Dictionary:Borehole gravimeter

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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]


References

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


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