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Borehole gradient true thickness seam Example Calculation
Calculation example - Seam true thickness and gradient calculation
Contents [show]
A vertical borehole passes through a seam with a known dip at 43o. 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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