. Deep borehole surveys and problems. Boring. PROBLEMS 257 Let i = the inclination of the drill hole XXi from the horizontal. di = the angle between the bedding and the axis of the hole which is obtained from an examination of the drill cores. d = the difference in strike of the bedding and the drill hole. 8 — the true dip of the Fig. 172. Let. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Haddock, M. H. (Marshal
. Deep borehole surveys and problems. Boring. PROBLEMS 257 Let i = the inclination of the drill hole XXi from the horizontal. di = the angle between the bedding and the axis of the hole which is obtained from an examination of the drill cores. d = the difference in strike of the bedding and the drill hole. 8 — the true dip of the Fig. 172. Let. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Haddock, M. H. (Marshall Henry). New York, McGraw-Hill
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