Dictionary:Borehole gravimeter

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{{#category_index:B|borehole gravimeter}} A remote reading gravimeter that can be lowered through a borehole as a logging tool. The difference between the gravity readings at two different depths gives the apparent density between the depths:


where is the gravity difference in mGal, is the depth difference in meters, and is the depth difference in feet.[1]


  1. LaFehr, T. R., 1983, Rock density from borehole gravity surveys: Geophysics, 48, 341–356.

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Borehole gravimeter
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