(a) True thickness

(b) Gradient of seam

Thus, *Gradient is 1 in 1.072*

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**A vertical borehole passes through a seam with a known dip at 43 ^{o}. If the apparent thickness of the seam as shown by the borehole core is 2m, calculate: (a) the true thickness of the seam and (b) the gradient of the seam.**

(a) True thickness

(b) Gradient of seam

Thus, *Gradient is 1 in 1.072*

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Last modified on Tuesday, 25 August 2020 11:13

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