Question

1.What differentiates geophysics from geology? (In other words what is the basic difference in the types of data of geophysics and of geology?) Elaborate a little. 2. A magnetic survey profile across a region of dikes has samples separated by 150 meters. What is the Nyquist wavelength? Diagram what happens if overlapping anomalies of some of the dikes are less wide than the Nyquist wavelength. What is the name for this effect? 3. Sketch the gravity anomalies over the following two spheres, which have the same positive anomalous mass (difference between the mass of the sphere and the mass of an identical volume with the density of the surrounding material).

          1.What differentiates geophysics from geology? (In other words what
is the basic difference in the types of data of geophysics and of
geology?) Elaborate a little.
2. A magnetic survey profile across a region of dikes has samples
separated by 150 meters. What is the Nyquist wavelength? Diagram
what happens if overlapping anomalies of some of the dikes are less
wide than the Nyquist wavelength. What is the name for this effect?
3. Sketch the gravity anomalies over the following two spheres, which
have the same positive anomalous mass (difference between the mass of
the sphere and the mass of an identical volume with the density of the
surrounding material).

Added by Todd B.

Question

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