Gravity Surveying

What can cause a negative gravity anomaly?
A mountain belt
An oceanic trench
What can cause changes in the strength of gravity at points around the earth?
Changes in rock density
Changes in magnetic field strength
What is the average value for gravity at the earths surface?
10.36
5.85
9.81
53.46
What environmental condition must be controlled to ensure that gravimeter readings are not corrupted?
Temperature
Pressure
Humidity
What is the coolest geophysical surveying method ever?
Gravity Surveying!
 
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