussionCategory: NumericalStructural geology
Akanksha asked 4 years ago

A coal bed dips 50deg towards N45degW it’s apparent dp towards N20degW will be around?

1 Answers
GeoCon Staff answered 4 years ago

Use this formula
sin ? tan ? = tan ?
where
= real dip.
= apparent dip.
= angle between the strike direction of the plane and the apparent dip direction.
 
in case of your question, it will be:
Strike will be: N45E, apparent dip direction = N20W
? = 50
? = angle between N45E and N20W = 65
tan(?) = Sin(65) . tan (50)
tan(?) = 0.906 x 1.191
tan(?) = 1.08
? = 47.20 degrees

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