Exercise 3. the sedimentary section off the east coast of the united states is cut by domal structures could be either granite intrusions or salt diapirs. based on your lecture notes and textbook expl how you might combine the observations from seismic refractions and gravity to 1) find those domal structures, and 2) distinguish between the two types of domes. draw two cross-sections - one over granite dome, one over salt diapir. in your cross-section include the physical properties for your model. for each cross-section sketch the expected gravity anomaly. comment on physical property that each method is able to resolve.